CHAPTER 3: SETTING UP COMMUNICATION CARDS
Switch SW2 configuration
D400 SUBSTATION GATEWAY USER'S MANUAL
Leave switch SW1 in the Standard position as it is required for the D400 to properly decode
and set the system time.
Figure 21: IRIG-B Input Adapter
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.
Table 9: IRIG-B Input Card Switch SW2 Settings
Input Signal Option
Fiber Optic (RX)
TTL (TB1) (default)
BNC (J2)
SW2 Switch Positions
1
ON
OFF
OFF
GENERAL
IRIG-B INPUT ADAPTER
2
3
OFF
OFF
ON
OFF
OFF
ON
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