Cisco 2612 Hardware Installation Manual page 63

Hardware installation guide
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Chapter 3
Installing the Router
Wiring Procedure for DC Input
To connect the router to a DC power source, perform this procedure:
Remove power from the DC circuit. To ensure that power is removed from the DC circuit, locate the
Step 1
circuit breaker for the DC circuit, switch the circuit breaker to the OFF position, and tape the
circuit-breaker switch in the OFF position.
Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Warning
Statement 1003
Secure all power cabling when installing this unit to avoid disturbing field-wiring connections.
Tip
Strip the wires to the appropriate length for the terminal block on the power supply.
Step 2
Connect the DC power input wires to the terminal block, as shown in
Step 3
Warning
The illustration shows the DC power supply terminal block. Wire the DC power supply as illustrated.
The proper wiring sequence is ground to ground, positive to positive, and negative to negative. The
ground wire should always be connected first and disconnected last. Statement 239
Caution
The terminal arrangement on your router may not be identical to the arrangement shown in the figures.
You must connect the positive, negative, and ground wires according to the labels on the terminals.
Do not overtorque the terminal block captive thumbscrew or terminal block contact screws. The
Caution
recommended torque is 8.0 ± 0.5 inch-lb (0.93 ± 0.05 N-m).
The 2600XM DC power supply is reverse connection protected. There are no negative effects if input
Note
power leads are connected backwards except that the router will not boot up.
Figure 3-22 DC Power Connections for Cisco 2600 Series Routers (Typical)
On/off
switch
Secure the wires using cable ties.
Step 4
Turn on power to the DC circuit.
Step 5
OL-2171-06
Negative
Ground
Positive
Terminal
block
+
-
Figure
Cisco 2600 Series Routers Hardware Installation Guide
Power Connections
3-22.
3-17

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