Cisco 2811 ROUTER 2FE 1NME 4HWIC 2PVDM 2AIM IP BASE WITH A/C POWER SUPPLY 仕様ガイド

To connect a router to a DC power source, perform the following steps: 

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.

Before performing any of the following procedures, ensure that power is removed from the DC circuit. 
Statement 1003

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

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

Strip the wires to the appropriate length for the terminals. The strip length is 3/16 to 1/4 inch (5 to 6 mm) 
for Amp/Tyco No. 32957 terminals.

Crimp the terminals to the power input and safety ground wires. 

Remove the plastic covers from the terminal block. Save the covers for reinstallation after you finish 
wiring.

Connect the wires to the terminal block, starting with the safety ground wire. Connect each wire to the 
appropriate terminal as shown in 

. Tighten the terminal screws to 8.0 ± 0.5 in-lb 

(0.9 ± 0.05 N-m).

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

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

Do not overtorque the terminal block contact screws. Recommended torque is 8.0 

± 0.5 in-lb 

(0.90

± 0.05 N-m).