
DOCS-004 Manual, LBV300-6 and LBV600-6 Rev C – 12APR10 Page 6 of 8
1. Power LED – LED ON (GREEN) indicates that the board has 4.5 to 5.5 VDC supply voltage present.
2. Link Ready LED – When LED is on (GREEN) this indicates that there is a valid optical link
established. When off, this indicates that the optical link is lost, e.g. insufficient optical power, or bad frames.
3. Video LED – When LED is on (GREEN) this indicates that there is a valid video signal (sync signal
exist)
4. Channel 1 RS 485 RX IN (RED)
Solid RED indicates “HIGH” state – No Data
Transmission
LED OFF indicates “LOW” state but No Data
Transmission
Blinking RED indicates “NORMAL” state – Data
Transmitting
Channel 1 RS 485 TX OUT (GREEN)
Solid GREEN indicates “HIGH” state – No Data
Transmission
LED OFF indicates “LOW” state but No Data
Transmission
Blinking GREEN indicates “NORMAL” state – Data
Transmitting
5. Channel 2 RS 485 RX IN (RED)
Solid RED indicates “HIGH” state – No Data
Transmission
LED OFF indicates “LOW” state but No Data
Transmission
Blinking RED indicates “NORMAL” state – Data
Transmitting
Channel 2 RS 485 TX OUT (GREEN)
Solid GREEN indicates “HIGH” state – No Data
Transmission
LED OFF indicates “LOW” state but No Data
Transmission
Blinking GREEN indicates “NORMAL” state – Data
Transmitting
6. Channel 3 RS 232 RX IN (RED) LBV
Control.
Solid RED indicates “HIGH” state – No Data
Transmission. Check RS-232 GND Pin 1 connection.
LED OFF indicates “LOW” state – No Data
Transmission Check wire connections
Blinking RED indicates “NORMAL” state – Data
Transmitting
Channel 3 RS 232 TX OUT (GREEN) LBV Control.
Solid GREEN indicates “HIGH” state – No Data
Transmission
LED OFF indicates “LOW” state but No Data
Transmission
Blinking GREEN indicates “NORMAL” state – Data
Transmitting
7. Channel 4 RS 232 RX IN (RED) SONAR
Solid RED indicates “HIGH” state – No Data
Transmission
LED OFF indicates “LOW” state but No Data
Transmission
Blinking RED indicates “NORMAL” state – Data
Transmitting
Channel 4 RS 232 TX OUT (GREEN)
Solid GREEN indicates “HIGH” state – No Data
Transmission
LED OFF indicates “LOW” state but No Data
Transmission
Blinking GREEN indicates “NORMAL” state – Data
Transmitting
1
5
4
6 7
3
2Fiber Transceiver
Power
Connection