INSTALLATION & OPERATION MANUAL
IW-HFM-4
Interview Window Intercom System
with Paging and Music Options
Talk-A-Phone Co. • 7530 North Natchez Avenue • Niles, Illinois 60714-3804 Rev. 7/27/09
Phone 773.539.1100 • Fax 773.539.1241 • info@talkaphone.com • www.talkaphone.com
All prices and specifications are subject to change without notice.
Talk-A-Phone, Talk-A-Lert, Scream Alert and WEBS are registered trademarks of Talk-A-Phone Co.
Copyright 2009 Talk-A-Phone Co. All rights reserved.
SYSTEM OVERVIEW
The Interview Window Intercom System is designed for high-quality one-to-one handsfree voice communications and multi-zone paging. It is built to enhance intelligibility
of the human voice through background and outside noises. Installation involves
running one 2-pair cable as a paging bus, and 3-pair cable between a master and its substation.
Speakers, such as outdoor-rated horn speakers or ceiling speakers, may be grouped in
such a way as to create Paging Zones. One Interface Box is used per Zone. Typically, a
Paging Zone consists of 2 or 3 speakers in one room or two nearby rooms. By a simple
dip-switch setting, each master can designate which 2 of up to 6 zones it can page. In
addition, each master can page all zones at once.
Background music or other program material may also be added to the system in such a
way that when one zone is paged, the program source is interrupted in that zone only.
Each zone may have its own program source or zones may share the program material.
This is accomplished by a simple 1-pair connection.
The interviewer can speak to the sub-station in one of three ways: 1) through the builtin microphone in the Master; 2) by speaking into an optional thin gooseneck
microphone; 3) using an optional wireless headset/microphone that allows the
interviewer a free range of movement without interfering with their communication.
Talk-A-Phone Co. • 7530 North Natchez Avenue • Niles, Illinois 60714-3804 Page 2 of 13
Phone 773.539.1100 • Fax 773.539.1241 • info@talkaphone.com • www.talkaphone.com
All prices and specifications are subject to change without notice.
Talk-A-Phone, Talk-A-Lert, Scream Alert and WEBS are registered trademarks of Talk-A-Phone Co.
Copyright 2009 Talk-A-Phone Co. All rights reserved.
INSTALLATION
Each IW-HFM-4 Interview Window Hands-Free Master has four buttons. Pressing
them will cause the master to communicate with: 1) the sub-station directly in front of
them, 2) the paging speakers in their primary zone, 3) the paging speakers of an
alternate zone, and 4) all paging speakers in the system. In order to make the
appropriate dip-switch settings at each IW-HFM-4 Master, you will have to know the
zone number of each IW-IB-6 Interface Box as well as the primary and alternate zone
numbers to be called by each IW-HFM-4 Master.
The Junction Box comes pre-wired with a cable terminating in an RJ45 male connector
which connects to the IW-HFM-4 Master. There is also a jack for a wall transformer on
the Junction Box. This is so that the Junction Box can provide power to the IW-HFS-1
Sub-Station. The IW-HFM-4 has 3 female connectors and one power connection of its
own. The larger RJ45 connector is where the cable from the Junction Box connects. The
other two are for the headset and gooseneck microphone. The Sub-Station and Interface
Box connect to the Euro Strip inside of the Junction Box. The Interface Box also has a
wall transformer connection.
Note: The terms first, next and last Master, when used in these instructions, refer only to
the order that the connections are to be made. The first master is whichever master is
connected first. There are no other differences between any of the Masters.
1. Locating the Master
The Master is designed to sit on a desk or be mounted on a wall. Mounting hardware is
included for both options. For wall mounting, screw the mounting plate (included) to
the wall where Master unit is to be located with appropriate screws. The Master will
later mount on this plate.
Figure 1. Wall Mounting Plates for IW-HFM-4 Master
Talk-A-Phone Co. • 7530 North Natchez Avenue • Niles, Illinois 60714-3804 Page 4 of 13
Phone 773.539.1100 • Fax 773.539.1241 • info@talkaphone.com • www.talkaphone.com
All prices and specifications are subject to change without notice.
Talk-A-Phone, Talk-A-Lert, Scream Alert and WEBS are registered trademarks of Talk-A-Phone Co.
Copyright 2009 Talk-A-Phone Co. All rights reserved.