Cisco 2900 Series Installation Manual page 104

Connecting Power
Figure 3-20
Install the plastic covers over the terminals. (See
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
Organize and secure the wires using cable ties as shown in Figure 2 or Figure 3. Make sure that the wires
Step 7
do not project above or below the front panel of the router.
Turn on power to the DC circuit. Be sure to remove tape used to secure the circuit-breaker switch in the
Step 8
OFF position.
Figure 3-21
Cisco 2900 and 3900 Series Hardware Installation
3-22
DC Power Connections for Cisco 2911, 2921, and 2951 Routers
-DC, input A
Return, input A
Safety ground
Return, input B
- DC, input B
+ +
A B
2911
Terminal
block
Wire Routing and Attachment for Cisco 2911 Routers
Plastic covers
Chapter 3
+ +
A B
Figure 3-21 or
-
+
+
-
Installing and Connecting the Router
Safety Ground
-DC, input A
Return, input A
Return, input B
-DC, input B
2921/2951
Terminal
block
Figure 3-22.)
Cable tie
From DC
power
source