CLEAR-COM ENCORE IF4W4 4-CHANNEL FOUR-WIRE INTERFACE INSTRUCTION MANUAL
IF4W4 4-Channel Four-Wire Interface Instruction Manual © 2007 Vitec Group Communications All Rights Reserved Part Number 810497Z Rev. 2 Vitec Group Communications, LLC. 850 Marina Village Parkway Alameda, CA 94501 U.S.A Vitec Group Communications 7400 Beach Drive Cambridge Research Park Cambridgeshire United Kingdom CB25 9TP Vitec Group Communications Room 1806, Hua Bin Building No. 8 Yong An Dong Li Jian Guo Men Wai Ave Chao Yang District Beijing, P.R.
CONTENTS OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Null Adjustment . . . . . . . . . . . . . . . . . . . . . . . .
ii IF4W4 4-CHANNEL FOUR-WIRE INTERFACE
IMPORTANT SAFETY INSTRUCTIONS 1. 2. 3. 4. 5. 6. 7. Please read and follow these instructions before operating this product. 8. 9. 10. 11. 12. 13. Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with dry cloth. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN This symbol alerts you to the presence of uninsulated dangerous voltage within the product's enclosure that might be of sufficient magnitude to constitute a risk of electric shock. Do not open the product's case. This symbol informs you that important operating and maintenance instructions are included in the literature accompanying this product.
1 OPERATION INTRODUCTION Congratulations on choosing this Clear-Com product. Clear-Com was established in 1968 and remains the market leader in providing intercoms for entertainment, broadcast and industrial applications. The ruggedness and high build-quality of Clear-Com products defines the industry standard. In fact, many of our original beltpacks and main stations are still in daily use around the world.
four-wire input and output. The interface mounts in a standard 19 in. (48.64 cm) equipment rack and is 1.75 in. (4.48 cm) in height. Figure 1-2: IF4W4 Rear View Installation and setup requirements are the same for all channels of the IF4W4 interface (i.e., A, B, C, or D channels). OPERATION For normal operation, the position of the ‘Link’ switches on the front of the unit do not change after installation.
Repeat the same procedure for each channel. RECEIVE LEVEL ADJUSTMENT Adjust the receive level on the interface using the ‘In’ control while listening to the output of a Clear-Com intercom station. The ‘In’ control is located on the front panel of the IF4W4. Repeat the same procedure for each channel. TRANSMIT LEVEL ADJUSTMENT Adjust the transmit level using the ‘Out’ control with a conversation on a Clear-Com line.
1-4 IF4W4 4-CHANNEL FOUR-WIRE INTERFACE
2 INSTALLATION Installation and setup requirements are the same for all channels of the IF4W4 interface (i.e. A, B, C, or D channels). The following describes installation of a four-channel interface. The IF4W4 interface can be set up to operate as four independent interfaces, or may be internally bussed into a single common party line. Therefore installation requirements will vary according to the configuration. Installation for four-wire and headset emulation are discussed separately.
Note: In the external four-wire link, any artificial sidetone leakage from the transmit to the receive signal must be eliminated as much as possible. For headset emulation (see “Dynamic Mic Headset Emulation” and “Carbon Mic Headset Emulation”), local sidetone in the four-wire devices (i.e. cameras) must be completely turned off. STANDARD FOUR-WIRE INSTALLATION: LINE LEVEL IN/OUT The standard four-wire installation provides input/output for general purpose four-wire interfaces.
CARBON MIC HEADSET EMULATION Figure 2-6 shows the IF4W4 connections to a carbon mic headset. Local sidetone in the four-wire device must be completely turned off. IF4W4 INT GND 5 Figure 2-6: Carbon Mic Headset Emulation Please refer to the technical specification for further information.
2-4 IF4W4 4-CHANNEL FOUR-WIRE INTERFACE
3 TECHNICAL SPECIFICATIONS IF4W4 4-CHANNEL FOUR-WIRE INTERFACE dBu is an absolute measurement. 0 dBu is referenced to 0.
Power Input Voltage Range Input Current (Idle) Input Current (Max) 20-30 VDC <= 40mA <= 50mA Rear Panel Connectors Intercom: 4-Wire Terminal Block Connectors 4-Wire Transmit Level Switches Front Panel Connectors Headset: TS1 Earphone (1) XLR-4M (1) 3.
LIMITED WARRANTY Vitec Group Communications (VGC) warrants that at the time of purchase, the equipment supplied complies with any specification in the order confirmation when used under normal conditions, and is free from defects in workmanship and materials during the warranty period. VGC offers 24 x 7 customer support if you have an Extended Warranty or Service Contract. Return Material Authorization (RMA) numbers are required for all returns. Both warranty and non-warranty repairs are available.
such agreement. For more information, contact your authorized dealer, distributor, or sales representative. Instructions for reaching VGC’s User Support Centers are given below. Telephone for Europe, Middle East and Africa: +49 40 6688 4040 Telephone for the Americas and Asia: +1 510 337 6600 Email: vitec.support@AVC.de Once the standard warranty period has expired, the User Support Center will continue to provide telephone support if you have purchased an Extended Warranty or Service Contract.
years the warranty of any product offered with a standard two-year warranty. The total warranty period will not extend beyond five years. Any purchase of an extended warranty provides 24 x 7 customer support in addition to the warranty immediately upon purchase of the warranty extension. Note: VGC does not offer warranty extensions on UHF wireless intercom systems, or on any product with a 1-year or 90-day warranty.
of customer furnished components resulting in damage to VGC provided product. This limited warranty is not transferable and cannot be enforced by anyone other than the original consumer purchaser. This warranty gives you specific legal rights and you may have other rights which vary from country to country.
