Getting Started with the Contivity Extranet Switch 4500
2-10
T3 Interface (Optional)
The Single T3 WAN connection is located on a PCI card which has a 50-pin SCSI
II female connector that provides the signals needed to interface to a T3 modem or
Modem Eliminator. Included in the accessory box is a cable, which maps the T3
signals out to a 50-pin SCSI II male connector. Figure 2-4 shows a T3 interface.
Figure 2-4.
T3 Interface
Table 2-4 shows the cable pinouts.
Table 2-4.
T3 Cable Pinouts
J1
Signal J2
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
26
GND
26
Содержание Nortel Contivity Extranet Switch 4500
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