Clear-Com Tempest2400, Reference Manual

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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 five GPO Relays, one for each BeltSta-
tion, are available through the DB-15 Relay Connector on the back of the Tempest BaseStation. These relays can be trig-
gered from the wireless BeltStations.
The SA Relay function in the Tempest BaseStation is activated by the STAGE button. 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
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 Belt-
Station 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.
DB-15 Relay Wiring
Pin Pin
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
Tempest DB-15 Connector