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.
Table 193
RS-232-C and RS-422 pinouts for last three DAC ports
I/O cable RS-232-C
Pair Pin
Pair
color Unit no. Signal Pin no.
RS-422
Signal
Patch pair or
octopus
13T
38
BK-G UNIT 3 TD3
2
RDA3
13R
13
G-BK RD3
3
RDB3
14T
39
BK-BR DTR3
20
SDA3
14R
14
BR-BK GND3
7
SDB3 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 UNIT 4 TD4
2
RDA4
17R
17
O-Y (Note) RD4
3
RDB4
18T
43
Y-G DTR4
20
SDA4
18R
18
G-Y GND4
7
SDB4 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
2
RDA5
21R
21
BL-V (Note) RD5
3
RDB5
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 23 May 2008
Copyright © 2003-2008, Nortel Networks
.