CoachComm Tempest User Manual

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The Tempest® 2.4GHz Multi-BaseStation Guide

Brief Review of the Tempest Multi-BaseStation

Overview

The Tempest 2.4GHz system is designed to work together to provide a scalable solution for real world wireless
communications.

Connections

Sync. When using multiple Tempest 2.4GHz BaseStations, it is imperative that all the BaseStations share a
common sync source.

No sync. This is not recommended for any Tempest 2.4GHz installation using two or more BaseStations.

With no sync source present, the BaseStations will not be coordinated in time or frequency, which can cause
poor RF performance.

Accu-Sync. Accu-Sync is provided by simply connecting the Tempest 2.4GHz BaseStation ‘Base Sync Out’ of
the first BaseStation to the ‘Base Sync In’ of the next Tempest 2.4GHz BaseStation of that sequence.
Continue to connect ‘Base Sync Out’ of one BaseStation to ‘Base Sync In’ on the next BaseStation until all
collocated Tempest 2.4GHz BaseStations are connected in this fashion. Accu-Sync provides synchronization
only in the time domain, meaning that all connected BaseStations will be transmitting at the same time,
helping to prevent harmful desensing. However, there is no synchronization of frequency(s) that can lead
to a variation in performance, from power up to power up.

ZSync™. ZSync requires the same connections as Accu-Sync, with the addition of connecting a ‘ZSync
Dongle’ to the first BaseStation in a system with Accu-Sync cables already connected, or ‘Parallel Sync
Generator’ to the ‘Sync’ input of all BaseStations in a system. ZSync provides synchronization in both the
time and frequency domain, meaning that all connected BaseStations will be transmitting at the same time
on coordinated frequencies, allowing a total of 11 collocated bases.

! Never connect any Sync from a 2.4GHz system to a 900MHz Tempest system

External Hardwire Com

2-wire. Using the Parallel 3-pin XLR connectors on the BaseStation, any Clearcom Partyline, RTS Partyline*,

or AudioCom Balanced Partyline can be cascaded to all of the 2.4GHz Collocated BaseStations. (*Reminder,
an RTS 2CH Party line connected to Tempest 2.4GHz BaseStation “Channel A” XLR connector will
automatically be assigned to Tempest 2.4GHz Channels A and B.)

4-wire. Using the RJ-45 connectors on the BaseStation, any analog 4-wire signal can be connected directly
to any of the BaseStations four talk channels. These connections provide a simple, discrete connection for
integration with large matrix style intercom systems, 2-wire/4-wire interfaces, and discrete audio in/audio

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Tempest 2.4GHz Multi-BaseStation Guide – v.1

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out type applications. (Note – A discrete 4-wire connection is required for every channel of every base in a
system.)

Stage Announce

Stage Announce. A discrete 3-pin XLR-f output from the BaseStation. When the “Stage” button on the

BeltStation is pressed, all other audio sends from the enabled BeltStation are suspended, and the Mic signal
is routed to ‘the Stage Ann’ output on the back of the BaseStation.

External destination mixing of Stage Announce

When using multiple BaseStations, the Stage Announce function does not automatically connect between
bases.

Using a simple line mixer, the Stage Announce outputs of multiple BaseStations can be combined so that
multiple sources can address the same destination. By enabling and connecting a BaseStations relay(s) to a
paging systems contact closures, you can enable different BeltStations to address different destinations
within your paging system.

Aux Out/Aux In (program). ¼” Balanced connectors enabling audio in to, or out of, the BaseStation.

External source mixing

When using multiple BaseStations, the Aux-In function does not automatically connect between bases.

Using a simple line mixer, multiple sources can be combined to a single BaseStations Aux-In. This can be
useful for creating an “un-interruptible” source for critical cueing without taking up an intercom channel.

External destination mixing

When using multiple BaseStations, the Aux-Out function does not automatically connect between bases.

Using a simple line mixer/router, a BaseStations Aux-Out can be sent to multiple destinations. This can be
useful for routing BaseStation audio to video recording, paging systems and listen-only systems.

Relay

Multi-base relay schemes

When using multiple BaseStations, the Relay function does not automatically connect between bases.

Single relay – multiple closures. In this setup we are using a single BaseStation Relay to trigger multiple
discrete contact closures. An example would be Stage Announce to a multiple zone paging system,
using the single relay to open all zones of a paging system to the Stage Announce output.

Multiple relays – single closure. In this setup we are using multiple BaseStation Relays to trigger a
single closure. An example would be multiple BaseStations Stage Announce controlling the same
contact closure.

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