60 Engineering and configuration guidelines
internal DC power equipment components.
The following components are required to configure and DC powered system.
Common Equipment Power Supply DC (NT6D41 AA)
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The Common Equipment Power Supply DC is used in the common equipment
c$;;j
Modules in DC systems. It is located in the first slot on the left in the module
labeled “CE Pwr Sup,” and converts -48 V dc to +5 V and +12 V dc, to
provide all required voltages for CE and network circuit cards.
Configuration guidelines
One Common Equipment Power Supply DC is
used in each of the following DC modules:
-
CPU Module (NT8D34DC)
-
Network Module (NT8D35DC)
-
CPU/Network Module (NT6D39DC)
Peripheral Equipment Power Supply DC (NT6D40AA)
..
The Peripheral Equipment Power Supply DC is used to provide power to all
peripheral equipment Modules in DC systems. It converts -48 V dc to +5 V,
+8.5
V,
+lO
V,
f15
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 DC is
used in each of the following DC modules:
-
Intelligent Peripheral Equipment Module (lYIBD37DC)
-Peripheral Equipment Module
(NT8D13DC)
Common/Peripheral Equipment Power Supply DC
(NVDO4AA)
The Common/Peripheral Equipment Power Supply DC converts 48 V dc to
+5
V, +8.5 V, +15 V,
f12
V, -48 V, and -150 V dc voltages used to power
peripheral and common equipment, supply talk battery, and light Message
Waiting lamps on 500/2500 sets. The supply provides the following
selectable ringing voltage options: 70/80/86 V ac at 20/25/50 Hz. It is located
in the left of the Module in the slot
labelled
CE/PE Pwr Sup.
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Configuration guidelines
One Common/Peripheral Equipment Power
Supply DC is used in each of the following DC Modules:
Power engineering 553-3001-l 52