Connecting the Power Cord
25
Connecting the Power
Cord
The MSR 20-20/20-21/20-40 router is available with AC-powered units.
Power Input and PGND
Connecting the AC-input
Power Cord
AC power supply
Rated voltage range: 100 VAC to 240 VAC, 50 Hz/60 Hz
The following figure illustrates the partial external appearance of the power socket
for an AC-powered router:
Figure 11
Power socket on AC-powered units
AC power socket (recommended)
You are recommended to use a three-terminal single-phase power socket with
ground contact, which must be grounded reliably. Normally, the ground contact of
the power supply system in a building was buried during construction and cabling.
Still, before connecting the AC-input power cord, you must make sure that the
power supply of the building is well grounded.
Connecting the AC-input power cord
Step 1: Make sure that the PGND is securely connected to the earth ground.
Step 2: When the power switch of the router is in the OFF position, insert one end
of the power cord accompanying the router into the power socket on the chassis
rear panel, and connect the other end of the cable to an AC power source at your
installation site.
Step 3: Place the power switch of the router to the ON position.
Step 4: Check that the PWR LED on the front panel of the router is on for correct
connection.
Table 16
Power input and PGND of the MSR 20-20/20-21/20-40 router
Item Description
Power input
100 VAC to 240 VAC power input socket
PGND
Connected to the earth ground with ground cable
(1) Power switch
(2) AC input
(1)
(2)
