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RTS IFB-828 Service Manual
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RTS IFB-828 Service Manual

Two-wire intercom
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IFB-828
Service Manual
LIT000481000 Rev B
© Bosch Security System, Inc 2010
MAY–2010

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Summary of Contents for RTS IFB-828

  • Page 1 IFB-828 Service Manual LIT000481000 Rev B © Bosch Security System, Inc 2010 MAY–2010...
  • Page 2 ROPRIETARY OTICE HIPPING TO THE ANUFACTURER The product information and design disclosed herein were originated by All shipments of product should be made via UPS Ground, prepaid (you and are the property of Bosch Security Systems, Inc. Bosch reserves all may request from Factory Service a different shipment method).

  • Page 3: Table Of Contents

    Table Contents IFB-828 Description ..............................3 Installation in an RTS Digital Matrix ........................3 Using the IFB-828 as a Simple Program Interface with 4020 and 4030 Belt Packs ..........6 Specifications ................................7 IFB-828 Mechanical Assembly Parts ........................8 90007094005 / 90007094006 ..............................8 IFB-828 PC Board Electrical Parts ..........................8 90307094000 ...................................8...

  • Page 5: Ifb-828 Description

    Intercom System, and it provides power to the 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).
  • Page 6 The program audio should be interrupted at the associated IFB belt pack, and the mic audio from the keypanel becomes audible. While the IFB key is active, adjust the appropriate level control on the front panel of the IFB-828 to mix the desired amount of direct program audio back into the keypanel’s mic audio signal.
  • Page 7 Input Connector Pin Out (J9) TABLE 1. Pin Numbers Description + Input - Input Channel 1 direct program input Channel 1 IFB input (from Matrix) No connection Channel 2 direct program input Channel 2 IFB input (from Matrix) No Connection Channel 3 direct program input Channel 3 IFB input (from Matrix) No Connection...

  • Page 8: Using The Ifb-828 As A Simple Program Interface With 4020 And 4030 Belt Packs

    Using the IFB-828 as a Simple Program Interface with 4020 and 4030 Belt Packs Use Table 1 on page 5 and the cable wiring in Figure 2 to connect one (1) or two (2) program sources to each IFB-828 channel.

  • Page 9: 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...

  • Page 10: Ifb-828 Mechanical Assembly Parts

    DIODE, 1N4004, 400 V 50745-005 DIODE, 1N4004, 400 V 50745-005 DIODE, 1N4004, 400 V 50745-005 DIODE, 1N4004, 400 V 50745-005 IFB-828 PC Board Electrical DIODE, 1N4004, 400 V 50745-005 Parts DIODE, 1N4004, 400 V 50745-005 DIODE, 1N4004, 400 V 50745-005...
  • Page 11 Description Part No. Description Part No. CONNECTOR, RA XLR, M-3 59892-003 RESISTOR, MF, 124 OHM, 1%, 54042-124 1/4W CONNECTOR, RA XLR, M-3 59892-003 RESISTOR, WW, 10 OHM, 10%, CONNECTOR, RA XLR, M-3 59892-003 50155-011 CONNECTOR, RA XLR, M-3 59892-003 POTENTIOMETER, 100 OHM, 523015-000 CONNECTOR, RA XLR, M-3 59892-003...
  • Page 12 Description Part No. Description Part No. RESISTOR, MF, 124 OHM, 1%, CAPACITOR, CEREMIC DISC, 54042-124 52157-022 1/4W 0.001UF 500V RESISTOR, WW, 10 OHM, 10%, CAPACITOR, CEREMIC DISC, 50155-011 52157-022 0.001UF 500V POTENTIOMETER, 100 OHM, CAPACITOR, CEREMIC DISC, 523015-000 52157-022 10%, 1W 0.001UF 500V RESISTOR, MF, 2.26K OHM, CAPACITOR, CEREMIC DISC,...

  • Page 13: Drawings

    Drawings 9027-7094-000 (page 1) FIGURE 3.
  • Page 14 9027-7094-000 (page 2) FIGURE 4.

  • Page 15: Notes

    Notes...