Daktronics AF-3080-68-R,A - Manual (Page 51)

Fiber Board
The fiber module has three
LEDs. The power LED (DS1)
should remain lit while power
is applied to the module. The
receive LED (DS2) will flash
when the display fiber board
is accepting signal from the
computer fiber board. The
transmit LED (DS3) will
flash when the display fiber
board is sending to the fiber
signal converter. In addition,
the fiber module has two
input fiber connectors, which
the signal converter or the
previous display connects to,
and two output fiber
connectors that connect to the
next display. The fiber board
connects to the controller
board with a small DB9
adapter and straight through
RJ11 cable.
Figure 40: Fiber Board
To replace a fiber optic board:
1. Disconnect the power and signal connections (refer to Figure 40 above for
disconnection of power).
2. The fiber optic board is held in place with four 3/16" screws. Carefully
remove them.
3. Install the new fiber optic board, replace the screws, and reconnect power
and signal cables.
RS422 Surge Suppressor
Figure 41: Surge Suppressor, RS422
1. Disconnect the signal connections
(Refer to Figure 41 on the right).
2. The surge suppressor is held in place
with four screws. Carefully remove
them.
3. Install the new surge suppressor,
replace the screws, and reconnect
power and signal cables.
Maintenance and Troubleshooting
4-9