Multi System Installation; Multi Room Performance - NDS ZERO WIRE DUO Manual De Instrucciones

Multi System Installation

Multiple Systems:
When two or three systems are installed in a given OR if the Tx and Rx units have not been bonded apply
power to one Tx and one Rx then follow the Bonding Procedure described on page 8. Turn second Tx and
Rx pair on and repeat the Bonding Procedure. Turn on the third pair and repeat the Bonding Procedure.
Tx and Rx pairs must be bonded one pair at a time. We recommend that bonded pairs be labeled to
facilitate installation and troubleshooting.
Zerowire transmitters should be separated by at least 0.5 meters (20 inches). ZeroWire transmitters (Tx) or
receivers (Rx) should not be installed in metal cabinets or surrounded by metallic objects, as this will
prevent the Tx from communicating with the Rx.
Note: ZeroWire has three channels, therefore no more than three Tx / Rx pairs can be installed in an OR.

Multi Room Performance

Same Channel Reuse:
A given channel may be used in multiple OR's provided that the separation between systems is great
enough that the Rx of one system does not detect the Tx of another system (crosstalk). The likelihood of
crosstalk occurring is greatly reduced or eliminated by obstacles such as:
1. A wall separating the rooms.
2. Materials the wall is constructed from and its thickness.
3. Finish applied to the wall.
4. Metallic pipes routed inside the wall.
If same channel reuse is intended for rooms separated by a metal door, we recommend that the links be
separated by at least 10 meters.
Operation of a given ZeroWire system for room to room communications is not recommended and
not supported.
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