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Opto connectors type HP Versatile Link can handle both plastic and HCS optic
fiber.
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X1B - 1 L+ +24V d.c. Supply In
X1B - 2 L+ +24V d.c. Supply Out
X1B - 3 SA Redundant Power Supply “A”
Monitoring Input
X1A - 1 L- 0V d.c. Supply In
X1A - 2 L- 0V d.c. Supply Out
X1A - 3 SB Redundant Power Supply “B”
Monitoring Input
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X4 - Tx Transmit data to down-stream
device
Transmit data to next
device
X4 - Rx Receive data from down-
stream device
Not used
X5 - Tx Transmit data to up-stream
device
Not used
X5 - Rx Receive data from up-stream
device
Receive data from last
device