Nortel DMS 100 Series Maintenance Manual page 22

2-6 Maintenance overview
Table 2-1 NTRX41AA output connector J1 (Sheet 2 of 2)
Pin
24
25
26
27
28
29
30
Power requirements
range from -42V to -75V is acceptable. The maximum input current is 0.75A.
Fuse module
The fuse module (NTRX43AA) circuit card provides the following outputs for
cabinets in a CO:
•
•
The system provisions this circuit card with an MSP. This card operates with
an input battery voltage of -48V or -60V.
Note: The QFF fuses are not supplied with this module. The system
provisions the QFF fuses at the cabinet level.
The NTRX43AA circuit card:
•
•
•
Connector P1 provides the power feed for fuses F01 through F04. Connector
P2 provides the power feed for fuses F05 through F08. These fuses are on the
faceplate of the NTRX43AA circuit card. Connector J1 provides the fused
outputs with currents that range from 0.18A through 5.0A. Connector P3
provides alarm outputs that report fuse failure to the NTRX41AA circuit card.
297-8223-550 Standard 04.02 November 2000
D
--
--
FANLMPTST
D2B
BR
--
+15FG
a maximum of eight current-limited feed outputs
one alarm output
is a termination point for power distribution center (PDC) feeds
supplies eight current-limited outputs for different circuits
reports fuse and breaker failures to the NTRX41AA circuit card
C B
FANALM2 --
-- --
ACO AISALM2
D2A TRB
BR BR
TEMPSW2 --
+15FG +5FG
The nominal input voltage is -48V or -60V, but a
A
FANALM1
--
AISALM1
TRA
BR
TEMPSW1
+5FG