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IFB-828
IFB Interface
User Manual
9300709400 Rev H 04/2010
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PROPRIETARY NOTICE SHIPPING TO THE MANUFACTURER The product information and design disclosed herein were origi- All shipments of product should be made via UPS Ground, prepaid nated by and are the property of Bosch Security Systems, Inc. (you may request from Factory Service a different shipment Bosch reserves all patent, proprietary design, manufacturing, repro- method). Any shipment upgrades will be paid by the customer. The duction, use and sales rights thereto, and to any article disclose
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Important Safety Instructions 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with dry cloth. 7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. 8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. 9. Do not defeat the safety purpose of the po
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Table of Contents DESCRIPTION AND SPECIFICATIONS .................................................................................................3 Description ................................................................................................................................................................3 Specifications .............................................................................................................................................................4 INST
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CHAPTER 1 Description and Specifications Description The IFB-828 interfaces up to eight (8) RTS System’s Model IFB-325, 4020, or 4030 IFB Belt Packs to any RTS Digital Matrix Intercom System, and it provides power to belt packs. The IFB-828 may also be used as a simple program interface to feed two (2) separate program sources to each of eight (8) 4020 or 4030 belt packs (16 program sources to eight (8) belt packs total). FIGURE 1. IFB-828 Reference View 3
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Description and Specifications Specifications Dimensions 19” wide x 1.75” high x 7.5” deep (483mm x 44.5mm x 191mm) Input Power Requirements 110/120 or 220/240 VAC, 50/60Hz, selectable via a back panel switch Audio Inputs Type: Balanced (transformer coupled) Level: +4 to +8dBu Impedance Approximately 600 Ohms Audio Outputs Type Unbalanced Level: -10 to -6dBu Output Power (each IFB belt pack channel) +24VDC, 160mA not to exceed a total of 750mA Connectors Input (J9) Type: 50-pin telco Outputs (J1
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CHAPTER 2 Installation Installation in an RTS Digital Matrix IFB-828 Location The XLR connector output from the IFB-828 provides unbalanced audio and DC operating power to IFB belt packs. Therefore, very long cable runs (over several hundred feet) from the IFB-828 to the belt packs may result in diminished performance due to DC resistance in the cabling and noise induced by surrounding equipment. Select a location for the IFB-828 that is as close as possible to the belt packs or use appropria
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Installation � Connect the IFB program audio source to the � While the IFB key is activated, adjust the intercom port that you defined as the program appropriate level control on the front panel of input port of the matrix (in step 4) and connect the IFB-828 to mix the desired amount of the IFB program audio source to the direct direct program audio back into the keypanel’s program input of the selected channel of the mic audio signal. IFB-828. When the IFB key is released, the mic audio s
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Installation FIGURE 2. IFB Belt Pack Interconnect Cable Wiring Diagram Using the IFB-828 as a Simple Program Interface with 4020 and 4030 Belt Packs Use Table 1 on page 6 and the cable wiring sources to each IFB-828 channel. In this application, each direct program input at the IFB-828 feeds to the NON-INTERRUPT channel of the belt pack, and the level is adjusted by the NON-INTERRUPT control on the belt pack; each IFB input feeds to the INTERRUPT channel and is adjusted by the INTERRUPT contro
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