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D400 Substation Data Manager User's Manual 37
IRIG-B Input Adapter
Switch SW2 Configuration
Switch SW2 controls the signal option for the selected state option (SW1). It contains
three switch positions that can be set to ON or OFF to select the appropriate signal.
IRIG-B Input Card Switch SW2 Settings
SW2 Switch Positions
Input Signal Option
1 2 3
Fiber Optic (RX) ON OFF OFF
TTL (TB1) (default) OFF ON OFF
BNC (J2) OFF OFF ON
Switch SW3 Configuration
Switch SW3 controls the state option for the IRIG-B fiber optic TX input. It contains two
switch positions that can be set to ON or OFF to select the appropriate state.
IRIG-B Input Card Switch SW3 Settings
SW3 Switch Positions
Fiber Optic TX Option
1 2
Fiber RX (default) ON OFF
Inverted OFF ON