3Com Router 5000 Family
Installation Guide
Chapter 4 Installation of the Router
3Com Corporation
4-5
Table 4-2
Power input and PGND of other models
Item
Description
Power input
AC model: 100 to 240VAC power input socket
DC model: -48 to -60VDC power input socket
PGND
Connected to the earth ground with ground cable
4.5.2 Connecting AC Power Cord
I. AC power supply
Rated voltage range: 100 to 240VAC, 50 Hz to 60 Hz
The following figure illustrates the partial external appearance of the power socket for a
AC-powered router:
(1)
(2)
~
(1) Power switch
(2) AC input receptacle
Figure 4-4
Partial external appearance of the power socket for the AC-powered router
II. Recommended power outlet
The user is recommended to use a single-phase 3-core outlet with a neutral point or a
multi-functional computer power socket. The neutral point of the outlet should be
grounded reliably. Normally, the neutral point of the power supply system in a building is
buried in the ground during the construction and cabling. The user must make sure that
the power supply for the building is grounded before connecting the AC power cord.
III. Connection of AC power cord
Step 1: Confirm that the PGND wire is correctly connected.
Step 2: Make sure that the power switch for the router is placed in the OFF position.
Then, connect one end of the power cord, which came with the device, to the power
socket on the rear panel of the router chassis, and the other end to the AC power outlet.
Step 3: Press the power switch of the router to the ON position.
Step 4: Check that the Power LED on the front panel is on, which indicates that the
connection of power cord is correct.
