Make sure the [POWER] switch is turned OFF when
connecting an AC power cable and a backup battery
(emergency power supply).
The IC-FR3000/FR4000 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 repeat to turn 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 (16.4 ft.) 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
• When connecting to the battery, keep in order to con-
nect the DC power cable to the repeater first, then
the positive (red) terminal and negative (black) termi-
nal 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. 17 A of battery
power is consumed.
INSTALLATION AND CONNECTIONS
I Mounting the repeater
D Using the optional MB-78
An optional MB-78
INCH RACK MOUNT BRACKET
available for mounting the repeater into a 19 inch rack.
The MB-78 can install the repeater's bottom side and
• Bottom side installation
q Remove the 2 screws (M4 × 8) from both side of the
side panel (front-end).
w Attach the MB-78 to the bottom side of the repeater.
e Tighten the 1 supplied screws (M4 × 8) and 2 re-
moved screws to each side. (6 screws at total)
r The completed bottom side installation should look