Rts IFB-325 User Manual
IFB-325 Portable User Station Talent Electronics User Manual
93507488000 Rev E August / 2007
PROPRIETARY NOTICE
SHIPPING TO THE MANUFACTURER
The product information and design disclosed herein were originated by
and are the property of Telex Communications, Inc. Telex reserves all
patent, proprietary design, manufacturing, reproduction, use and sales
rights thereto, and to any article disclosed therein, except to the extent
rights are expressly granted to others.
COPYRIGHT NOTICE
Copyright 2007 by Telex Communications, Inc. All rights reserved.
Reproduction, in whole or in part, without prior written permission from
Telex is prohibited.
WARRANTY NOTICE
See the enclosed warranty card for further details.
CUSTOMER SUPPORT
Technical questions should be directed to:
Customer Service Department
RTS/Telex Communications, Inc.
12000 Portland Avenue South
Burnsville, MN 55337 USA
Telephone: 800-392-3497
Fax: 800-323-0498
All shipments of product should be made via UPS Ground, prepaid (you
may request from Factory Service a different shipment method). Any
shipment upgrades will be paid by the customer. The equipment should
be shipped in the original packing carton. If the original carton is not
available, use any suitable container that is rigid and of adequate size. If
a substitute container is used, the equipment should be wrapped in paper
and surrounded with at least four (4) inches of excelsior or similar
shock-absorbing material. All shipments must be sent to the following
address and must include the Proof of Purchase for warranty repair.
Upon completion of any repair the equipment will be returned via
United Parcel Service or specified shipper, collect.
Factory Service Department
Telex Communications, Inc.
8601 East Cornhusker Hwy.
Lincoln, NE 68507 U.S.A.
Attn: Service
This package should include the following:
QTY
1 90107488000 IFB325 Assembly
1 93507488000 Operation Manual
1 38109675 Certificate of Conformity
1 38110387 Warranty
PART
NUMBER DESCRIPTION
RETURN SHIPPING INSTRUCTIONS
Customer Service Department
Telex Communications, Inc. (Lincoln, NE)
Telephone: 402-467-5321
Fax: 402-467-3279
Factory Service: 800-553-5992
Please include a note in the box which supplies the company name,
address, phone number, a person to contact regarding the repair, the type
and quantity of equipment, a description of the problem and the serial
number(s).
Table
of
Contents
Chapter 1
Introduction and Description ....................................3
Description and Specifications ..................................3
General ......................................................................3
Features .....................................................................3
Connections and Controls .........................................3
Specifications .............................................................4
Chapter 2
Operation ...................................................................5
External Connections and Controls ..........................5
Internal Jumper .........................................................6
Chapter 3
Replacement Parts ..................................................... 7
Where to Obtain Parts ............................................... 7
Mechanical Parts ....................................................... 7
Final Assembly ..........................................................7
Connector Plate Assembly ......................................... 7
PC Board Assembly ................................................... 8
Chapter 4
Diagrams ................................................................... 9
Final Assembly, IFB-325 Rev P ..............................10
Connector Plate Assembly, IFB325 Rev G .............. 11
PC Board Assembly, IFB325 ................................... 12
IFB Schematic Page 1 90277477000 ...................... 13
IFB Schematic Page 2 90277477000 ...................... 14
IFB Schematic Page 3 90277477000 ...................... 15
Connector Assemblies, IFB325 ............................... 16
Notes ........................................................................ 17
CHAPTER 1
Introduction and Description
Description and Specifications
General
The IFB325 is a portable user station for use with RTS® 2-wire intercom systems. The IFB325 is a listen-only IFB belt pack
that can be used to listen to only one intercom channel.
Features
• Powered externally, via the intercom system power supply on channel 1
• Power ON indicator LED
• Headset / earset jack set for 150Ω operation
• Internal jumper selection of intercom channel 1 or channel 2 (default to channel 2)
Connections and Controls
The IFB325 has the following connections and controls:
• Intercom/program volume control
• Headset connector that accepts 1/4” monaural phone plug
• Channel connector that accepts and XLR type 3-pin connector for intercom line and power input
3
Specifications
GENERAL
Channel Supplied Power Requirements
32 VDC nominal (standard RTS line), 50 to 80 mA
Environmental Requirements
Storage: -20°C to 80°C ; 0% to 95% humidity, non-condensing
Operating: 0°C to 50°C ; 0% to 95% humidity, non-condensing
Dimensions
3.25” (82.6mm) H x 3.5” (88mm) W x 1.8” (45.7mm) D
Weight
1.0 pound (0.45kg)
Interface Requirements
Earset
150 to 600Ω headphones
RTS Intercom Channel
Input Level: 2Vp-p (0dBu) nominal
Input Impedance: 200Ω ±5%
Noise Contribution
less than -60dB on the line
Headphone Amplifier
Voltage Gain
27 ±3dB from the line
Maximum Output
165mW into 150Ω
Frequency Response
250Hz to 8kHz +1/-4dB
Connector Pin Configurations
Headset Connector
Type: 1/4” Monaural Plug
Sleeve: Headset audio low
Tip: Headset audio high
Intercom Channel Connectors
Type : XLR -3F
Pin 1 Common
Pin 2 Intercom Channel 1 (audio and +32 VDC input)
Pin 3 Intercom Channel 2 (audio)
4
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