Specifications

Pin Function Description
1 PTT output Connect to the radio PTT input to control the radio transmit function
2 RX Audio Connect to the radio discriminator or detector. Although not recommended,
squelched/speaker audio can be used.
3 N/C
4 CTCSS logic i/p This input is normally connected to a radio or external CTCSS/DPL decoder output
to provide additional system security. When installed, the 4700VP will only connect
when the proper CTCSS/DPL is detected by the decoder and its output changes state.
This input is user programmable for active high or active low.
5 Ground Connect to a ground point in the radio
6 TX Audio Connect to the microphone/audio input of the transceiver/transmitter.
7 N/C
8 External COR Use this pin on applications where discriminator audio is not used (squelched audio is
used). This input is user programmable for active high or active low, and can also be
connected to an external CTCSS/DCS decoder output.
9 Power (12vdc) Connect to switched radio voltage. Range 10 - 15 V DC.
Radio Interface
© Copyright 1999 CES Wireless Technologies, All Rights Reserved. Not to be reproduced in whole or in part without the written consent of CES. All information
contained in this document is carefully prepared and offered in good faith as a guide in the installation, use, and servicing of our products. Installers must ensure that
the final installation operates satisfactorily, within relevant regulatory requirements. We accept no responsibility for incorrect installation, or lightening damage. We
reserve the right to change products, specifications, and installation data at any time, without notice. Printed in USA. February 11, 1999
CES Wireless Technologies Corp.
925-122 S. Semoran Blvd
Winter Park, FL 32792 USA
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