User guide
38 Tempest®24 00 4-Channel Wireless Intercom System
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
BeltSta on to control one, are available through the DA-15 Relay Connector on the back of the Tempest BaseSta on. These
relays can only be triggered from the wireless BeltSta ons.
The SA Relay func on in the Tempest BaseSta on is ac vated by the STAGE bu on on the BeltSta on. The SA Relay remains
closed as long as the STAGE bu on is pressed.
The user can reassign the following BeltSta on bu ons and features to control an individual relay uniquely assigned to that
BeltSta on:
» Talk A/B
» Talk C/D
» Ch A/B
» Ch C/D
» Stage
» Enter
» Call
» Low Ba 10%
The relay is made when the assigned bu on is pressed and remains closed for as long as the bu on is pressed. The
individual GPO relay can also be triggered by the low ba ery level alert of the BeltSta on. In this case, the relay is made
when the ba ery level of the BeltSta on reaches 10% and remains closed un l the ba ery is replaced or the BeltSta on 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 applica on, cables for your RELAY connec ons 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
Tempest DA-15 Connector
Ac ve Channel Relay
This mode of relay opera on can control how all BeltSta ons on a par cular BaseSta on func on with respect to relays.
When ac ve, any TALK bu on pressed for a respec ve channel will close the corresponding relay on the BaseSta on. For
example, if any TALK bu on 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.”
BaseSta on “Relay 5” may be assigned to any of the exis ng relay triggers from any or all BeltSta ons, and the Stage Relay
operates normally. It is not possible to exclude any BeltSta on(s) from this mode of relay opera on once the BaseSta on
has been set into this mode.










