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Chapter 2
Cisco ASR 1000 Series Routers Component Overview
Cisco ASR 1002 Router +24 VDC Power Supply
This section provides information about the +24 VDC power supplies on the rear of the Cisco ASR 1002
Router. The recommended branch circuit breaker for the Cisco ASR 1002 Router +24 VDC power
supply is a 40 A UL listed circuit breaker.
The Cisco ASR 1002 Router has two of the same type power supplies in power supply slot 0 and power
supply slot 1. The power supply slot identifiers are zero (0) on the left side of the chassis rear and one (1)
on the right side of the chassis rear. The power supply switch is a standby switch and is not considered
a disconnect.
The +24 VDC power supply uses a spring-loaded terminal block. The input terminal block requires
maximum 8AWG multi-strand wiring to support input current. The terminal block is compliant with
safety agencies' guidelines and electrical requirements of the supply. Use the tie wraps to dress the input
cable wires; there are two tie wrap tabs on the +24 VDC power supply. The +24 VDC power supply unit
is secured into the system chassis with two captive screws mounted on the faceplate.
Cisco ASR 1002 Router +24 VDC Power Supply LEDs and Connector
Figure 2-13
ASR 1002 Router supports two +24 VDC power supplies.
Figure 2-13
0
7
1
2
3
4
5
The +24 VDC power supply product is labeled at +27 VDC input because the typical battery float voltage
Note
is +27V; but generically, these power systems can be labeled +24 V and referred to as +24 VDC (see
Figure
OL-13208-11
shows the +24 VDC power supplies at the rear of the Cisco ASR 1002 Router. The Cisco
Cisco ASR 1002 Router Rear View With +24 VDC Power Supply
5
6
OUTPUT INPUT
FAN
FAIL
OK
OK
This unit might have more than
one power supply connection.
All connections must be removed
to de-energize the unit.
+27V DC INPUT
+27V
32A
8
1
2
3
4
+24 VDC terminal block
Positive (+) lead
Negative (-) lead
Ground (GND) lead
Power supply LEDs
2-14).
Cisco ASR 1000 Series Aggregation Services Routers Hardware Installation Guide
9
6
Standby/On switch
7
Captive fastener
8
Power supply tabs
9
+27 VDC INPUT label
— —
Power Supplies for the Cisco ASR 1002 Router
7
OUTPUT INPUT
FAN
FAIL
OK
OK
This unit might have more than
one power supply connection.
All connections must be removed
to de-energize the unit.
+27V DC INPUT
1
+27V
32A
8
2-41
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Troubleshooting
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