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Summary of Contents for M/A-Com tyco KRY 101 1737/3
- Page 1 Maintenance Manual AE/LZB 119 3604/1 R2B DTMF Microphone KRY 101 1637/3...
- Page 2 M/A-COM Private Radio Systems, Inc., at any time and without notice. Such changes will be incorporated into new editions of this manual. No part of this...
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Page 3: Table Of Contents
TABLE OF CONTENTS Page SPECIFICATIONS ................................ 4 Electrical/Acoustical..............................4 Environmental Endurance ............................5 INTRODUCTION................................6 Features ..................................6 Microphone Connector Wiring........................... 8 OPERATION ................................. 8 Adjustments................................8 Microphone Sensitivity: ............................8 DTMF Output:................................ 8 Voice Transmission ..............................9 Dialing ..................................9 AE/LZB 119 3604/1 R2B... -
Page 4: Specifications
SPECIFICATIONS SPECIFICATIONS ELECTRICAL/ACOUSTICAL (Test conditions unless otherwise specified: audio output measured between pin 2 and ground; PTT switch depressed; no hang-up button connection; mic and DTMF level trimmers full clockwise; dc VTVM 10 MΩ or greater input impedance; ac VTVM 1 MΩ or greater input impedance.) Electret condenser (with transistor preamplifier, DTMF signaling circuitry, illuminated keypad) Figure 1 - Typical Frequency Response... -
Page 5: Environmental Endurance
SPECIFICATIONS Audio Polarity Positive sound pressure produces positive voltage at pin 6 of modular connector with respect to ground. Microphone Connector 6-conductor modular telephone type PTT Switch Assembly Mechanical: Double-pole, single-throw, leaf-type, normally open. Electronic: Open NPN transistor collector to ground; positive polarity only; maximum on-state current 100 mA to produce 0.6 V or less;... -
Page 6: Introduction
INTRODUCTION INTRODUCTION Model KRY 101 1637/3 is a hand-held, amplified, condenser DTMF communications microphone with an illuminated keypad. The microphone is ideal for upgrading existing two-way radios for use with advanced telephone interconnect systems or for new installations. It is designed for rugged and reliable operation in any mobile communications application. - Page 7 INTRODUCTION • Convenient external microphone gain adjustment accommodates most input circuits • Simple, easy-to-use continuous-tone dialing • Externally accessible DTMF level adjustment, independent of microphone gain setting • Modular-plug coil-cord-easily attached and removed • Low susceptibility to radio frequency interference •...
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Page 8: Microphone Connector Wiring
OPERATION MICROPHONE CONNECTOR WIRING Color Function KRY 101 1737/3 Black A– Yellow White Mic Hi Switched A+ Drain Mic Lo Blue CG Dis The cable is attached to the microphone by inserting the modular telephone-type plug in the microphone jack until it locks. To remove the cable from the microphone, insert the small screwdriver supplied with the microphone in rear case hole "A"... -
Page 9: Voice Transmission
OPERATION Figure 3 - Microphone Case (rear) Voice Transmission Hold the microphone comfortably in the hand, positioned so that the Top-Talk Sound Channels at the top of the case are near the mouth. The clearest sound is often obtained with the microphone at the corner of the mouth, with the cable away from the face. - Page 10 OPERATION Figure 4 - Exploded View REPLACEMENT PARTS Cable and Modular Plug (Figure 4A) KRY 101 1637/21 OPTIONAL ACCESSORY Mounting Bracket 344A4678P1 AE/LZB 119 3604/1 R2B...
- Page 11 OPERATION AE/LZB 119 3604/1 R2B...
- Page 12 M/A-COM Wireless Systems 3315 Old Forest Road Lynchburg, Virginia 24501 (Outside USA, 434-385-2400) Toll Free 800-528-7711 www.macom-wireless.com Printed in U.S.A...
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