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Sure-Fi Serial Data Bridge
Jumpers JP1 and JP2 (REMOTE INTERFACE ONLY)
Jumpers JP1 / JP2 are used to connect the relay COM terminal to either GND or +VBUS. Connecting the
jumper to the +VBUS creates a wet relay contact that can be used to source power to a device. JP1 is for Relay
1, JP2 is for Relay 2. Figure 4 shows the pinout of JP1/JP2. Use the supplied Jumper to connect the common
terminal to either the Ç (GND) or the +(VBUS) pins if required for the desired Application. The + VBUS is the
same voltage that is present on the power input at the +12VDC input, or if the Backup battery is in use, on
BAT+. The Remote Interface is delivered with the supplied Jumpers on JP1 and JP2 set for a dry relay (COM
not connected to either GND or +VBUS), see Figure 5.
Figure 3: JP1 / JP2 Pinout
(Remote interface only)
Figure 4: Schematic diagram of the Power Input, +VBUS, and JP1/JP2 connection
