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Engineering and configuration guidelines 57
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Peripheral Equipment Power Supply
AC
(NT8DO6AA)
The Peripheral Equipment Power Supply AC is used to provide power to all
peripheral equipment modules in
J%
systems. It converts 208/240 V ac to
+5 V, +8.5 V,
f10
V, +15 V, and -48
V
dc voltages used to power peripheral
equipment logic cards and to supply “talk battery” to lines and trunks. This
power supply is located in the far left hand card slot labeled “PE Pwr Sup.”
Configuration guidelines
One Peripheral Equipment Power Supply AC is
used in each of the following AC modules:
-
Intelligent Peripheral Equipment Module (NT.8D37AA)
-
Peripheral Equipment Module (NT8D13AA)
Common/Peripheral Equipment Power Supply AC
(Nl7D14AA)
The Common/Peripheral Equipment Power Supply AC converts
2081240 V ac to +5 V, +8.5 V,
+_15
V,
+_12
V,
48
V, -150 V dc, and
86 V ac/20 Hz ringing voltages used to power peripheral and common
equipment, supply talk battery, and light Message Waiting lamps on 500/2500
sets. It is located in the left of the Module in the slot
labelled
“CE/PE Pwr
sup.
“
Configuration guidelines
One Common/Peripheral Equipment Power
Supply AC is used in each of the following AC modules:
-
-
Common/Peripheral Equipment Module
(NTSDllAR
or
NT8DllAC)
-
Remote Peripheral Equipment Module (NT8D47AA)
Ringing Generator AC (NT8D21AA)
The AC Ringing Generator AC operates from a nominal 208/240 V ac input
and provides selectable AC ringing voltage outputs superimposed on
48
V dc.
The frequency and voltage options are 70 V ac at 25/50 Hz, 80 V ac at
25150
Hz, and 86 V ac at 20/25. It also supplies -150 V dc message waiting lamp
500/2500 set applications. The Ringing Generator mounts in the PE modules
to the right of the Peripheral Equipment Power Supply.
Configuration guidelines
One Ringing Generator AC is used in each of the
following, when these AC modules support 500- or 2500~type analog sets:
-
Intelligent Peripheral Equipment Module (NT8D37AA)
-
Peripheral Equipment Module (NT8D13AA)
Power engineering 553-3001-l 52
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