Nortel DMS 100 Series Maintenance Manual page 26

2-10 Maintenance overview
Breakers
The breakers operate over the complete -48V to -60V range.
Pin-outs
Table 2-6 NTRX42AA output connector J1
Pin
1
2
3
4
5
6
7
8
9
10
11
12
Power requirements
range from -42V through -72V is acceptable. The maximum input current is
20A.
Output
specifications.
Table 2-7 NTRX42AA output specifications (Sheet 1 of 2)
Parameter
Voltage
High-voltage shutdown
Low-voltage shutdown
297-8223-550 Standard 04.02 November 2000
Two 10-A magnetic breakers are stacked in this breaker module.
The following table shows NTRX42AA circuit card pin-outs.
Signal
-48VSW1
Not used
ON/OFF1
OEM-ALM1
OEM-ALM2
ON/OFF2
Not used
-48VSW2
Not used
DRIVE1
ILOKOUT
CONVFAIL1
The nominal input voltage is -48V or -60V, but a
The following table shows NTRX42AA circuit card output
Pin Signal
13 CONVFAIL2
14 ILOKIN
15 DRIVE2
16 Not used
17 BAT RTN1
18 BR1
19 RESET1
20 CONVFAIL1
21 CONVFAIL 2
22 RESET2
23 BR2
24 BAT RTN2
Value
-48V or -60V
-72V
-42V