Cisco 2900 series Installation Manual page 109

Chapter 3 Installing and Connecting the Router
This unit might have more than one power supply connection. All connections must be removed to
Warning
de-energize the unit. Statement 1028
Table 3-3
For Cisco 3945 and Cisco 3945-NOVPN routers, the safety ground wire connection must be at the same
Note
potential as the 0 V (return) connection.
Table 3-3
DC Power Input
24-36 VDC, 12 A,
positive or negative,
single source or dual
sources
36-60 VDC, 8 A,
positive or negative,
single or dual source
OL-18712-01
summarizes DC wiring requirements for all Cisco 3925 and Cisco 3945 routers.
DC Wiring Requirements for Cisco 3900
DC Input
Wire Size
AWG 10
Safety Ground Wire Terminal
Wire Size (Lug)
AWG 10 Panduit No.
minimum LCAS8-10F-L
Cisco 2900 and 3900 Series Hardware Installation
Connecting Power
Overcurrent
Protection
30 A maximum
3-25