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Status warning LED
⑥
LED status signal on RX
LED
1 fl ash per second
2 fl ashes per second
3 fl ashes per second
4 fl ashes per second
③
Operation on TX signal
Photocell pairs
1 synchronised pair
2 or more synchronised
pairs
⑦
Active output on RX signal
LED
On
Off
RX-TX photocell alignment
Slow fl ash
TX1
TX1
weak
suffi cient
good
excellent
Quick fl ash
-
from TX2 to TX8
Message
Output idle
Output active
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