American Fibertek MT-91P558 - Manual (Page 7)

7
MT-91P558 STATUS INDICATORS
The MT-91P558 transmitter 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 available data channels. DATA
1 TX and DATA 1 RX correspond with DATA CH 1 input/output. Indicators for Channel 2 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 MT-91P558, 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 MT-91P558,
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
AUDIO TX
A green LED indicator is provided to monitor the audio coming in from the electrical interface, through
the MT-91P558, and out onto the fiber. The intensity of this indicator will vary with input audio levels,
however in typical applications it will cycle on and off as audio is transmitted. Audio transmission status
associated with this LED is summarized below.
AUDIO TX LED Audio Status
Green Audio Present at Proper Signal Level
Off Audio Signal Not Detected
AUDIO RX
A green LED indicator is provided to monitor the audio coming in from the fiber, through the MT-
91P558, and out onto the electrical interface. The intensity of this indicator will vary with input audio
levels, however in typical applications it will cycle on and off as audio is received. Audio received status
associated with this LED is summarized below.
AUDIO RX LED Audio Status
Green Audio Present at Proper Signal Level
Off Audio Signal Not Detected
VLI
A bi-color LED indicator is provided for the video input to the MT-91P558. DC power and video status
associated with this LED is summarized on the next page.