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PA BOARD ....LBI-38302 SERVICE SECTION ... . LBI-38851 COMPONENTS, ADDED, DELETED OR CHANGED BY PRODUCTION CHANGES Ericsson Inc. Private Radio Systems Mountain View Road...
Ericsson Inc., at any time and without notice. Such changes will be incorporated into new editions of this manual. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose, without the express written permission of Ericsson Inc.
LBI-38848 The circuit boards are all mounted on a main casting to SPECIFICATIONS* GENERAL DESCRIPTION provide easy access for servicing. Interconnect plugs are used to connect the boards to eliminate pinched wires and other GENERAL The Dual Format MDX™ Mobile Radio is a synthesized, wiring problems.
The STE is enabled for NOTE: PC PROGRAMMER OPTIONS transmit and/or receive by PC programming the radio’s per- Primary codes in bold are unique Ericsson codes. sonality. The radio is programmed using an IBM compatible personal computer equipped with a RS-232 port. Option...
LBI-38848 After the initiating mobile receives a channel assignment conditions that cause the radio to switch from one mode to HARDWARE AND SYSTEM DESCRIPTION from the control station, it immediately switches frequency another are shown in Figure 2. HARDWARE OPTIONS over to the assigned voice channel and sends a burst of 9600 The radio enters the Idle mode when power is turned on EDACS...
LBI-38848 Figure 1 - GE-MARC Block Diagram Figure 3 - Signal Timing tone in order for the radio to enter the Ready mode. If no busy GLOSSARY OF GE-MARC TERMS Busy Tone tone is present or if the four-tone sequence isn’t valid, the mobile will jump to the next channel in the call originate set A "Voice-plus"...
LBI-38848 In a two-tone call, the mobile sends the collected tone unit is an invalid user or if the unit is CARRIER (GE-MARC and Conventional operation.) Turning The Radio ON/OFF for a programmable duration. In the four-tone call, the mo- requesting an unavailable service.