17-03580-01 BC12F-06 DECbrouter 90 X.21 Adapter Cable

A 6 feet long cable designed to connect the DECbrouter 90 to a X.21 leased line.

Connectors Connector 1  50-way, straight, micro-champ (DECbrouter end), Connector 2  15-way, straight, male, D-type (X.21 end).

Wiring:

Connector 1 (50-way) pin      Connector 2 (15 way) pin    Signal Name
 1,2,26                           -                      Code Ground *
 -------------------------------------------------------------------
    5                              2                      T(A) Tx Data A
   30                              9                      T(B) Tx Data B
 -------------------------------------------------------------------
    6                              5                      I(A) DCD A
   31                             12                      I(B) DCD B **
 -------------------------------------------------------------------
    8                              3                      C(A) RTS A
   33                             10                      C(B) RTS B
 -------------------------------------------------------------------
   10                              4                      R(A) Rx Data A
   35                             11                      R(B) Rx Data B **
 -------------------------------------------------------------------
   17                              6                      S(A) Tx Clock A
   42                             13                      S(B) Tx Clock B **
 -------------------------------------------------------------------
   13,15                           -                      Rx Clock A
                                                          DTE Clock A *
 -------------------------------------------------------------------
   38,40                           -                      Rx Clock B
                                                          DTE Clock B *
 -------------------------------------------------------------------
   37                              8                      G DTE Ground
 -------------------------------------------------------------------
 where *  indicates contacts are tied together (at Connector 1).
       ** indicates a 120 Ohm resistor is connected between pins
          6-31, and 10-35, and 17-42; the resistors are located at
          Connector 1.

CL: #VC29

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