American Fibertek MRX-8889C-SL - Manual (Page 8)

8
MTX-8889C-SL STATUS INDICATORS
The MTX-8889C-SL transmitter provides the following front panel LED status indicators to aid in
installation and troubleshooting:
DATA
These indicators turn green when any data activity is present. An active DATA TX LED indicates
data is present at the input terminals to the MTX-8889C-SL. An active DATA RX LED indicates
data is present at the output terminals of the MTX-8889C-SL. When configured for contact
closure, the Tx and Rx LEDs will be off to indicate contact open and on to indicate contact
closed. When configured for RS-485, an active Hi-Z LED indicates the MTX-8889C-SL has
seized the data line to allow data flow. The intensity of the indicators will vary with input data
patterns, however, the Hi-Z LED will typically appear dimmer than the data Tx and Rx LEDs.
The data channels associated with these front panel DATA LEDs are listed below.
Configuration Protocol DATA 1 TX DATA 1 RX DATA 2 TX DATA 2 RX
RS485 RS485 Tx RS485 Rx Hi-Z Hi-Z
RS422 RS422 Tx RS422 Rx Not Used Not Used
Contact Closure Not Used Not Used Contact State Contact State
RS422/Contact Closure RS422 Tx RS422 Rx Contact State Contact State
OLI
A bi-color LED indicator monitors the optical input power of the data signal that is being
received at the MTX-8889C-SL from the MRX-8889C-SL. AC power and optical input status
associated with this LED are summarized below.
Optical Level Indicator AC Power Status Optical Status
Green On Proper Optical Input Power Present
Red On Optical Input Not Detected
Off Off Check Power Supply Input
VIDEO
A bi-color LED indicator is provided for each of the eight video channel inputs. AC power and
video status associated with each of these LEDs are summarized below.
Video Presence LED AC Power Status Video Status
Green On Proper Input Video Present
Red On Input Video Not Detected
Off Off Check Power Supply Input