
Tech Works, Inc., 7430 Eastgate Road, Suite 130, Henderson, NV 89011
Direct Line: 702-846-1080 Toll Free: 1-800-813-1080
Web site www.tech4people.com 6/17
The Tech Works CI-HSI-41 Headset Combiner
is part of the Collaborative Intercom product
group designed to take standard Plantronics
headsets and let them talk to each other as well
as other Tech works CI-Buss products. The CI-
HSI-41 accommodates up to four Plantronics
CS-540 lightweight, Wireless Headsets. The
headsets communicate with each other, as a
single headset with four summed microphones.
The Intercom can simply plug together using
standard CAT-6 patch cables. When connected
to another unit all headsets become part of that
system. Two CI-HSI-41 can be connected
together to make a single system of up to 8
headsets. The eight headsets act as one unit.
Initial setup is accomplished with built in level
indicator lights and the controls on the
receiver/charging base. Once completed, no
further adjustments should be required.
The CI-HSI-41 can be used as a small stand-
alone Wireless Headset Intercom or as an
addition to systems using microphones,
speakers, and other CI-Buss and PA-Buss
devices. By adding a PA-402 the headset
conversation can be played over ceiling
speakers so observers can hear the
conversation.
When combined with our full duplex, hands-free
intercom and other products the CI-HSI-41
provides a level of flexibility and control
unmatched in communication.
CI-HSI-41
Collaborative Intercom
Headset Combiner
System Planning &
Installation Manual
Associated Equipment
PA-402 Program and Paging Amplifier
CI-ODC-1 Collaborative Intercom
Operator Desk Console
CI-MSI-22 Collaborative Intercom
Microphone Speaker Interface
Design Information
Color: Light Gray metal enclosure
Power: 24VDC, 1A Power Supply (Not
included)
Weight: 2 lbs.
Dimensions: 8.5” W X 6” D X 1.75” H
Architects' and Engineers' Specifications
A 4 headset wireless communication system must be
provided for this project to have hands-free
communication without the use of fixed location
microphones and speakers or hardwired headset
connections. The Headset Combiner must be capable of
connecting at least 4 industry standard telephone
headsets and expandable to 8 headsets. The system must
include Automatic Level Control and the Collaboration
Intercom interface for connection to other Tech Works
CI-BUSS devices for a complete and operable system.
System connections must be via industry standard CAT-6
patch cords. The Headset Combiner shall operate from a
separate UL Listed 24 VDC 1 Amp power source.
The Collaborative Intercom Headset Combiner shall be
Tech Works Model CI-HSI-41
Superior Sound Quality
Low Cost
Total Flexibility
Easy Set Up
Simple integration