NEXUS CALL SYSTEM
by Rondish
P11
1.2.1 Receiver Dongle & Over-Door Lights
Over-Door lights (ILB-21) receive local signals from a variety of calling units, and can either be configured
as lights/sounder by reading into memory the calling unit, or configured as basic signal repeaters to extend
system coverage. The ILB-21 communicates with a Receiver Dongle (DON-30) plugged into a Rugged
Tablet (NDP-21), Nexus Control Box (TVB-21), or Nexus Junction Box (NCON-11).
When used as a range extender the ILB-21 transmitter uses LoRa on a separate 400MHz channel to the
calling device. When connecting the ILB-21 you can trigger a range by touching a magnetic key to the
program point
–
this reduces the signal by 3bB to ensure the connection is secure. The open-air ranges
of the devices are shown on the diagram below.
The ILB-21 can be battery operated with a standby life of 18 months
–
ideal for a fast deploy or bathroom
alarms
–
or powered from a 12V supply with batteries used as backup.
Содержание Nexus Call System
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