Nortel Networks 1000 - Manual (Page 470)

470 NT8D09 Analog Message Waiting Line card
Table 193
Power requirements (cont’d.)
Voltage
(+/-)
Tolerance
Idle
current Active
current
Max
–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 (or DN telephone).
There may be as many as five ringers on each line.
Table 194 "Analog message waiting line card - power requirements" (page
470)
provides the power requirements for the analog message waiting line
card.
Table 194
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 195 "Power requirements" (page 471) provides the power
requirements for the analog message waiting line card.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
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.