Clear-Com Tempest900 - Manual (Page 63)

57 Tempest®900 2-Channel Wireless Intercom System
Connecting Multiple BaseStations
Tempest BaseStations may be used together to form large wireless
systems, and may include external wired intercom systems. Intercom
audio for any or all channels can be linked across multiple BaseStations.
Audio from one BaseStation can be passed via a 2-Wire connection
to another BaseStation, if they are to share a single channel of audio.
Through this method, many complex combinations of intercom channels
can be achieved.
All RF devices have the potential to cause interference. Therefore,
Tempest offers a synchronizatoin option, Accu-Sync™, that is designed
to minimize potential interference when using multiple BaseStations.
Accu-Sync is included with every Tempest BaseStation and uses the Accu-
Sync connections on the back of the BaseStation to synchronize multiple
BaseStations together. See the Accu-Sync section on for more information on
using Accu-Sync.
Tempest includes a Master Mode which provides required audio power when only Tempest BaseStations are linked without
external intercom. See the Master Mode section.
A multi-base system will generally utilize Tempest Remote Transceivers to distribute the wireless signal, sometimes
extending the number of users by overlapping the wireless coverage area, and sometimes extending the wireless range
with the iSelect Roaming feature. In this application, always try to separate antennas by at least 10 feet whenever possible.
A 4-Wire matrix intercom system may be configured to connect to multiple Tempest BaseStations so that all share the
same channels. Configure each BaseStation individually as described in 4-Wire (Matrix) Intercom Interface. The following
information relates to multiple BaseStation configurations without a matrix system.
If intercom channels are connected across multiple BaseStations without connection to an
active 2-Wire intercom, one of the BaseStations must be placed into Master Mode.
If multiple BaseStations are linked on a common audio channel, each BaseStation must
be nulled separately. Null one BaseStation at a time.