8
2
INSTALLATION AND CONNECTIONS
■ Power
Make sure the [POWER] switch is turned OFF when
connecting an AC power cable and a backup battery
(emergency power supply).
The IC-FR3100/FR4100 series can operate with an AC
or DC power supply. If AC power is interrupted when
operating the repeater with an AC power supply, power
is automatically provided to the [BATTERY] terminals.
NOTE: When repeatedly to turning the repeater ON
and OFF quickly, the repeater may not turn ON. In
this case turn OFF the power switch and wait for a
while, then turning power ON again.
D In AC operation
• The [DC] indicator turns OFF.
• Use the supplied AC power cable for connection to a
domestic AC outlet.
• Extension cords should not be used unless ab-
solutely necessary. Using improper extension cords
could result in fire risk.
• Usually the battery is continuously charged with a
small amount of current from an AC power supply
through the regulator circuit in the repeater. Dis-
charging is therefore prevented even if the battery is
not used for a long time.
D In DC operation
CAUTION: Voltages greater than 16 V DC will dam-
age the repeater. Check the source voltage before
connecting the power cable.
• The [DC] indicator lights up green.
• DO NOT place the backup battery on or near the re-
peater. Lead-acid batteries should be placed at least
5 m away from the repeater. Use a heavy duty cable
to make the connection and be sure both the positive
(red) and negative (black) terminals are correctly con-
nected.
• Connect cables to the battery in the following order.
Connect the DC power cable to the repeater first,
then the positive (red) terminal and negative (black)
terminal to the battery to prevent an electric shock.
• After the battery is connected and the [POWER]
switch is ON, the repeater continuously supplies ap-
prox. 1 A for charging the battery. If the repeater
stops functioning while connected to the battery, dis-
connect the battery, recharge it, then connect the bat-
tery to continue operation after the battery is charged.
During repeater transmission, approx. 15 A of battery
power is consumed.
■ Mounting the repeater
D Using the optional MB-78
An optional MB-78 19
INCH RACK MOUNT BRACKET
is
available for mounting the repeater into a 19 inch rack.
The MB-78 can install the repeater’s bottom side and
top side.
• Bottom side installation
q Remove the 2 screws (M4 × 8) from both sides of
the side panel (front-end).
w Attach the MB-78 to the bottom side of the repeater.
e Tighten the supplied screws (M4 × 8) and the 2
screws removed in step q to each side. (6 screws
in total)
r The completed bottom side installation should look
like this.
