Food services trade department printed in u.S.A 3m center 3m 2003 march st. Paul, mn 55144-1000 70-0710-3745-4 wireless intercom system service information c1060 headset c960
Wireless intercom system table of contents 3m 2003 march i section 1. Operation and diagrams introduction ..................................................................................................................................................... 1-1 system components.........................
Table of contents wireless intercom system ii 3m 2003 march vehicle detector signal dc ............................................................................................................... 1-11 interconnect module diagram.......................................................................
Wireless intercom system theory of operation and diagrams 1-1 e 3m 2003 march introduction the 3m wireless intercom system is designed for high reliability, compactness, and ease of service. It is designed to provide two-way, radio-frequency audio communication in quick service drive-through restaur...
Wireless intercom system theory of operation and diagrams 1-2 e 3m 2003 march single-lane duplex communication system this system provides duplex communication (simultaneous talk/listen) for facilities that have one menu sign. It consists of one base station and one or more headsets and battery char...
Wireless intercom system theory of operation and diagrams 1-3 e 3m 2003 march in standard communication systems, the output from the headset receiver is muted when the headset transmitter is on. This provides standard (non--duplex) communication (talk or listen). In duplex communication systems, the...
Wireless intercom system theory of operation and diagrams 1-4 e 3m 2003 march transmitted to the base station where it is received, transmitted to other headsets and sent to the monitor speaker amplifier. Page monitor mode the page monitor mode allows headset operators to hear only page communicatio...
Wireless intercom system theory of operation and diagrams 1-5 e 3m 2003 march base station n note receiver/transmitter and logic circuitry contained in the base station is both proprietary and non-field repairable. For this reason, the accompanying base station diagram provides no circuit component ...
Wireless intercom system theory of operation and diagrams 1-6 e 3m 2003 march menu mic input audio from the menu sign may come from one of two sources: a combination speaker/microphone (the menu sign speaker) or a separate dynamic microphone (the menu mic). The mic/spkr jumpers j1 and j2 must be set...
Wireless intercom system theory of operation and diagrams 1-7 e 3m 2003 march configuration switches reset switch: very briefly, actuation of the reset switch clears logic inputs of their established levels and latches the logic inputs at their new levels. Channel select switch: the wireless interco...
Wireless intercom system theory of operation and diagrams 1-8 e 3m 2003 march (blank page).
Wireless intercom system theory of operation and diagrams © 3m 2003 march 1–9 base station and external components diagram.
Theory of operation and diagrams wireless intercom system 1–10 © 3m 2003 march (blank page).
Wireless intercom system theory of operation and diagrams 1--11 e 3m 2003 march interconnect module an interconnect module is needed when a headset intercom system includes an auxiliary intercom to provide continued communications when the primary intercom needs service. The auxiliary intercom may b...
Wireless intercom system theory of operation and diagrams 1--12 e 3m 2003 march (blank page).
Wireless intercom system theory of operation and diagrams ©3m 2003 march 1-13.
Wireless intercom system theory of operation and diagrams 1--14 e 3m 2003 march (blank page).
