3Com 5000 Series Installation Manual page 34

3Com Router 5000 Family
Installation Guide
(1) Main label
Figure 4-7 DC power cord
Figure 4-8 DC power cord
Step 1: Confirm that the PGND wire has been correctly connected.
Step 2: Make sure that the power switch of the router is in the OFF position. Then,
connect one end of the DC power cord (including DC PGND connector and –48V power
cord connector), which is shipped with the router, to the power socket on the router
chassis, and the other end (including DC PGND connector and –48V power cord
connector) to the DC power supply.
Warning:
To avoid the connection errors, identify the label on the power cord when connecting
the DC power cord.
Step 3: Place the power switch of the router to the ON position.
Step 4: Check that the POWER LED on the front panel of the router is ON, which
indicates that the connection of the power cord is correct.
TO BGND (1) TO BGND
TO -48V (1)
3Com Corporation
Chapter 4 Installation of the Router
TO -48V
4-7