1100DH High Power Wireless Receiver Installation Guide Digital Monitoring Products
3
1100DH LED Operation
Six LEDs display receiver operation and activity. Refer to the table below as required.
Label Operation
PNL RX Flashes yellow to indicate data is being received from the panel.
PNL TX Flashes green to indicate data is being sent to the panel.
STATUS Steady red to indicate memory upload. Off when upload is complete.
RF RXD Flashes yellow to indicate data is being received from a transmitter.
RF TXD Flashes green to indicate data is being sent to a transmitter.
Transmitter Survey LED Operation
DMP 1100 Series transmitters provide two-way (transmit acknowledge) operation. This advanced data protocol
allows each transmitter to conrm that each of its messages (alarm, checkin, tamper, low battery) are received
and acknowledged by the 1100 Series receiver. The conrmation is indicated visually by use of an LED on each
transmitter. This Survey LED should be used during installation to test each transmitter for proper operation. A full
denition of the Survey LED follows.
The red LED on an 1100 Series transmitter turns on when the processor wakes up to send a message. Then after a
series of communication steps are completed (successful or not), the LED turns off when the processor goes back
to sleep. 99.9% of the time the processor is asleep in normal operation. The following list summarizes various
indications that can be observed on the LED and a denition for each. This is for a single message. Example, pressing
and holding the tamper switch.
Single 1/16 second ash
• Processor wakes up
• Transmitter receives immediate synchronization from receiver
• Transmitter transmits
• Transmitter receives immediate acknowledgement from receiver
• Processor goes to sleep
Single Pulse greater than 1/16 second but shorter than 8 seconds
• Processor wakes up
• Transmitter receives synchronization from receiver - possibly not immediate
• Transmitter transmits
• Transmitter receives acknowledgement from receiver - possibly not immediate
• Processor goes to sleep
Steady for 8 seconds
• Processor wakes up
• Transmitter never receives synchronization from receiver, or might receive synchronization
• Transmitter transmits if synchronization was received
• Transmitter never receives any further data from receiver
• Processor times out and goes to sleep
Multiple short ashes
• Processor wakes up
• Transmitter receives synchronization from receiver
• Transmitter transmits
• Transmitter receives data from receiver, but not a valid acknowledgement
• Processor briey goes to sleep
• Entire sequence is repeated, each short ash indicates a cycle