IFB-325
Portable User Station
Talent Electronics
User Manual
9350-7488-000 Rev D12/2005
PROPRIETARY NOTICE
The RTS 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 2005 by Telex Communications, Inc. All rights reserved. Reproduction
in whole or in part without prior written permission from Telex is prohibited.
UNPACKING AND INSPECTION
Immediately upon receipt of the equipment, inspect the shipping container and
the contents carefully for any discrepancies or damage. Should there be any,
notify the freight company and the dealer at once.
CUSTOMER SUPPORT
Technical questions should be directed to:
Customer Service Department
RTS/Telex Communication Inc.
12000 Portland Avenue South.
Burnsville, MN 55337 U.S.A.
Telephone: (800) 392-3497
Fax: (800) 323-0498
Factory Service: (800) 553-5992
Return Shipping Instructions
Customer Service Department
Telex Communications, Inc. (Lincoln, Nebraska)
Telephone: (402) 467-5321
Fax: (402) 467-3279
Factory Service: (800) 553-5992
Shipping to the Manufacturer
All shipments of products 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 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
Please include a note in the box which supplies the company name, address,
phone number, and a person to contact regarding the repair, the type and quantity
of equipment, a description of the problem and the serial number(s).
Chapter 1
Introduction and Description ......................................................................................................................3
Description and Specifications ....................................................................................................................3
General ........................................................................................................................................................3
Features .......................................................................................................................................................3
Connections and Controls ...........................................................................................................................3
Replacement Parts .......................................................................................................................................7
Where to Obtain Parts .................................................................................................................................7
Mechanical Parts .........................................................................................................................................7
the IFB-325 is a portable user station for use with RTS 2-wire intercom systems. The IFB-325 is a listen-only IFB belt pack
that can be used to listen to only one intercom channel.
Features
Features of the IFB-325 include:
• Powered externally, via the intercom system power supply on channel one
• Power-ON indicator
• Headset/earset jack set for 150Ω operation
• Internal jumper selection of intercom channel one or channel two (default to channel two)
Connections and Controls
The IFB-325 has the following connections and controls:
• Intercom/program volume control
• Headset connector that accepts 1/4” monaural phone plug
• Channel connector that accepts an XLR type 3-pin connector for intercom line an power input
3
Introduction and Description
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” (88.mm)W x 1.8” (45.7mm) D
Wei ght
1.0 pounds (0.45kg)
Interface Requirements
Earset
150 to 600Ω headphones
RTS Intercom Channel
Input Level: 2 Vp-p (0 dBu) nominal
Input Impedance: 200Ω ±5%
Noise Contribution
less than -60 dB on the line
Headphone Amplifier
Voltage Gain
27 ±3dB from the line
Maximum Output
165mW into 150Ω
Frequency Response
250 Hz to 8 kHz +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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