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MRM-1485 STATUS INDICATORS
The MRM-1485 receiver provides the following LED status indicators to aid in installation
and troubleshooting:
OLI
A bi-color LED indicator monitors the optical input power of the video and data signal
that is being received at the MRM-1485 from the MTM-1485 or the RTM-1485. DC
power and optical input status associated with this LED are summarized below.
Optical Level Indicator
Green
Red
Off
DATA TX
A red LED indicator is provided to monitor the RS485 input data from the electrical
interface, through the MRM-1485, and out onto the fiber. The intensity of this indicator
will vary with input data patterns, however in typical applications it will cycle on and off
as data is transmitted. RS485 status associated with this LED is summarized below.
DATA TX LED
Red
Off
DATA RX
A red LED indicator is provided to monitor the RS485 data coming in from the fiber,
through the MRM-1485, and out onto the electrical interface. The intensity of this
indicator will vary with input data patterns, however in typical applications it will cycle on
and off as data is received. RS485 status associated with this LED is summarized
below.
DATA RX LED
Red
Off
DC Power Status
On
On
Off
RS485 Status
Data Flow Present
Data Flow Not Detected
RS485 Status
Data Flow Present
Data Flow Not Detected
6
Optical Status
Proper Optical Input Power Present
Optical Input Not Detected
Check Power Supply
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