American Fibertek RRM-1400 User Manual
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VIDEO OUTPUT CONNECTION
The video output connection is made via a BNC connector on the back of the unit. The 75
Ω
video output
can be looped through typical baseband video inputs of switchers, recorders and other equipment as
required. For proper operation, the output must be terminated with 75
Ω
. For optimum performance the
video cables should be the shortest length of coax practical.
FIBER CONNECTION
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.
DATA INPUT / OUTPUT CONNECTIONS
Data input/output connections are made via a terminal block on the back of the unit. An example of the
RS422 interconnection between the RRM-1400 series unit and the copper device to which it is attached is
shown below. This illustration is based on industry standard EIA terminology for the transmission of
electronic data signals. Using this terminology, the driver of an electronic signal is labeled TX or data out.
Correspondingly, the receiver of an electronic signal is labeled RX or data in. Not all manufactures follow
standard EIA terminology. Consult the installation instructions for your copper device if you are unsure
which two wires are the drive (data out) wires and which two wires are the receive (data in) wires.
Please note that Data In on the RRM-1400 becomes Data Out on the MTM-1400 or RTM-1400 after going
across the fiber. The reverse flow follows the same orientation.
RRM-1400 STATUS INDICATORS
The RRM-1400 provides the following LED status indicators to aid in installation and troubleshooting:
OLI
A bi-color LED indicator monitors the power of the optical input signal that is being received at the RRM-
1400 from the MTM-1400 or the RTM-1400. DC power and optical input status associated with this LED are
summarized below.
Optical Level Indicator
DC Power Status
Optical Status
Green
On
Proper Optical Input Power Present
Red
On
Optical Input Not Detected
Off
Off
Check Power Supply