Performance: Blazons are triggered by the same voltage which lights the normal signal lamps in the intercom system. Whenever any signal lamp button on any station in the same circuit is pressed, the Blazons will be activated. The xenon lamp is permanently connected. The audible annunciator (Blazon/3) may be switched among constant, pulsed, and off. Circuitry is provided to sustain the Blazons for 4 seconds after being triggered. The xenon lamp has a flash rate of 2Hz, providing 8 flashes per cycle.

The Blazons are connected to the headset intercom system in the same manner as a beltpack. They have two 3-pin XLR connectors on the rear panel. By convention (to differentiate from microphone inputs) the female connector is designated as input. The male connector is provided for looping onwards to the next station in the system. Reversing these connections will not affect operation.

Blazons are powered by the intercom power supply and require no batteries or other external power source. In its ready mode it draws only 21.1mA; with the strobe active, 68mA, and; with the strobe and audible annunciator, only 80mA. When calculating power supply requirements, you may consider the Blazon/3 as the approximate equivalent of 3 or 4 beltpacks.

Durability: The ribbed, extruded aluminum case; glass-filled nylon end bezels; internal support system for the PC board, and; best quality XLR-type connectors, all contribute to the Blazons' ability to withstand rough usage.

Value: The comparatively low price of the Blazons is made possible by the minimized assembly cost resulting from simplicity of construction.

Compatibility: Blazons are compatible with Clear-Com® and other popular (200 ohms, unbalanced) headset intercom systems.

Specifications:

Supply voltage:                24 Volts nominal
Switch-on voltage:           8 Volts minimum
Switch-off voltage:           5 Volts maximum
Switch-on time:                75 milliseconds
Switch-off time:                4 seconds
Input Impedance:             1M Ohms minimum

XLR Connections:
PIN 1 -                            0 Volts
PIN 2 -                           +24 VDC
PIN 3 -                           Audio Signal & Trigger

Power Consumption:
Lamp only -                     210 mA
Lamp & Annunciator -     270mA

For more information, visit the Production Intercom Website: Blazon3 - Production Intercom Inc.