Specifications

APPENDIX A: WAN INTERFACE CABLE PINOUTS
A-2 WPIM-SY LOCAL MANAGEMENT GUIDE
A.1.1 EIA-449
Table A-2 provides connector descriptions and Table A-3 provides pinouts for the
EIA-449 interface cable.
Table A-2. EIA-449 Interface
Cabletron interface cable part number 9380120
Description EIA-530A ALT A to EIA-449
Connector 1 Sub DB 26 pin male connector
Connector 2 DB 37 pin male connector
Table A-3. Cable Pinout for EIA-449
CONNECTOR 1
EIA-530A ALT A
P
A
I
R
CONNECTOR 2
EIA-449
MNEMONIC Dir to NAME Pin # Pin # NAME Dir to MNEMONIC
BA DCE Transmit Data A 2 A 4 Send Data A DCE SD
BA DCE Transmit Data B 14 22 Send Data B DCE SD
BB DTE Receive Data A 3 B 6 Receive Data A DTE RD
BB DTE Receive Data B 16 24 Receive Data B DTE RD
CB DTE Clear to Send A 5 C 9 Clear to Send A DTE CS
CB DTE Clear to Send B 13 27 Clear to Send B DTE CS
CA DCE Request to Send A 4 D 7 Request to Send A DCE RS
CA DCE Request to Send B 19 25 Request to Send B DCE RS
DB DTE Transmit Signal Timing A 15 E 5 Send Timing A DTE ST
DB DTE Transmit Signal Timing B 12 23 Send Timing B DTE ST
DD DTE Receive Signal Timing A 17 F 8 Receive Timing A DTE RT
DD DTE Receive Signal Timing B 9 26 Receive Timing B DTE RT
DA DCE Transmit Signal Timing A 24 G 17 Terminal Timing A DCE TT
DA DCE Transmit Signal Timing B 11 35 Terminal Timing B DCE TT
CE DTE Ring Indicator 22 15 Incoming Call DTE IC
TM DTE Test Mode 25 18 Test Mode DTE TM
CC DTE DCE Ready 6 11 Data Mode DTE DM
CD DCE DTE Ready 20 12 Terminal Ready DCE TR
- SHIELD 1
AC Signal Common 23 20 Receive Common RC
AB Signal Common 7 19,
30,
37
Send Common,
Terminal Ready B,
Signal Ground
SG,
TR_B,
SC