X.25 Interface Co-Processor (ISA)


(X.25 Interface Co-Processor Guide to Operations P/N 06H1845 / U.S.1994) 
Part    FRU P/N
   
   1 X.25 Interface Co-Processor  
   with memory (ISA)    71G6458
   X.25 Interface Co-Processor/2  
   w/o memory (Micro-Channel)  
   (Opt. P/N 07F3130)    44F7121
2 X.25 Interface Co-Processor  
   37-pin Wrap Plug for Adapter    16F1884
3 Cable Option X.21    07F3150
   Cable Option V.24    07F3160
   Cable Option V.35    07F3170
4 Wrap Plug X.21    16F1890
   Wrap Plug V.24    16F1891
   Wrap Plug V.35    16F1861
Part    Option P/N
   
   These cables are also used on the  
   X.25 Interface Co-processor MCA adapter  
   
   X.21 Cable 2.7 meters (9 ft)  
   37-pin female/15-pin male conn.    16F1865
   
   X.21-bis (V.24) Cable 2.7 m (9 ft)  
   37-pin female/25-pin male conn.    16F1869
   
   X.21-bis (V.35) Cable 2.7 m (9 ft)  
   37-pin female/34-pin male conn.    16F1871


Overview

The IBM X.25 Interface Co-Processor, with supporting software, enables the attachment of an ISA-bus-compatible (AT-bus) personal computer system to an X.25 Packet-Switched Network  so that the personal computer can operate as a packet terminal. Synchronous connection to the network is supported through an interface that can be configured as either X.21 or X.21-bis using selectable optional cable.

The X.25 Interface Co-Processor adapter has its own microprocessor and memory, allowing it to perform communication functions.

Highlights

The X.25 Interface Co-Processor adapter provides:



For Connectors see -> X.25 Co-Processor D-shell connectors

Specifications

Air temperature 
Operating / Non-Operating 0 to 60°C (32 to 140°F)

Humidity 
Operating 5% through 90%

Electrical 
+4.8 Vdc to +5.25 Vdc 875 mA
-5.5 Vdc to -4.52 Vdc 80 mA
+11.3 Vdc to +12.7 Vdc 25 mA
-11.3 Vdc to -12.7 Vdc 25 mA

Software Requirements

DOS 

- or -

OS/2 

- and -

IBM Realtime Control Microcode (ICAAIM.COM) which is the RAM-resident control program for the X.25 Interface Co-Processor adapter (Diagnostic and RCM diskette )

ICAAIM.COM is autom. loaded onto the adapter by either the IBM X.25 Co-Processor Support Program or the IBM Communications Manager/2 product.

Adapter Switch Setting (10-position SW)

 Factory default Switch setting
 SWITCH Number          10  9  8  7  6  5  4  3  2  1
 1 = On / 0 = Off        1  1  1  1  1  1  1  0  1  1
                         |  |  |  |  |  |  |  |  |  |
                         |  |  |  |  |  |  |  +-------- IRQ 10
                         |  |  |  |  |  |  +----- Memory 512KB
                         |  |  +---------- Base Addr. 02A0 Hex
                         |  +--------- Edge Connector = 2Edges
                         +----------------- Bus Width = 8 Bits
 Interrupt Level Switch Positions
 SWITCH Number           3  2  1
 1 = On / 0 = Off        1  1  1 = IRQ 3        If card is installed in
                         1  1  0 = IRQ 4        a one-edge connector then
                         1  0  1 = IRQ 7        only 3, 4, 7 and 2 is a
                         1  0  0 = IRQ 2 or 9   valid IRQ level (8-bit bus)
                         0  1  1 = IRQ 10
                         0  1  0 = IRQ 11     If multiple X.25 Co-Processor
                         0  0  1 = IRQ 12     cards are installed, they can
                         0  0  0 = IRQ 15     use (share) the same IRQ level
 Memory Size Switch
 SWITCH Number           4
 1 = On / 0 = Off        1 = 512 KB
                         0 = Reserved
 Card I/O Base Address Switch Positions       Physical Card
 SWITCH Number           8  7  6  5           Designation
 1 = On / 0 = Off        1  1  1  1  = 02A0h  0
                         1  1  1  0  = 06A0   1
                         1  1  0  1  = 0AA0   2
                         1  1  0  0  = 0EA0   3
                         1  0  1  1  = 12A0   4
                         1  0  1  0  = 16A0   5
                         1  0  0  1  = 1AA0   6
                         1  0  0  0  = 1EA0   7
                         0  1  1  1  = 22A0   8
                         0  1  1  0  = 26A0   9
                         0  1  0  1  = 2AA0   10
                         0  1  0  0  = 2EA0   11
                         0  0  1  1  = 32A0   12
                         0  0  1  0  = 36A0   13
                         0  0  0  1  = 3AA0   14
                         0  0  0  0  = 3EA0   15
 Edge-Connector Switch
 SWITCH Number           9
 1 = On / 0 = Off        0 = Co-Processor is in one-edge connector
                             expansion slot. (62-pin connector)
                         1 = Co-Processor is in two-edge connector
                             expansion slot. (62+36-pin connector)
 8 or 16 bit / Bus-Width Switch
 SWITCH Number          10
 1 = On / 0 = Off        1 =  8-bit (Adapter in one-edge connector)
 1 = On / 0 = Off        0 = 16-bit (Adapter in two-edge connector)


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