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EMERGENCY CALL SWITCH TWO POLE PLASTIC P
Single-gang mounting
2 pole switches
Attractive, flame-retardant (UL 94V-0) plastic panel
Highly visible emergency labeling
May use with a central annunciator, or for local alarm
functions
AMPLIFIER/RELAY/POWER SUPPLY F/5 4 & 3 W
The TEKTONE-PK543A Apartment Intercom Amplifier is a self-contained unit that does not require an external amplifier. The PK543A is designed for use with 3-, 4- or 5-wire apartment remote stations and provides amplification, control and power circuits needed to operate a complete apartment intercom system. Voice volume control and tone volume control are easily adjustable through the screwdriver opening on the front panel.
Additional functions of the PK543A include multiple door entrance operation with the PK502B; AC, DC or Maglock configurations with three selectable delayed door timing modes; post office door lock release; steady or warble call tones; power LED; selectable door button hold timeout; and selectable talk before door interlock (available for 4 -wire stations only).
