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Appendix A: WPIM Cable Specifications
A-4 CSX200 Installation Guide
EIA-449
Table A-6 shows the connector number, cable assembly description, and connector type.
Table A-7 provides pin assignments for the EIA-449 interface cable.
Table A-6 EIA-449 Interface
Connector Number Cable Assembly Description Connector Type
1
EIA-530A ALT A to EIA-449
Sub DB 26-pin male connector
2 DB-37 pin male connector
Table A-7 EIA-449 Interface Cable Pin Assignment
Connector 1 EIA-530A ALT A
PAIR
Connector 2 EIA-449
MNEMONIC
DIRECT
TO
NAME PIN PIN NAME
DIRECT
TO
MNEMONIC
BA DCE
Transmit Data A 2
A
4 Send Data A
DCE SD
Transmit Data B 14 22 Send Data B
BB
DTE
Receive Data A 3
B
6 Receive Data A
DTE
RD
Receive Data B 16 24 Receive Data B
CB
Clear to Send A 5
C
9 Clear to Send A
CS
Clear to Send B 13 27 Clear to Send B
CA DCE
Request to Send A 4
D
7 Request to Send A
DCE RS
Request to Send B 19 25 Request to Send B
DB
DTE
Transmit Signal Timing A 15
E
5 Send Timing A
DTE
ST
Transmit Signal Timing B 12 23 Send Timing B
DD
Receive Signal Timing A 17
F
8 Receive Timing A
RT
Receive Signal Timing B 9 26 Receive Timing B
DA DCE
Transmit Signal Timing A 24
G
17 Terminal Timing A
DCE TT
Transmit Signal Timing B 11 35 Terminal Timing B