Electrical Specifications - Nortel Circuit Card Installation Manual

Page 796 of 906

Electrical specifications

Power requirements
Environmental specifications
553-3001-211 Standard 3.00
NTCK16 Generic Central Office Trunk cards
Table 256 shows the power requirements for the NTCK16AX and
NTCK16BX generic Central Office trunk cards.
Table 256
NTCK16 circuit card power requirements
Voltage
+15.0 V dc
(See 1)
-15.0 V dc
(See 1)
+8.5 V dc
(See 2)
+5.0 V dc
Note 1: Analog circuitry is powered with +/-12 V generated from
+/-15 V. The maximum current imbalance between the +/-15 V rails is
100 ma per circuit pack.
Note 2: 8.5V is regulated to give 5 V.
Table 257 lists the environmental specifications of the NTCK16AX and
NTCK16BX generic Central Office trunk cards.
Table 257
NTCK16 circuit card environmental specifications (Part 1 of 2)
Parameter
Operating temperature
Operating humidity
August 2005
Idle Current
170 ma
170 ma
101 ma
160 ma
Specifications
10 to 45 degrees C
20 to 80% RH (non-condensing)
Active current
330 ma
249 ma
100 ma
322 ma