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RAD-ISM-900-UD Receiver Block Diagram
Receiver Indicator LEDs
RF LED
- Flashes once every two seconds when transmitter is OFF or out
of range.
- Flashes rapidly when signal strength is marginal.
- Solid green when a secure link is established.
LEDs 1 & 2
- Show status of discrete inputs 1 & 2. Solid green = ON.
RF Link: Internal dry contact Form C relay. May be wired as Normally Open (NO)
or Normally Closed (NC). This relay is activated when a good Radio (RF) Link is
established between the Receiver and its matched Transmitter and Receiver. This
discrete output defaults to the normal position as shown in the Receiver Block
Diagram.
Discrete Outputs 1 & 2: Internal dry contact Form C relays. May be wired as NO
or NC. These relays are activated when voltage is applied to Discrete Inputs 1 &
2 at the Transmitter. DEFAULT STATE: When Link is lost between the Transmitter
and Receiver, these discrete outputs MAINTAIN LAST STATE.
Analog Output: The 4-20mA Current Output replicates the status of the 4-20mA
Current Input at the Transmitter. DEFAULT STATE: When Link is lost between
Transmitter and Receiver, the analog output MAINTAINS LAST STATE.
