Siren Operation

Siren mode may be radio-user activated / deactivated with a Siren button-press once the desired tone has been pre-selected via an Airhorn, Hi / Lo, Manual, Wail, or Yelp button-press. These buttons are also used to switch to a different tone while the Siren is sounding.

Siren mode may alternately be radio-user activated / deactivated via one of the Direct Siren functions, which simultaneously turn on / off the Siren amplifier while also selecting the desired tone: Direct Hi / Lo, Direct Manual, Direct Wail, or Direct Yelp button-presses.

  External Radio mode is radio-user activated / deactivated either with an External Radio button-press, in conjunction with a Siren button-press, or directly with a Direct Ext Radio button-press.

PA system functionality is radio-user activated / deactivated with a Public Address button-press.

For a Dual Radio configuration:

• When the Radio Selection field is set to "Secondary Radio", this field must be set to "Disabled", otherwise it is considered invalid. Selecting "Disabled" then makes this field inaccessible.

• Although the Siren box must be connected to the Primary Radio, the radio-user can still operate any of the Siren / PA system functions (defined in the above Workflow Notes) independent of the current radio selection, provided these button features are configured identically for both radios; additionally, the Siren does not change state when the radio selection is swapped.

SELECTIONS:

DEFINITIONS:

Disabled

Siren and Public Address (PA) system functions are unavailable.

Siren / PA

Both Siren and PA system functions are possible.

PA Only

Only PA system functions (including External Radio mode) are possible.

When a radio comes factory-equipped with an O7 Control Head that has the optional Siren and Lights Keypad, this feature's default value is "Siren / PA". See also the O7 Siren / Lights Keypad Keystone Concept.