Cisco 2612 Schnellstart-Handbuch - Seite 16

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Wiring Procedure for Nominal 48 VDC Input

To connect the router to a DC power source, perform this procedure:

Step 1

Remove power from the DC circuit. To ensure that power is removed from the DC circuit, locate the circuit breaker

for the DC circuit, switch the circuit breaker to the OFF position, and tape the circuit-breaker switch in the OFF

position.

Warning

Before performing any of the following procedures, ensure that power is removed from the DC circuit.

Statement 1003

Tip

Secure all power cabling when installing this unit to avoid disturbing field-wiring connections.

Step 2

Strip the wires to the appropriate length for the terminal block on the power supply.

Step 3

Connect the DC power input wires to the terminal block, as shown in Figure 12.

Warning

When stranded wiring is required, use approved wiring terminations, such as closed-loop or spade-type with

upturned lugs. These terminations should be the appropriate size for the wires and should clamp both the

insulation and conductor. Statement 1002

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

Warning

An exposed wire lead from a DC-input power source can conduct harmful levels of electricity. Be sure that no

exposed portion of the DC-input power source wire extends from the terminal block plug. Statement 122

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.

Caution

Do not overtorque the terminal block captive thumbscrew or terminal block contact screws. The recommended

torque is 8.0

Figure 12

DC Power Connections for Cisco 2600XM Series and Cisco 2612 Routers (Typical)

Negative

On/off

Ground

Positive

switch

0.5 inch-lb (0.9

0.05 N-m).

Terminal

block