Nortel Networks Circuit Card 311 - Manual (Page 554)

554 NT8D09 Analog Message Waiting Line card
Table 220
Analog message waiting line card - power requirements
Voltage
(+/–)
Tolerance
Idle
current Active
current
Maximum
+12.0 V dc 0.36 V dc 48 mA 0 mA 48 mA
+8.5 V dc 0.40 V dc 150 mA 8 mA 280 mA
–48.0 V dc 2.00 V dc 48 mA 40 mA* 688 mA
–48.0 V dc 5.00 V dc 0 mA 10 mA** 160 mA
86.0 V ac 5.00 V ac 0 mA 10 mA*** 160 mA
–150.0 V dc 3.00 V dc 0 mA 2 mA 32 mA
* Current required for each line off-hook
** Each active ringing relay requires 10 mA of battery voltage
*** Reflects the current for ringing a single DN telephone. There may be as many
as five ringers on each line.
Table 221 "Power requirements" (page 554) provides the power
requirements for the analog message waiting line card.
Table 221
Power requirements
Voltage
(+/-) Tolerance
Idle
current
Active
current Max
+ 12.0 V DC 0.36 V DC 48 mA 0 mA 48 mA
+ 8.0 V DC 0.40 V DC 150 mA 8 mA 280 mA
- 48.0 V DC 2.00 V DC 48 mA 40 mA 688 mA
- 48.0 V DC 5.00 V DC 0 mA 10 mA
(Note 1)
320 mA
86.0 V AC 5.00 V AC 0 mA 10 mA
(Note 2)
160 mA
-150.0 V DC 3.00 V DC 0 mA 2 mA 32 mA
Note 1: Each active ringing relay requires 10 mA of battery voltage.
Note 2: Reflects the current for ringing a single station set. There may be as
many as five ringers on each line.
Table 222 "Power requirements" (page 555) provides the power
requirements for the NT8D09 Analog Message Waiting Line Card.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
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