Bogen Communications Call-In Switch for PI135A, SI135A and Graphic Series Paging Systems - CA11A

Bogen Communications Call-In Switch for PI135A, SI135A and Graphic Series Paging Systems - CA11A

The Bogen CA-11A Press-to-Call Switch is intended for use with the PI135A, SI135A and 115B, 2223 and 2233 Graphic Series intercom and paging amplifiers. The fixed Privacy setting prevents unauthorized monitoring from the control setting without interfering with program or intercom transmissions.

The switch shall be a three-position, rocker-type switch, designed for use with Bogen PI35A and SI35A systems, and Bogen Multi-Graphic Series 115B, 2223, and 2233 systems. It shall have two single-pole circuits that are open in the normal center position, labeled TALK. One circuit shall close when the switch is pressed downward, a momentary position that energizes the corresponding annunciator lamp and the call-in tone at the room selector panel. This condition shall be maintained after the switch is released and until the call is acknowledged by the operator. The holding action shall be accomplished without the use of relays or other mechanical devices. The other circuit shall close when the switch is pressed upward to the fixed position labeled PRIVACY. When the switch is in this position, it shall be impossible for the system operator to monitor the associated staff loudspeaker. However, this shall not affect the transmission of program material or intercommunication from the control center to the loudspeaker (privacy is not available with 2-wire call-in).