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26 | Set up and Installation
4.11 Avoiding Co-Channel Interference
If the ZEROWIRE® G2 deployment is a typical one-system per room, there are essentially no restrictions. The
transmitter’s Channel Selection feature picks the channel that is least susceptible to interference from the two
available channels based on the result of its scan at power on.
Some of the factors affecting isolation of the ZEROWIRE® G2 channels are listed below.
1. The thickness and material of the room walls.
2. The opening and closing of room doors.
3. The room’s ceiling structure and the materials used in its construction.
NOTE!
Cross room operation is not supported.
ZEROWIRE® G2 Transmitter/Receiver pairs must be installed in the same room .
When two Transmitter/Receiver pairs are installed in a given room, each pair must be linked
separately, one pair at a time, linking the second pair after successfully linking the first.
There is no need to turn off the first linked pair before powering or linking the second pair.
4.12 Channel Usage
The recommendations listed below should be used to determine the appropriate setting.
1. ZEROWIRE® G2 Transmitter and/or Receiver units cannot be used with earlier ZEROWIRE® G2 Transmit-
ter and/or Receiver units .
2. A maximum of two ZEROWIRE® G2 systems may be operated in the same room. The transmitters and re-
ceivers should be separated by at least 3 feet (1 m) within the room.
3. Groups of two ZEROWIRE® G2 systems may be set in multiple rooms, providing the rooms are spaced at
least 25 feet (7.6 m) apart.
4. ZEROWIRE® G2 Transmitter and/or Receiver should not be installed in metal cabinets or surrounded by
metallic objects , as this will prevent the Transmitter from communicating with the Receiver.
4.13 Multi System Installation
When two systems are to be installed in a given OR use the following procedure:
1. If the Transmitter and Receiver units have not been linked, apply power to one Transmitter and one Re-
ceiver then follow the Linking Procedure described in Setup [
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19].
2. Turn the second Transmitter and Receiver pair on and repeat the Linking Procedure . Transmitter and Re-
ceiver pairs must be linked one pair at a time . We recommend that linked pairs be labeled to facilitate in-
stallation and troubleshooting.