10
Analog (4-20mA) Wiring
Likewise, if the Analog signal is required to drop to zero (0 current) when RF Link
is lost, it can be wired in series to the RF Link Output in this fashion.
Note: Either the discrete Outputs or the Analog can be wired through the RF Link
contacts but not both.
Maximum OFF voltage for the discrete input is 60VAC. Use of a 2Watt 10k ohm
resistor at 110VAC in parallel across the input will help ensure minimum and
maximum ON and OFF states.
Adding an Extra or Spare Receiver to Your System
1)
Remove the HopKey from the existing Receiver by the divots on either side
of the enclosure and remove the circuit board (refer to the photographs
below). Remove the HopKey and re-insert the circuit board into its
enclosure. When re-inserting, line up the terminal labels on the side of the
enclosure with the terminal labels on the top of the circuit board to prevent
it being installed backward.
2)
Remove the spare Receiver from its enclosure.
3)
Insert the HopKey from the original Receiver into the spare Receiver. Re-
insert the circuit board into the enclosure.
Once power is applied to the spare Receiver, it will memorize the identifi cation,
hop frequencies and hop sequence of the Transmitter. This takes a few seconds
upon power up. If power is removed, it will retain this information, even if the
HopKey is removed. Now your spare Receiver, along with the original Receiver, will
respond to signals from the Transmitter. Ensure you are using an Omni-directional
antenna at the Transmitter if the Receivers are off in different directions, since Yagi-
directional antennas only send radio signals in one direction.
