7
MR-913D STATUS INDICATORS
The MR-913D receiver provides the following LED status indicators to aid in installation and
troubleshooting:
DATA TX/RX INDICATORS
DATA TX and DATA RX indicators are provided to monitor each of the three available data channels.
DATA 1 TX and DATA 1 RX correspond with DATA CH 1 input/output. Indicators for Channel 2 and
Channel 3 are also provided. An explanation follows for these DATA TX and DATA RX indicators.
DATA TX
A green LED indicator is provided to monitor the data coming in from the electrical interface, through
the MR-913D, 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. Data transmitted status
associated with this LED is summarized below.
DATA TX LED
Data Status
Green
Data Flow Present
Off
Data Flow Not Detected
DATA RX
A green LED indicator is provided to monitor the data coming in from the fiber, through the MR-913D,
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. Data received status
associated with this LED is summarized below.
DATA RX LED
Data Status
Green
Data Flow Present
Off
Data Flow Not Detected
VLI
A bi-color LED indicator is provided for the video output from the MR-913D. DC power and video status
associated with this LED is summarized below.
Video Presence LED
DC Power Status
Video Status
Green
On
Proper Output Video Present
Red
On
Output Video Not Detected
Off
Off
Check Power Supply
OLI
A bi-color LED indicator monitors the optical input power of the data signal that is being received at the
MR-913D from the MT-913D or the RT-913D. 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
