Eia-449 – Cabletron Systems CSX200 User Manual
Page 60
Appendix A: WPIM Cable Specifications
A-4
CSX200 Installation Guide
EIA-449
shows the connector number, cable assembly description, and connector type.
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