MCB4
Installation and Operation
POWE
R
ON
MCB4
ANTEN
NA CO
MBINE
R SYS
TEM
440 to 8
65 MH
z
OFF
POWER
ON
MCB4
ANTENNA COMBINER SYSTEM
440 to 865 MHz
OFF
Fig. D—
Front-mount Antenna–Rack Mount Hardware Kit
Antenna not included
7. The included rack-mount hardware kit (includes rack ears and
hardware) is provided to permit attachment in a standard 19" audio
equipment rack.
8. The antenna may be mounted on the front of the long rack ear. The
following parts are included in the kit: Long rack ear; short rack ear;
one BNC bulkhead connector with mounting hardware; one 34"
BNC-to-BNC cable; six rack-mount screws.
Assembling the Rack Mount Hardware Kit
• Remove the nut and lock-washer from the bulkhead connector.
Install the connector
from the front
into one of the two holes in the
long rack ear (see
Fig. D
). Note that the flat on the threaded section
must be aligned with the flat in the panel hole.
• Install the lock-washer and nut (included) over the back of the
bulkhead connector. Secure the connector from the back with its
lock-washer and nut, tightening the nut firmly.
• Connect one end of the provided BNC-BNC cable to the antenna
feed input jack on the back of the MCB4. Attach the other end of
the cable to the back of the BNC bulkhead connector. Make certain
the bayonet twist-ring is
fully
latched on the connector at both ends.
• Finally, mount the transmitter antenna to the BNC bulkhead
connector.
Note:
To mount two MCB4 units side by side in a single rack space,
use Audio-Technica AT8630 Joining-plate Kit.
7
8
1 INPUTS 2
3 4
OUTPUT
+12V DC
600 mA
1 2
ANTENNA FEED
3 INPUTS 4
INPUT
+12V DC
5A
Fig. B—
Front Panel Controls
1. POWER SWITCH: Press switch to apply power to unit. Press again
to turn unit off.
2. POWER INDICATOR: The indicator will light when power is applied.
Fig. C—
Rear Panel Controls
3. INPUTS 1 - 4: BNC isolated transmitter antenna inputs. Maximum
RF input is +20 dBm or 100mW.
4. DC OUTPUT JACKS: Pr12V DC (center positive) at up to
600 mA from each jack to power M3T transmitters.
5. DC POWER INPUT: 3-pin header connector for +12V DC power input.
6. ANTENNA FEED: Attachment point for a standard 50 ohm antenna.
1
3
2
6
4
5
