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11
FG7C CONTROLLER: COMMUNICATION BOARDS
THE RS485/TAUTWIRE/TTL COMMUNICATION BOARD
JUMPER SETTINGS COMMUNICATION BOARD
Jumper setting as viewed with connectors at the bottom.
TTL Serial JP1 (2) Down if serial TTL is selected (For Nemlink communication)
Up if RS 485 or RS 232 communication is required
Line Bias JP3 (2) Up to have line bias (star configurations)
Down for no line bias (daisy chain configuration)
LED’S ON COMMUNICATION BOARD
LED1 If flashing, indicates transmission of data from RS485 or TTL lines to
the control unit.
LED2 If flashing, indicates receiving of data from the control unit to the
RS 485 or TTL lines
LED3 If flashing, indicates receiving of data from the taut wire to the control
unit
LED4 If flashing, indicates transmission of data from the control unit to the
taut wire
CONNECTORS
Con 1 Ribbon cable connection to Con1 of display board
Con 2 Ribbon cable connection to Con2 of display board
J1 Two way connector for 12Vdc supply
J2 Four way connector for TTL connection to a Nemlink card