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Tempest900 2-Channel Operating Manual
GPO Relay Contacts
Tempest Wireless provides six General Purpose Output (GPO) contact closures. These GPO contact closures can be used for interfacing with
other external devices. The Stage Announce (SA) Relay and the ve other GPO Relays, enough for each BeltStation to control one, are available
through the DA-15 Relay Connector on the back of the Tempest BaseStation. These relays can only be triggered from the wireless BeltStations.
The SA Relay function in the Tempest BaseStation is activated by the STAGE button on the BeltStation. The SA Relay remains closed as long as
the STAGE button is pressed.
The user can reassign the following BeltStation buttons and features to control an individual relay uniquely assigned to that BeltStation:
• Talk A
• Talk B
• Ch A
• Ch B
• Stage
• Enter
• Low Batt 10%
• Call
The relay is made when the assigned button is pressed and remains closed for as long as the button is pressed. The individual GPO relay can
also be triggered by the low battery level alert of the BeltStation. In this case, the relay is made when the battery level of the BeltStation reaches
10% and remains closed until the battery is replaced or the BeltStation is turned OFF.
All relay contacts can support 1 Amp at 30 VDC. The relay completes a circuit. Tempest does not supply any power to the circuit. Since every
user will require a custom application, cables for your RELAY connections will require some bench work.
DA-15 Relay Wiring
PIN Relay # PIN Relay #
1 Relay 1 9 Relay 1
2 Relay 2 10 Relay 2
3 Relay 3 11 Relay 3
4 Relay 4 12 Relay 4
5 Relay 5 13 Relay 5
6 Relay SA 14 Relay SA
7 Not Used 15 Not Used
8 Not Used
Active Channel Relay
This mode of relay operation can control how all BeltStations on a particular BaseStation function with respect to relays. When active, any
TALK button pressed for a respective channel will close the corresponding relay on the BaseStation. For example, if any TALK button on “Ch A” is
pressed then “Relay 1” will close. If TALK is pressed on “CH B” then “Relay 2” is closed, “CH C” for “Relay 3” and “CH D for Relay 4.”
BaseStation “Relay 5” may be assigned to any of the existing relay triggers from any or all BeltStations, and the Stage Relay operates normally.
It is not possible to exclude any BeltStation(s) from this mode of relay operation once the BaseStation has been set into this mode.
Tempest DA-15 Connector
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