Audiocom IFB-1000 Installation and operation manual

IFB-1000
Beltpack
Portable, single-channel, listen-only beltpack. High-quality audio receive circuit. Rugged low-prole metal case with sturdy belt
clip. Recessed volume control. Power on indicator. One 3-pin XLR connector for party line connection. ¼ inch phone jack for
earphone or earset. Uses same cables and wall plates as BP-1002. Powered from party line.
Volume Control
Use this control to adjust the headphone/earset listen level.
On Indicator
This LED glows green when the belt pack is connected to an intercom channel that is functioning.
Headphone/Earset Connector
This connector accepts a wide-response earset, such as the Telex® EMV-2 (catalog number 60194-001), with a ¼” monaural
phone plug.
Intercom Channel Connectors
The IFB-1000 intercom channel is connected via a 3-pin female connector. The IFB-1000 is powered from the intercom sys-
tem power supply and will turn on with the intercom system.
Clear-Com™ Compatible
Features
Line Drawing

IFB-1000 Specications
General
Channel Supplied Power Requirements:
+24 VDC nominal (standard Audiocom® 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” (82.6 mm) high, 3.5” (88.9 mm) wide, 1.8” (45.7 mm) deep
Weight: 1.0 pounds (0.45 kg)
Interface Requirements
Earset:
150 to 600 ohm headphones
Balanced Intercom Channel Level & Impedance:
1 Vrms nominal; 300 Ω ±5%
Noise Contribution:
Less than -60 dB on the line.
Headphone Amplier
Voltage Gain:
27 ±3 dB from the line
Maximum Output:
60 mW into 150 Ω
Frequency Response:
200 Hz to 8 kHz +1/-3 dB
Connector Pin Congurations
Headphone Connector:
Type: ¼” Monaural Plug
Sleeve Headset audio low
Tip Headset audio high
Ordering Information
IFB-1000
Belt Pack
Catalog Number: 90007477000
This specications information is preliminary and is subject to change without notication.
Brand names mentioned are the property of their respective companies.
Contact Information
Telex Communications, Inc.
12000 Portland Avenue South
Burnsville, Minnesota 55337
Telephone: [phone]
Fax: [phone]
Form Number: PA20311
Date: February, 2006