Eia-449 - Cabletron Systems CSX200 CyberSWITCH Installation Manual

Appendix A: WPIM Cable Specifications

EIA-449

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