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Summary of Contents for Gentner GT300
- Page 1 GT300 and GT700 Installation and Operations Manual...
- Page 2 Copyright Information © Copyright 1996 Gentner Communications Corporation. All rights reserved. No part of this manual may be reproduced in any form or by any means without written permission from Gentner Communications Corporation. Printed in the United States of America. Original version, 1/93. Gentner Communications Corporation reserves specification privileges.
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Page 3: Table Of Contents
Restoring Listening Volume to Default Phone Add Option Remote Control Option Emergency Restoration When Not in Use Two-Wire (Telephone) Teleconferencing Four-Wire (Video) Teleconferencing Bridging Multiple Calls Specifications Warranty Technical or Setup Assistance Telephone: 800.945.7730 (USA) or 801.975.7200 (worldwide) • Worldwide Web @ http://www.gentner.com... - Page 4 Table 2. RS232 DB-9 Connector Pinouts Table 3. Bridge DB-9 Connector Pinouts Table 4. Telephone Set and Line Connections Table 5. GT Serial Port Commands Technical or Setup Assistance Telephone: 800.945.7730 (USA) or 801.975.7200 (worldwide) • Worldwide Web @ http://www.gentner.com...
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Page 5: Introduction
Registration warranty registration card and return it to Gentner Communications by mail. You may also FAX it to the above listed fax number or call Gentner Communications. When your product is properly registered, Gentner Communications will be able to serve you better should you require technical assistance or desire to receive upgrades, new product information, etc. -
Page 6: Tools Required
Description video and audio applications. Model GT300 The GT300 operates with a 3.4kHz bandwidth and at least 112 millisecond acoustic echo-cancellation span. It is designed for use in both video and audio applications. The GT300 contains a built-in microphone preamplifier and speaker driver. -
Page 7: Adjustable Settings
Both GT series models operate with a 112-millisecond acoustic echo-cancellation span. Noise Filtering Internal filters remove unwanted noise: GT300 — below 300Hz and above 3.4kHz; GT700 — below 50Hz and above 7kHz. Two-Wire (Telephone) and Four-Wire (Video) Modes Both GT series models will operate in either two-wire (telephone) or four- wire (video) modes. -
Page 8: Power Requirements
Auxiliary Equipment Any auxiliary equipment to be used with the GT (i.e. microphones, speakers, recording equipment, etc.) should be available at time of installation. Technical or Setup Assistance Telephone: 800.945.7730 (USA) or 801.975.7200 (worldwide) • Worldwide Web @ http://www.gentner.com... -
Page 9: Equipment Placement
Rack-mount ears are included in the shipment for converting to a rack- mountable unit, if desired. 1) Remove the two screws from the side panels and retain for later use. Technical or Setup Assistance Telephone: 800.945.7730 (USA) or 801.975.7200 (worldwide) • Worldwide Web @ http://www.gentner.com... -
Page 10: Step 2 - Make Connections
+ (red) and - (black) binding post connectors [2]. Figure 5. GT speaker connector Remote Control If using Gentner’s optional remote control, plug it into the DB15 connector [4] (See Figure 6, left.) labeled REMOTE. For pinouts, see Appendix B (Page 19). -
Page 11: Figure 9. Gt Auxiliary Equipment Rca Jack
Check Specifications (Page 15) for proper level and impedance for both male Figure 12. (Top) Four-wire (video) and female XLR connections. receive female XLR connector; (Bottom) four-wire (video) transmit male XLR connector Technical or Setup Assistance Telephone: 800.945.7730 (USA) or 801.975.7200 (worldwide) • Worldwide Web @ http://www.gentner.com... -
Page 12: Calibration
Someone in the local room should speak into the microphone at a normal distance, in a normal voice. The party at the other location should not speak Technical or Setup Assistance Telephone: 800.945.7730 (USA) or 801.975.7200 (worldwide) • Worldwide Web @ http://www.gentner.com... -
Page 13: Wire/Video Transmit Level Adjustment
If you are using the GT’s internal power amp, adjust the ROOM RECEIVE trim pot [17] (while the person is speaking) for a comfortable listening level Technical or Setup Assistance Telephone: 800.945.7730 (USA) or 801.975.7200 (worldwide) • Worldwide Web @ http://www.gentner.com... -
Page 14: Automatic Setup
Front Panel Security Now that your system has been properly installed, adjusted and calibrated, and setup is complete, your level settings can be protected from tampering by Technical or Setup Assistance Telephone: 800.945.7730 (USA) or 801.975.7200 (worldwide) • Worldwide Web @ http://www.gentner.com... -
Page 15: Operation
(The red PRIVACY LED [30] will be lit and the green TELEPHONE LED [28] and 4 WIRE/VIDEO LED [26] will be off). Press and hold the TELEPHONE button [29]. When the associated LED [28] Technical or Setup Assistance Telephone: 800.945.7730 (USA) or 801.975.7200 (worldwide) • Worldwide Web @ http://www.gentner.com... -
Page 16: Increasing Listening Volume
VOLUME + [33] and VOLUME – buttons [32] simultaneously. VOLUME DEFAULT NOTE: At the conclusion of each conference, the volume levels are automatically restored to the nominal, mid-range setting. Technical or Setup Assistance Telephone: 800.945.7730 (USA) or 801.975.7200 (worldwide) • Worldwide Web @ http://www.gentner.com... -
Page 17: Phone Add Option
(video) operation will need to be reinitiated by pressing the required button (LED will light). The telephone call will need to be redialed, when using the telephone mode. Technical or Setup Assistance Telephone: 800.945.7730 (USA) or 801.975.7200 (worldwide) • Worldwide Web @ http://www.gentner.com... -
Page 18: When Not In Use
GT in each room. Figure 17. Two-GT connection GT COMPATIBILITY NOTE: The GT is compatible with most other manufacturer’s teleconferencing equipment; however, systems with full-duplex capability are recommended. Technical or Setup Assistance Telephone: 800.945.7730 (USA) or 801.975.7200 (worldwide) • Worldwide Web @ http://www.gentner.com... -
Page 19: Bridging Multiple Calls
Contact 1-800 LETS MEET at 1-800 LETS MEET for more information. The 1-800 LETS MEET bridge service offers the best audio quality possible when bridging your sites together. Technical or Setup Assistance Telephone: 800.945.7730 (USA) or 801.975.7200 (worldwide) • Worldwide Web @ http://www.gentner.com... -
Page 20: Specifications
50Hz to 7kHz +1dB in four-wire (video) mode; 300 to 3.4kHz +1dB with 6dB pre-emphasis on transmit in two-wire (telephone) mode Operating Temperature 32–100° F Specifications are subject to change without notice. Technical or Setup Assistance Telephone: 800.945.7730 (USA) or 801.975.7200 (worldwide) • Worldwide Web @ http://www.gentner.com...
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