Cisco 3845 - Security Bundle Router Quick Start Guide

19
Step 5 Connect the wires to the terminal block, starting with the safety ground wire. Connect each wire to the appropriate
terminal as shown in Figure 12. Tighten the terminal screws to 10.0 ± 0.5 in-lb (1.1 ± 0.05 N-m).
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 Do not overtorque the terminal block screws. The recommended torque is 10.0 ± 0.5 in-lb (1.1 ± 0.05 N-m).
Figure 12 DC Power Connections for Cisco 3825 Routers (Typical)
Figure 13 DC Power Connections for Cisco 3845 Routers
Step 6 Install the plastic safety covers over the terminals. (See Figure 14 or Figure 15.)
Warning The safety cover is an integral part of the product. Do not operate the unit without the safety cover 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
Step 7 Organize and secure the wires using cable ties as shown in Figure 14 or Figure 15. Make sure that the wires do not
project above or below the front panel of the router.
Step 8 If a second power supply is installed and intended for use, repeat Step 1 through Step 7 for the second power supply.
Step 9 Turn on power to the DC circuit. Be sure to remove tape used to secure the circuit-breaker switch in the OFF position.
111752
A
+
B
+
A ++B
Terminal
block
Negative DC input Positive DC input
Terminal
block
-DC, input B
Return, input B
Safety ground
Return, input A
-DC, input A
Return, input B
+DC, input B
Safety ground
+DC, input A
Return, input A
117981
0V (return)
Negative polarity input
Safety ground
Positive polarity input
0V (return)
Safety ground
24-60 19-8 A 24-60 19-8 A
Positive DC input
Negative DC input

Cisco 3845 - Security Bundle Router Specifications

General

Brand	Cisco
Model	3845 - Security Bundle Router
Category	Switch
Language	English