3
MR-780C STATUS INDICATORS
The MR-780C receiver provides the following LED status indicators described below to aid in
installation and troubleshooting:
af i
american fibertek
VLI 1 THROUGH VLI 8
A bi-color LED indicator is provided for each of the eight video outputs of the MR-780C. DC
power and video status associated with each of these LED’s are 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-780C from the MT-780C or the RT-780C. 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
SYNC
A bi-color LED indicator is provided to monitor the proper serialization of the electrical data
stream through the MR-780C and out onto the fiber. DC power and sync status associated with
this LED is summarized below.
Sync LED
DC Power Status
Sync Status
Green
On
Proper Data Stream Serialization Present
Red
On
Data Stream Serialization Not Detected
Off
Off
Check Power Supply
