Specifications

2-18 Cisco 2500 Series Hardware Installation
Connecting the DC-Input Power Supply
Caution To prevent damage to the system, make certain you connect the BRI cable to the
BRI connector only and not to any other RJ-45 connector. The console, auxiliary, BRI, and
hub ports all use RJ-45 connectors.
Step 10 Using an M 3.5 thread-forming screw (not included), attach a ground wire to the
protective grounding terminal on the chassis rear panel, as required by your
installation. (See Figure 2-14.)
Step 11 Connect the power cable between the router and the AC source.
Connecting the DC-Input Power Supply
This section describes the Cisco 2500 series direct current (DC) power supply
specifications and wiring. This procedure covers the following information:
• DC Power Specifications
• Wiring the DC-Input Power Supply
Read this entire section before wiring the power supply.
DC Power Specifications
The Cisco 2500 DC-input power supply is intended for use in DC operating environments.
Table 2-1 lists the power supply specifications.
Table 2-1 Cisco 2500 DC-Input Power Supply Specifications
1. AWG—American Wire Gauge
Description
Design
Specification
Power 40W, -40 to -72 VDC
Wire gauge for power connections 14 AWG
1