Backplane pinout and signaling 489
I/O cable RS-232-C
Pair Pin Pair
color Unit no. Signal Pin no. RS-422
Signal
Patch pair
or
octopus
12T 37 BK-O RI2 22
12R 12 O-BK CTS2 5
Note 1: The RS-232 pinout follows the standard set by the QPC723 RILC.
Note 2: The RS-422 pinout follows the standard set by the QPC430 AILC (first pair: Receive Data;
second pair: Send Data). Receive and Send are designated with reference to the DTE; therefore,
they must be turned over in the cross-connect since most DTE have first pair as Send Data and
second pair as Receive Data.
Table193
RS-232-C and RS-422 pinouts for last three DAC ports
I/O cable RS-232-C
Pair Pin Pair
color Unitno. Signal Pin no. RS-422
Signal Patch pair or
octopus
13T 38 BK-G UNIT 3 TD3 2RDA3
13R 13 G-BK RD3 3RDB3
14T 39 BK-BR DTR3 20 SDA3
14R 14 BR-BK GND3 7SDB3 Connector
15T 40 BK-S DCD3 81
15R 15 S-BK DSR3 6
16T 41 Y-BL RI3 22
16R 16 BL-Y CTS3 5
17T 42 Y-O UNIT4 TD4 2RDA4
17R 17 O-Y (Note) RD4 3RDB4
18T 43 Y-G DTR4 20 SDA4
18R 18 G-Y GND4 7SDB4 Connector
19T 44 Y-BR DCD4 82
19R 19 BR-Y DSR4 6
20T 45 Y-S RI4 22
20R 20 S-Y CTS4 5
21T 46 V-BL UNIT 5 TD5 2RDA5
21R 21 BL-V (Note) RD5 3RDB5
Note: Units 4 and 5 are available when the DAC is installed in a fully wired 24-pair slot.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23May 2008
Copyright© 2003-2008, Nor tel Networks
.