Hssi Wan Interface Card; Figure 39 Hssi Wan Interface Card; Table 27 T3 Cable Pinouts - Nortel Contivity 1740 Installing

88 Appendix A Technical specifications

HSSI WAN interface card

The HSSI WAN interface card has a 50-pin SCSI II female connector that
provides the signals needed to interface to a T3 modem or modem eliminator.
Figure 39

Figure 39 HSSI WAN interface card

Included in the accessory box is a cable that maps the T3 signals out to a 50-pin
SCSI II male connector.
Table 27

Table 27 T3 cable pinouts

50-pin SCSI male
1
2
3
4
5
6
7
8
9
10
11
12
13
19
24
25
317086-B Rev 00
shows the HSSI WAN interface card.
provides the T3 cable pinouts.
Signal name
GND
RCB
CAB
RDB
LCB
STB
GND
TAB
TTB
LAB
TDB
LBB
GND
GND
TESTB
GND
50-pin SCSI male
1
2
3
4
5
6
7
8
9
10
11
12
13
19
24
25
CS460003A