Nortel Networks 2700 User Manual
100
Appendix A Technical specifications
NN46110-311 02.01
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.
provides the signals needed to interface to a T3 modem or modem eliminator.
shows the HSSI WAN interface card.
Figure 44
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.
SCSI II male connector.
provides the T3 cable pinouts.
Table 34
T3 cable pinouts
50-pin SCSI male
Signal name
50-pin SCSI male
1
GND
1
2
RCB
2
3
CAB
3
4
RDB
4
5
LCB
5
6
STB
6
7
GND
7
8
TAB
8
9
TTB
9
10
LAB
10
11
TDB
11
12
LBB
12
13
GND
13
19
GND
19
24
TESTB
24
25
GND
25
CS460003A