      Software Product  Description   C ___________________________________________________________________   : PRODUCT NAME:  Compaq X.25 for OpenVMS Alpha Systems, V1.6 SPD 47.37.15   DESCRIPTION   D Compaq  X.25 for OpenVMS Alpha Systems enables appropriately config-F ured systems to connect to an X.25 Packet Switched Data Network (PSDN)F via an X.25 Relay node on the same Local Area Network (LAN), via a DNAH Phase IV X.25 connector node, or directly using a synchronous controller card.   G The product supports communication via PSDNs conforming to ITU/TSS rec- C ommendation X.25 1980, 1984, and 1988, or to international standard E ISO 8208. Refer to the SUPPORTED PUBLIC NETWORKS section for the list  of supported PSDNs.   G Compaq  X.25 for OpenVMS Alpha Systems also provides the device drivers D and specific data link protocol support for Compaq Computer Corpora-D tion's synchronous communications options for OpenVMS Alpha systems.  E Compaq  X.25 for OpenVMS Alpha Systems software allows an OpenVMS Al-  pha system to:  C o  Connect to other X.25 implementations using RFC 1613 (also known *    as XOT) via a TCP/IP wide area network.  H o  Act as a Gateway Access Protocol (GAP) server for Phase V GAP Clients  C o  Act as an X.25 Connector system for DECnet-Plus X.25 Access sys-     tems   : o  Act as a packet-mode DTE connected to a supported PSDN.  8 o  Support ISO 8208 DTE to DTE point-to-point operation.  / o  Act as a packet-mode DTE connected to a LAN.   C                                                         August 2002        F o  Act as an X.25 Relay node conforming to ISO Technical Report 10029.  C o  Provide an X.25 sub-network for DECnet-Plus CONS and CLNS opera-     tion.  C o  Provide a DEC-HDLC point-to-point data link for DECnet-Plus CLNS 
    operation.   @ o  Act as a combination of the above, chosen on a per-DTE basis.  D The following restrictions of Compaq  X.25 for OpenVMS Alpha Systems software should be noted:   < o  Phase IV GAP Clients (or access nodes) are not supported.  6 o  P.S.I. Access (Phase IV) clients are not supported.  E o  DCE mode is supported for the purposes of point-to-point operation D    as described in ISO 8208; DCE mode for emulation of a PSDN is not
    supported.   5 o  Use of the D bit in data packets is not supported.   C Compaq  X.25 for OpenVMS Alpha Systems supports the following func-  tions:  2 o  Process-to-process (Compaq X.25) communication.D    X.25 for OpenVMS Alpha allows application programs to access X.25@    network services via the standard OpenVMS QIO system service.  , o  Process-to-terminal (X.29) communication.C    Through the X.29 QIO programming interface, users of the OpenVMS E    Alpha system may make outgoing calls to other Compaq or non-Compaq :    systems or suitable network PADs accessible via a PSDN.  , o  Terminal-to-process (X.29) communication.D    Remote terminals connected to the PSDN may access the OpenVMS Al-E    pha host running X.25 by means of an X.29 Switched Virtual Circuit     (SVC) call.  . o  DECnet-Plus Connectionless Network Service.E    The product supports the use of the DEC-HDLC and X.25 protocols as G    sub-networks for the OSI Connectionless-mode Network Service (CLNS).   "                                  2       3 o  DECnet-Plus Connection Oriented Network Service. C    The product supports the OSI Connection Oriented Network Service 3    (CONS) for OSI Transport over X.25 sub-networks.   
 o  X.25 Mail. E    The X.25 Mail utility allows communication across a PSDN via elec- D    tronic mail between two systems running the Mail-11 protocol overC    X.25. Systems that support Mail-11 over X.25 include WAN Support E    for Compaq UNIX[R], X.25 for OpenVMS Alpha, and X.25 installations "    of DECnet-Plus for OpenVMS VAX.  ) o  Wide Area Network (WAN) Device Drivers D    The WAN device drivers support synchronous communications and of-D    fer a supported user ($QIO) interface. This version also includesC    a pseudodriver (WANDRIVER) that provides a programming interface D    to the Data Link level for the LAPB, DEC-HDLC, and LLC2 protocolsC    and an interface to the physical layer of the synchronous commu- -    nication devices supported by the product.   D o  X.25 Relay allows an appropriately configured Alpha system to re-H    lay X.25 packets between a Local Area Network (LAN) and a synchronous@    communications link to a Packet Switched Data Network (PSDN).  D o  X.25 GAP Server allows remote Phase V GAP clients to connect to aF    PSDN via the GAP Server node using the DECnet NSP protocol. The re-F    mote X.25 client (or access node) communicates with the X.25 ServerC    or X.25 Gateway/Connector node using the Gateway Access Protocol )    (GAP) via a DECnet session connection.   D o  The multi-host mode of operation provides the features offered byF    VAX P.S.I. Native and also allows VAX P.S.I. Access systems to con-/    nect to a PSDN as though directly connected.   C o  XOT or X.25 over TCP/IP allows X.25 applications on an appropri- C    ately configured Alpha System to communicate with other RFC 1613 3    implementations over a TCP/IP Wide Area Network.         "                                  3        Features   Conformance to Standards  H Compaq  X.25 for OpenVMS Alpha Systems complies with the following stan- dards:  E o  ITU/TSS recommendations-X.25 (1980, 1984, or 1988), X.3, X28, X.29   C o  International standards ISO-8208, 7776, 8881, 8802/2, 8878, 8473    Virtual Circuits  E Compaq  X.25 for OpenVMS Alpha Systems offers communication over both G Permanent Virtual Circuits (PVCs) and Switched Virtual Circuits (SVCs), E and supports up to 4096 virtual circuits per system. One virtual cir- D cuit is used for each incoming or outgoing X.29 terminal connection,G for each X.25 call, and for each DECnet-Plus routing circuit and trans- F port connection. The use of PVCs for X.29 communication is not definedG by the 1980 and 1984 ITU/TSS recommendations, and is not available with ' Compaq  X.25 for OpenVMS Alpha Systems.   D Virtual circuits may use X.25 protocol over a LAN connection, over aI WAN synchronous communications connection, or may use DIGITAL X.25 Client C for OpenVMS Alpha Systems over a DECnet circuit to a DECnet Gateway C Access Protocol (GAP) connector node. NOTE that there is no support E for use of more than 512 of the available virtual circuits by DIGITAL E X.25 Client for OpenVMS Alpha Systems with DECnet Gateway Access pro- D tocol connector nodes. See the HARDWARE REQUIREMENTS section for de-; tails of GAP connector nodes and ISO relay nodes supported.     Process-to-Process Communication  D The Compaq  X.25 for OpenVMS Alpha Systems programming interface al-F lows application programs to access X.25 packet level services via the standard OpenVMS QIO interface.   C Functions include the establishment and clearing of network connec- D tions, data transmission and reception, sending and receiving of in-G terrupt messages, and resetting of virtual circuits. The interface also   "                                  4       D provides for the segmentation and recombination of messages that are5 longer than the packet size selected for the circuit.   G This interface enables an application program using OpenVMS System Ser- E vices to communicate with complementary X.25 software on other Compaq  or non-Compaq systems.                                                                    "                                  5        Terminal Communications   C Compaq  X.25 for OpenVMS Alpha Systems supports terminal communica- D tions according to ITU/TSS recommendations X.3, X.28, and X.29. OnlyC those terminal parameters defined in the X.3 recommendation are ex- F plicitly supported. Network-specific enhancements or extensions to theG X.3 parameters are available at both the X.29 programming and the host- E based PAD user interface. Terminal processes that depend on these ex- D tensions may not function correctly when used on other PSDNs or whenC accessing one PSDN via another (for example, international access).   G The X.29 interactive terminal interface allows remote asynchronous ter- D minals (character-mode DTEs) connected to the network to communicateE with the OpenVMS Alpha system in a manner similar to local terminals. C The maximum number of terminals supported on a OpenVMS Alpha system C (both local and X.29 remote) cannot exceed the number for which the  system has been configured.   D When using applications designed for interactive, local terminal op-E erations, transmission delays or PAD parameter settings can cause in- E consistencies between incoming X.29 traffic and the application's op- E eration. It may be necessary to make modifications to the application / user interface or alter PAD parameter settings.   D The X.29 interface includes a programming capability for the supportC of specific X.29 signalling requirements, including modification of  PAD parameters.   
 Accounting  E Accounting information is collected and is made available to the user  via a report writing utility.   D For incoming X.29 calls, no information can be retrieved relating to< the process or account onto which a user is logged. Security  D An extensive security facility is provided. Control of remote accessG to the system (incoming security) and local access to the network (out- D going security) are supported. Incoming and outgoing security can be based on any combination of:  "                                  6        o  Normal or reverse charging   
 o  DTE number    o  Network (PSDN)   - o  Process (or user) making the outgoing call   ) o  Application handling the incoming call    Network Management  D The Network Control Language (NCL) is provided for the management ofD Compaq  X.25 for OpenVMS Alpha Systems and DECnet-Plus. NCL provides! network management facilities to:   $ o  Define outgoing call destinations    o  Define incoming call handling  1 o  Modify X.25 frame and packet levels parameters    o  Define security parameters    o  Modify network configuration     o  Monitor connection statistics  ( o  Perform network maintenance functions  F The network manager can be notified of significant network events suchD as security violations or network failures through the event logging	 facility.   F Problem solving is facilitated by the Common Trace Facility (CTF) pro-F vided with the OpenVMS operating system. CTF enables the user to traceE and analyse frames passing between the PSDN and the X.25 \for OpenVMS F Alpha system. In V1.5, the Common Trace Facility (CTF) for OpenVMS Al-E pha X.25 functionality has been updated to match the functionality of E PSI Trace for the OpenVMS VAX X.25 product. This includes the follow-  ing capabilities:   ; o  The ability to trace a circuit given the NWA device name   $ o  The ability to trace an X.29 port  "                                  7       4 o  The ability to trace an individual X.25L3 circuit   Communications Interfaces   D Refer to the tables in this Software Product Description and consultD your local hardware service provider for complete information on theF synchronous controller cards supported by Compaq  X.25 for OpenVMS Al-D pha Systems, as well as a list of the relay/connector nodes that may$ be used as X.25 gateways to the LAN.  C In addition to the devices listed in this Software Product Descrip- F tion, operation over CSMA/CD (ISO 8802/3) and FDDI (ISO 9314) networks@ is supported via the LLC2 protocol or via TCP/IP using RFC 1613.  & Wide Area Network (WAN) Device Drivers  F The WAN device drivers included in X.25 for OpenVMS Alpha Systems sup-D port synchronous communications. The device drivers all offer a sup- ported user ($QIO) interface.   8 The device drivers all support full-duplex HDLC framing.  C In all cases, the data throughput over the synchronous lines is de- 8 pendent on the user applications and system environment.  D The device drivers support modem control signals (DTR, DCD, DSR, RTSD and CTS) where these signals are provided by the selected electrical
 interface.  , Supported controllers are listed in Table 4.  C WAN device drivers include a pseudodriver (WANDRIVER) that provides F a programming interface to the Data Link level for the LAPB, DEC-HDLC,F and LLC2 protocols. The pseudodriver also provides an interface to theE physical layer of the synchronous communications devices supported by F the product. The physical layer interface provides the ability to readH and write HDLC formatted frames (leading/trailing flag, HDLC frame checkI sequencing, HDLC bit stuffing), but protocol interpretation of the frames = must be provided by the user application using the interface.    Optional Facility Support   "                                  8       G Table 1 describes the Optional User Facilities of the 1988 ITU/TSS X.25 E recommendations that Compaq  X.25 for OpenVMS Alpha Systems supports.   C Support for any facility is dependent on the PSDN used. The product D documentation describes specific facility availability for supported PSDNs.  C ___________________________________________________________________   C Table_1:_Optional_User_Facilities_Support__________________________    ITU/TSS  X.25 (1988) ref-( er-                                 Sup-C ence_____Optional_User_Facility_____port[1]________________________   & 6.1      On-line facility regis-    no          tration  ' 6.2      Extended packet se-        yes           quence numbering   ' 6.3      D bit modification         n/a   & 6.4      Packet retransmission      no  ' 6.5      Incoming calls barred      n/a   ' 6.6      Outgoing calls barred      n/a   ' 6.7      One-way logical channel    yes           outgoing   ' 6.8      One-way logical channel    yes           incoming   ' 6.9      Non-standard default       yes           packet sizes   C ___________________________________________________________________ B [1]Refers to those features of a facility that are relevant to the? operation of a DTE. "n/a" refers to DCE facilities requiring no  action from the DTE.  "                                  9         C ___________________________________________________________________    ITU/TSS  X.25 (1988) ref-( er-                                 Sup-C ence_____Optional_User_Facility_____port[1]________________________   ' 6.10     Non-standard default       yes           window sizes   ' 6.11     Default throughput         yes           class assignment   ' 6.12     Flow control parameter     yes           negotiation  ' 6.13     Throughput class nego-     yes           tiation  ' 6.14.1   Closed User Group (CUG)    yes   ' 6.14.2   CUG with outgoing          yes           access                             "                                 10         C ___________________________________________________________________    ITU/TSS  X.25 (1988) ref-( er-                                 Sup-C ence_____Optional_User_Facility_____port[1]________________________   ' 6.14.3   CUG with incoming          yes           access   ' 6.14.4   Incoming calls barred      n/a           within a CUG   ' 6.14.5   Outgoing calls barred      n/a           within a CUG   ' 6.14.6   CUG selection              yes   ' 6.14.7   CUG with outgoing          yes           access selection   ' 6.15.1   Bilateral Closed User      yes           Group (BCUG)   ' 6.15.2   BCUG with outgoing         n/a           access   ' 6.15.3   BCUG selection             yes   ' 6.16     Fast select                yes   ' 6.17     Fast select acceptance     n/a   ' 6.18     Reverse charging           yes   ' 6.19     Reverse charging accep-    n/a           tance  ' 6.20     Local charging preven-     n/a 
          tion   ' 6.21.3   NUI selection              yes   C ___________________________________________________________________ B [1]Refers to those features of a facility that are relevant to the? operation of a DTE. "n/a" refers to DCE facilities requiring no  action from the DTE.  "                                 11         C ___________________________________________________________________    ITU/TSS  X.25 (1988) ref-( er-                                 Sup-C ence_____Optional_User_Facility_____port[1]________________________   ' 6.22     Charging information       yes   ' 6.23.2   RPOA selection             yes   ) 6.24     Hunt group                 no[2]   ' 6.25.1   Call redirection           n/a   & 6.25.2.2 Call deflection selec-     no
          tion   ' 6.25.3   Call redirection or        yes            call deflection notifi-          cation   & 6.26     Called line address        no          modified notification  ' 6.27     Transit delay selection    yes           and indication   & 6.28     TOA/NPI address selec-     no          tion and indication  ' 7.1      Non-X.25 facilities        yes   ' G.3.1    Calling Address Exten-     yes 
          sion   ' G.3.2    Called Address Exten-      yes 
          sion   C ___________________________________________________________________ B [1]Refers to those features of a facility that are relevant to the? operation of a DTE. "n/a" refers to DCE facilities requiring no  action from the DTE.  @ [2]The individual DTEs must be assigned addresses independent of the hunt group address.   "                                 12         C ___________________________________________________________________    ITU/TSS  X.25 (1988) ref-( er-                                 Sup-C ence_____Optional_User_Facility_____port[1]________________________   ' G.3.3.1  Minimum throughput         yes           class  ' G.3.3.2  End-to-end transit         yes           delay  ' G.3.3.3  Priority                   yes   ' G.3.3.4  Protection                 yes   ' G.3.4    Expedited data negotia-    yes 
          tion C ___________________________________________________________________ B [1]Refers to those features of a facility that are relevant to the? operation of a DTE. "n/a" refers to DCE facilities requiring no  action from the DTE.C ___________________________________________________________________    INSTALLATION  C Compaq recommends that a customer's first purchase of this software D product include Compaq Installation Services. These services provideG for installation of the software product by an experienced Compaq Soft- D ware Specialist. Only customers experienced with Compaq's X.25 prod-! ucts should attempt installation.    Customer Responsibilities   F In some cases, the X.25 network supplier may impose restrictions, lim-C itations, or requirements on the proposed Compaq network configura- F tion. The customer must ensure these are understood and adhered to for
 each network.   "                                 13       9 Before installation of the software, the customer should:   D o  Install all requisite software and hardware, including terminals.  G o  Obtain, install, and demonstrate as operational any modems and other C    equipment and facilities necessary to interface to Compaq's com-     munication equipment.  H o  Demonstrate equivalence of operation for modems other than Bell 208A,E    208B, 209, 212A synchronous modems, or, in Europe, employ only PTT     approved modems.   D o  Subscribe to the Open User Group and to at least two SVCs to com-D    plete the product's installation checkout (this test loops infor-E    mation from the X.25 for OpenVMS Alpha system to the PSDN and back G    to the X.25 for OpenVMS Alpha system). Systems in Closed User Groups D    only, or where the PSDN does not support calls to the originatingD    DTE address, require specially negotiated arrangements for Compaq    to install the product.  E o  Make available for a reasonable period of time, as mutually agreed E    by Compaq and the customer, all hardware, communication facilities C    and terminals that are to be used during a Compaq supervised in-     stallation.   HARDWARE REQUIREMENTS   F Alpha processors listed in the OpenVMS Alpha Software Product Descrip-@ tion (SPD 41.87.xx) are supported with the following exceptions:  $    DEC 4000 Model 600/700 series [1]    DEC 7000 Model 600 [1]     DEC 10000 Model 600 [1])    DEC 3000 Model 300/300L/300LX/300X [2]    System Memory Required   ____________________F  No  synchronous communication option available.  Connection available     only via LLC2.  B  Only  standard workstation configurations support use of the SCC.  "                                 14       D In addition to the memory requirements of OpenVMS Alpha and user ap-G plications, the minimum memory requirements of Compaq  X.25 for OpenVMS  Alpha Systems are:  . o  2.5 Mbytes for software and data structures  C o  40 Kbytes for each active virtual circuit in a Client configura-     tion   D o  10 Kbytes for each active virtual circuit in a directly connected    configuration  . o  7 Kbytes for each DTE configured to use XOT  C These figures represent an upper bound only and should be used as a H guide to sizing a system to provide adequate X.25 performance. The prod-E uct will require less memory than quoted. However, an underconfigured C system will display reduced performance, not only for X.25 communi- % cations but also for other processes.    Communication Devices Required  G Compaq  X.25 for OpenVMS Alpha Systems requires one or more synchronous A controller cards when directly connected to one of the following:     o  a PSDN via the X.25 protocol;  1 o  another system using DECnet-Plus over X.25; or   9 o  another Compaq system using DECnet-Plus over DEC-HDLC.   C The devices available on the supported processors are listed in Ta- F ble 3. For additional information on the configuration and performance: of these devices see the CONFIGURATION GUIDELINES section.  G For operation using the ISO 8802-2 protocol (LLC2) the product requires D a Local Area Network (LAN) device. The product supports Compaq's ISOG 8802-3 (CSMA/CD) and ISO 9341 (FDDI) devices for use with the LLC2 pro-  tocol.  "                                 15       H For operation over LLC2 to an X.25 relay node, the supported relay nodes are   A o  DEC Network Integration Server (DECNIS) 500/600 (SPD 36.05.xx)   G o  Alpha system running WAN Support for Compaq UNIX (SPD 42.47.xx) con-     figured for X.25 relay   C For operation over DECnet (using the Gateway Access Protocol, GAP), " the supported connector nodes are:  A o  DEC Network Integration Server (DECNIS) 500/600 (SPD 36.05.xx)   I o  DECnet-Plus V7.1 (or later) for OpenVMS VAX configured for X.25 multi- !    host operation (SPD 25.03.xx).   ? o  DECnet-Plus V7.1 (or later) for OpenVMS Alpha (SPD 50.45.xx)   D For operation using RFC 1613 for X.25 over TCP/IP (XOT), the productC requires specific versions of OpenVMS, DECnet-Plus, and TCP/IP Ser- F vices for OpenVMS software. See the SOFTWARE REQUIREMENTS section. TheE TCP/IP software must provide support for the PWIP driver. TCP/IP Ser- C vices for OpenVMS and some third-party TCP/IP products provide PWIP E driver support. A communication controller appropriate for the TCP/IP  software will also be required.   H For additional information on the configuration and performance of theseC relay nodes, consult your local hardware service provider and rele- # vant Software Product Descriptions.    Disk Space Required   I The disk space required for installation and use of the product is 15,000  Blocks (7.5 Mbytes).  D This size is approximate. The actual size will vary depending on the? user's system environment, configuration, and software options.       "                                 16        OPTIONAL HARDWARE   C Additional communications devices, subject to limitations described 4 in the CONFIGURATION GUIDELINES section of this SPD.   SOFTWARE REQUIREMENTS   G OpenVMS Alpha Operating System V7.3-1 with DECnet-Plus V7.3-1 for Open- 
 VMS Alpha.C OpenVMS Alpha Operating System V7.3 with DECnet-Plus V7.3 for Open-  VMS Alpha plus ECO2 G OpenVMS Alpha Operating System V7.2-2 with DECnet-Plus V7.2-1 for Open- $ VMS Alpha plus ECO5 for XOT support.H For XOT support only, Compaq TCP/IP Services for OpenVMS V5.3 (for Open-D VMS V7.3-1), V5.1 (for OpenVMS V7.3 and 7.2-2) or other TCP/IP soft-& ware with support for the PWIP driver.   GROWTH CONSIDERATIONS   E The minimum hardware and software requirements for any future version C of this product may be different from the requirements for the cur- 
 rent version.    SUPPORTED PUBLIC NETWORKS   D Table 2 shows the public PSDNs supported by the product in the coun-C tries shown. In addition, certain private PSDNs have been tested by D Compaq and appropriate profiles have been included with the product.2 For more detail, consult your local Compaq office.                      "                                 17       C ___________________________________________________________________   C Table_2:_Supported_Public_Networks_________________________________   C Country____________Public_Networks[1]______________________________    Argentina          Arpac Australia          Austpac Austria            Datex-P Belgium            DCS Brazil             Renpac & Canada             Datapac, Infoswitch Chile              VTRnet  Denmark            Datapak Eire               Eirpac  Finland            Datapak France             Transpac  Germany            Datex-P* Hong Kong          Datapak, Inet, Intelpak Indonesia          SKDP  Ireland            Ciepac  Italy              Itapac A Japan              CC-VAN, DDX-P 80/84, Jaisnet, Tymnet[R], Venus                     LP  Luxembourg         Luxpac  Malaysia           Maypac  Mexico             Telepac Netherlands        Datanet 1 New Zealand        Pacnet  Norway             Datapak Pakistan           Paknet  Philippines        Datanet Portugal           Telepac Singapore          Telepac South Korea        Dacomnet  Spain              IberpacC ___________________________________________________________________ A [1 ]Trademarks under which these services are offered are propri-  etary to the respective PTTs.   "                                 18         C ___________________________________________________________________   C Country____________Public_Networks[1]______________________________   & Sweden             Datapak, Datapak II Switzerland        Telepac Taiwan             Pacnet  Thailand           Thaipak Turkey             Turpak + United Kingdom     PSS[2], Postgem, Mercury C ___________________________________________________________________ A [1 ]Trademarks under which these services are offered are propri-  etary to the respective PTTs.   A [2 ]PSS is supported only when the Extended Facilities option has  been subscribed.                                              "                                 19         C Tabled2S(Cont.):_Supported,PubliceNetworksll_Atlantic______________   )                    CompuServe[R], ConnNet *                    FedexITC, FreedomNet II"                    Impacs, Infonet,                    Mark*Net Extended Service&                    Pacific Bell PPSnet&                    Pulsenet, Sprintnet%                    Telenet[R], Tymnet "                    US West Digipac&                    Western Union PTN-1                    Worldnet   C ___________________________________________________________________ A [1 ]Trademarks under which these services are offered are propri-  etary to the respective PTTs. C ___________________________________________________________________    CONFIGURATION GUIDELINES  C For direct connection of the Alpha system to the PSDN, operation of I the product requires the use of one or more synchronous controller cards. C The following devices are supported by Compaq  X.25 for OpenVMS Al-  pha Systems:   o  PBXDD-Ax   D    -  A range of single slot multi-port (2 and 4) serial synchronous"       communications PCI adaptors.  # o  PBXDP-Ax (retired December 2000)    o  PBXDI-Ax   D    -  A range of single slot dual port serial synchronous communica-       tions ISA adapters.    o  DNSES  K    -  Single slot dual port serial synchronous communications EISA adapter.   "                                 20        o  WANcontroller 720 (DSYT1)  D    -  Single slot dual port TURBOchannel serial synchronous communi-       cations adapter.  C    -  For systems with no available TURBOchannel slots, an extender        box may be required.   o  Integral SCC device  D    -  A single port multi-function device on the system motherboard.@       Only the synchronous communications function is supported.  C    -  Limited modem signalling capabilities. Local and remote loop- :       back signals and DTE-sourced clock are not provided.  D Additional factors to consider when configuring hardware devices for use with the product are:   H o  Hardware configuration limits, such as power supply, backplane space,C    bus throughput, mapping registers, and any other restrictions on E    the number of devices per CPU or per bus must be observed. Consult @    your local hardware service provider for further information.  D o  CPU utilization. Ensure sufficient CPU power will be available toE    drive the required number of lines at the desired speeds and leave 0    sufficient margin for application processing.  D The supported devices available on each system are given in Table 3.D The operational characteristics of each device are given in Table 4.  C ___________________________________________________________________   C Table_3:_Synchronous_Controllers___________________________________   C System___________________Devices_supported_________________________    DEC 2000 Models          DNSES 300/500   "                                 21         C ___________________________________________________________________   C System___________________Devices_supported_________________________     DEC 3000 Model 300L      SCC [1]  ' DEC 3000 Models          SCC [1], DSYT1  300/300LX/300X  # DEC 3000 Models          SCC, DSYT1  400/400S  # DEC 3000 Models          SCC, DSYT1 
 500/500S/500X   # DEC 3000 Models          SCC, DSYT1  600/600S  # DEC 3000 Models          SCC, DSYT1 	 700,700LX   # DEC 3000 Models          SCC, DSYT1  800/800S  # DEC 3000 Models          SCC, DSYT1 	 900,900LX     DEC 4000 Models          N/A [2] 600/700     DEC 7000 Model 600       N/A [2]    DEC 10000 Model 600      N/A [2]  ( Digital 2100 Server      DNSES, PBXDP-Ax A500MP  ( Digital 2100 Server      DNSES, PBXDP-Ax A600MP  + AlphaServer 300 4/266    PBXDI-Ax, PBXDP-Ax   ! AlphaServer 400          PBXDI-Ax  4/166/ 4/233  C ___________________________________________________________________ > [1]Only standard Workstation configurations support use of the SCC.  < [2]No synchronous communication option available. Connection available only via LLC2.  "                                 22         C ___________________________________________________________________   C System___________________Devices_supported_________________________   ! AlphaServer 800          PBXDP-Ax  5/333, 5/400, 5/500   ( AlphaServer 1000         DNSES, PBXDP-Ax 4/233, 4/266, 5/300   ( AlphaServer 1000A        DNSES, PBXDP-Ax 4/233, 4/266, 5/266, 5/333, 5/400, 5/500   ( AlphaServer 1200         DNSES, PBXDP-Ax 5/333   ( AlphaServer 2100         DNSES, PBXDP-Ax 4/200, 4/233, 4/266, 4/275, 5/250, 5/300   ( AlphaServer              DNSES, PBXDP-Ax 2100A/2100A LP 4/275,  5/250, 5/300  ( AlphaServer 4000         DNSES, PBXDP-Ax 5/300, 5/300E, 5/400,  5/466   ( AlphaServer 4100         DNSES, PBXDP-Ax 5/300, 5/400  ( AlphaServer 8200         DNSES, PBXDP-Ax 5/300, 5/350, 5/400, 5/440, 5/625  ( AlphaServer 8400         DNSES, PBXDP-Ax 5/300, 5/350, 5/400, 5/440, 5/625  + AlphaServer DS10,        PBXDP-Ax, PBXDD-Ax  DS10L   + AlphaServer DS20         PBXDP-Ax, PBXDD-Ax   + AlphaServer DS20E        PBXDP-Ax, PBXDD-Ax   "                                 23         C ___________________________________________________________________   C System___________________Devices_supported_________________________   + AlphaServer ES40,        PBXDP-Ax, PBXDD-Ax  ES45  + AlphaServer GS40         PBXDP-Ax, PBXDD-Ax   + AlphaServer GS60,        PBXDP-Ax, PBXDD-Ax  GS60E   + AlphaServer GS80         PBXDP-Ax, PBXDD-Ax   + AlphaServer GS140        PBXDP-Ax, PBXDD-Ax   + AlphaServer GS160        PBXDP-Ax, PBXDD-Ax   + AlphaServer GS320        PBXDP-Ax, PBXDD-Ax   ( Digital 2100 Server      DNSES, PBXDP-Ax A500MP, A600MP  + DIGITAL Personal         PBXDP-Ax, PBXDI-Ax  Workstations 500au,  433au, 600au  + AlphaStation 200         PBXDI-Ax, PBXDP-Ax  4/100, 4/166, 4/233   + AlphaStation 250         PBXDI-Ax, PBXDP-Ax  4/266               "                                 24         C ___________________________________________________________________   C System___________________Devices_supported_________________________   + AlphaStation 255/233,    PBXDI-Ax, PBXDP-Ax  255/300   + AlphaStation 400         PBXDI-Ax, PBXDP-Ax  4/166, 4/233, 4/266   ! AlphaStation 500/266,    PBXDP-Ax  500/333, 500/400,  500/500   ( AlphaStation 600         DNSES, PBXDP-Ax 5/266, 5/333  ( AlphaStation 600A        DNSES, PBXDP-Ax 5/500   ! AlphaStation XP1000      PBXDP-Ax   + Alpha 21064/21064A       PBXDP-Ax, PBXDI-Ax  PCI reference board  (EB64+)   + Alpha 21164 PCI          PBXDP-Ax, PBXDI-Ax  reference board  (EB164)   + Alpha PC64 reference     PBXDP-Ax, PBXDI-Ax 
 board (APC64)   + Alpha 4/233 PICMG SBC    PBXDP-Ax, PBXDI-Ax   + Alpha 4/266 PICMG SBC    PBXDP-Ax, PBXDI-Ax   + Alpha 5/366 PICMG SBC    PBXDP-Ax, PBXDI-Ax   C Alpha_5/500_PICMG_SBC____PBXDP-Ax,_PBXDI-Ax________________________   "                                 25       C ___________________________________________________________________   C Table_4:_Synchronous_Controller_Characteristics____________________                        Max.%            Max.     HDLC     Max.X.25 !            line     data     data @            speed    size     size      Supported interface stan-C Device_____(Kbps)___(bytes)__(bytes)[1]dards_______________________   6 PBXDP-     2x2400,  8300     4096      EIA-232 EIA-4226 Ax         4x2400                      EIA-423 EIA-5300 PCI        or                          V.24/V.28+            8x1200                      V.35 .                                        X.21[2].                                        EIA-485  6 PBXDD-     2x2400,  8300     4096      EIA-232 EIA-449. Ax         4x2400                      EIA-530+ PCI                                    X.11 0                                        V.24/V.35  . PBXDI-     2x2400,  8300     4096      EIA-232. Ax         4x2400                      EIA-5300 ISA                                    V.24/V.28+                                        V.35 .                                        X.21[2]  . DNSES      2x64     4080     2048      EIA-2326 EISA       or                          EIA-422 EIA-4230            1x2000                      V.10/V.110                                        V.24/V.35  . DSYT1      2x64     4080     2048      EIA-2326 Turbo      or                          EIA-422 EIA-4230 Channel    1x2000                      V.10/V.110                                        V.24/V.35  3 SCC        19.2     1018     512       EIA-232 V.24 C ___________________________________________________________________ 3 [1]Fragmentation of larger data sizes is supported.   A [2]X.21 electrical levels and connector in data-leads only commu- - nication. X.21 call control is not supported. C ___________________________________________________________________   "                                 26        DISTRIBUTION MEDIA  H This software and documentation are available on the Compaq CD-ROM Soft-I ware Library for OpenVMS Alpha. The software documentation is also avail-  able in hardcopy format.   ORDERING INFORMATION   Software Licenses: QL-0THA9-**) Software Media/Documentation: QA-03XAA-H8 . Software Documentation (hardcopy): QA-0THAA-GZ& Software Product Services: QT-0THA*-**  F *  Denotes variant fields. For additional information on available li-D    censes, services, and media, refer to the appropriate price book.   SOFTWARE LICENSING  J Customers who purchased the DIGITAL X.25 Client product (see SPD 46.37.xx)F for an OpenVMS Alpha system may upgrade that processor to Compaq  X.25D for OpenVMS Alpha Systems, Version 1.6 at no additional cost. CompaqD X.25 for OpenVMS Alpha Systems, Version 1.6 can be installed and en-I abled using the same product authorization key (PAK) received for DIGITAL F X.25 Client for OpenVMS Alpha. Thus the software upgrade of an OpenVMSC Alpha system from DECnet and DIGITAL X.25 Client to DECnet-Plus and D X.25 requires no new license purchases. This condition in no way su-> persedes or invalidates Compaq's licensing terms and policies.  F Specific functions of the Compaq  X.25 for OpenVMS Alpha Systems prod-5 uct are enabled by the licenses described in Table 5.                     "                                 27       C ___________________________________________________________________   C Table_5:_Software_Licenses_________________________________________   C License____________Function_Enabled________________________________   ? DECnet-Plus        CONS over LAPB, LLC2, GAP, or XOT. CLNS over                     DEC-HDLC.  : Compaq X.25 for    All functions over LAPB, LLC2, and XOT.
 OpenVMS Alpha   4 DIGITAL X.25       All functions over LAPB and LLC2.
 Client forC OpenVMS_Alpha______________________________________________________   E This software is furnished only under a license. For more information F about Compaq's licensing terms and policies, contact your local Compaq office.   $ License Management Facility Support:  F This layered product supports the OpenVMS Alpha License Management Fa- cility.   C License units for this product are allocated on an Unlimited System C Use basis. For more information on the License Management Facility, E refer to the OpenVMS Alpha Operating System Software Product Descrip- % tion (SPD 41.87.xx) or documentation.    SOFTWARE PRODUCT SERVICES   D A variety of service options are available from Compaq. For more in-, formation, contact your local Compaq office.            "                                 28        SOFTWARE WARRANTY   F This software is provided by Compaq with a 90 day comformance warrantyF in accordance with the Compaq warranty terms applicable to the license	 purchase.   D Compaq has designed or adapted this software product to operate withE equipment conforming to the ISO standards 7776/8208 and with the pub- E lic networks in the associated countries and with certain private PS- 1 DNs that have been tested and approved by Compaq.   E Compaq cannot offer its standard warranty for this software unless it E has been tested with such networks and the software configured appro- E priately. Such a testing service is available from Compaq on request, D and will permit both full Compaq support of the X.25 for OpenVMS Al-D pha product and also ensure that X.25 for OpenVMS Alpha is optimally& configured against the PSDN concerned.  F The presence of a network/country combination in the list of supportedF public PSDNs indicates Compaq's commitment to support X.25 for OpenVMSF Alpha when using that public X.25 service. It does not necessarily im-C ply that network certification by the particular networking author- E ity has been granted for all or any hardware devices supported by the I X.25 for OpenVMS Alpha software product. Please contact your local Compaq D office for up-to-date information regarding supported configurations and certification status.   F The above information is valid at time of release. Please contact your8 local Compaq office for the most up-to-date information.  2  2002 Compaq Information Technologies Group, L.P.  C Compaq, the Compaq logo, DECnet, and OpenVMS are trademarks of Com- G paq Information Technologies Group, L.P. in the U.S. and/or other coun-  tries.  C Microsoft and Windows NT are trademarks of Microsoft Corporation in   the U.S. and/or other countries.  D UNIX is a trademark of The Open Group in the U.S. and/or other coun- tries.  "                                 29       C All other product names mentioned herein may be trademarks of their  respective companies.   F Confidential computer software. Valid license from Compaq required forC possession, use, or copying. Consistent with FAR 12.211 and 12.212, H Commercial Computer Software, Computer Software Documentation, and Tech-C nical Data for Commercial Items are licensed to the U.S. Government + under vendor's standard commercial license.   E Compaq shall not be liable for technical or editorial errors or omis- C sions contained herein. The information is provided "as is" without F warranty of any kind and is subject to change without notice. The war-E ranties for Compaq products are set forth in the express limited war- E ranty statements accompanying such products. Nothing herein should be 1 construed as constituting an additional warranty.                                                   "                                 30                                                                                       "                                 31                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      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