Cisco 3700 Series Hardware Installation Manual page 65

Chapter 3 Installing the Router
When stranded wiring is required, use approved wiring terminations, such as closed-loop or
Warning
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
Remove the plastic cover from the terminal block. Save it for reinstallation after you finish wiring.
Step 4
Connect the DC power input wires to the terminal block as shown in
Step 5
The illustration shows the DC power supply terminal block. Wire the DC power supply as illustrated.
Warning
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
Do not overtorque the terminal block screws. The recommended torque is 8.0 ± 0.5 in-lb
Caution
(0.9 ± 0.05 N-m).
Figure 3-22
Figure 3-23
Install the plastic cover over the terminal block.
Step 6
The safety cover is an integral part of the product. Do not operate the unit without the safety cover
Warning
installed. Operating the unit without the cover in place will invalidate the safety approvals and pose
a risk of fire and electrical hazards. Statement 117
Secure the wires using cable ties.
Step 7
OL-2180-08
Terminal Block Connections for Negative Polarity DC Input Power in Cisco 3745 Router
Negative polarity input
0V (return)
Safety ground
Terminal Block Connections for Positive Polarity DC Input Power in Cisco 3745 Router
0V (return)
Positive polarity input
Safety ground
Figure 3-22
Cisco 3700 Series Routers Hardware Installation Guide
Power Connections
or Figure 3-23.
3-19