3
For mounting the unit flush to a wall or other rigid surface, the
ears may be installed on the sides with the oval holes flush with
the bottom of the unit as in Figure 2. Mount the ears with the #10
flathead screws provided. Mount the unit to a rigid surface using
#10 (5mm) screws.
POWER SOURCE
The internal power supply accepts universal line voltage. Any mains supply from 100 to 240 VAC, 50 to
60 Hz, may be used without modification or adjustment. A universal power connector is provided on the
rear of the unit to facilitate connection to the power mains.
POWER CONNECTION
The unit is supplied (in the US and UK only) with a three conductor power cord. The “ground” conductor
is directly connected to the chassis.
INPUT / OUTPUT CONNECTIONS
The fiber optic connection is made via a ST connector located on the back of the unit. Be sure to allow
sufficient room for the required minimum bend radius of the fiber cable used.
Video input and output connections are located on the rear of the unit. A BNC connector is provided for
each channel. The video inputs are connected to an appropriate 75
Ω
baseband video source such as a
camera or a video recorder output. The 75
Ω
video outputs can be looped through typical baseband
video inputs of switchers, recorders and other equipment as required. For proper operation, the outputs
must be terminated with 75
Ω
. For optimum performance the video cables should be the shortest length
of coax practical.
MRT-840C STATUS INDICATORS
The MRT-840C transmitter provides the following front panel LED status indicators to aid in installation
and troubleshooting:
VIDEO
A bi-color LED indicator is provided for each of the four video channel inputs. AC power and video
status associated with each of these LEDs are summarized below.
Video Presence LED
AC Power Status
Video Status
Green
On
Proper Input Video Present
Red
On
Input Video Not Detected
Off
Off
Check Power Supply Input
