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FiberLink 7240 Series User’s Manual
FiberLink 7240 Series
Data Input/Output Connectors
Data Input/Output Connectors
Data terminal block positions 1 through 5 can be used as data inputs or outputs, depend-
ing on the protocol selected . Refer to the following chart:
.
RS-232
Position 1
Signal to be transmitted
Position 3
Signal being received
Posting G
Signal Common
RS-422/RS-485 4-wire (point-to-point or multidrop)
Position 1
Signal to be transmitted (+)
Position 2
Signal to be transmitted (-)
Position 3
Signal being received (+)
Position 4
Signal being received (-)
Posting G
Shield Ground
RS-2485 2-wire
Position 1
Signal being transmitted or received (+)
Position 3
Signal being transmitted or received (-)
Posting G
Shield Ground
