Viking HF-2WC Instrucciones de uso
Simply page the intended employee with a question and they can respond by
talking toward the paging horn.
• Two-way paging speaker included
• 25-50 foot operating range
• Paging volume control
• Talk back volume control
• Optional second speaker may be added
The HF-2WC handsfree paging unit allows
employees to respond to a paging message
without reaching for the telephone. It is
perfect for use in city desks, shipping and
service applications where quick answers are
needed.
Allow Employees to Respond to
Paging Messages, Handsfree!
VIKING©
Technical Practice
Telecommunication Peripheral Products HF-2WC
Handsfree Talkback
Amplifier
September 17, 1998
Features Applications
Sales...(715) 386 - 8861
Made in the U.S.A.
Power: 120V AC/13.8V AC 1.25A, UL listed adapter provided
Dimensions: 133mm x 89mm x 44mm (5.25” x 3.5” x 1.75”)
Shipping Weight: 1.36 kg (3 lbs.)
Environmental: 0°C to 32°C (32°F to 90°F) with 5% to 95% non-
condensing humidity
Talk Battery: 12V DC
Speaker: (1) 25AE 8 ohm 5 watt horn included, (2) maximum
Connections: RJ11 and screw terminal strip
Maximum Speaker Run: 91 m (300 ft) maximum, 18 AWG
Amplifier: 2 watt output power
Specifications
• City desks
• Shipping docks
• Production floors
• Service desks
• Warehouses
http://www.VikingElectronics.com
The HF-2WC generates its own talk battery
and will interface with unused trunk ports on
PABX’s and key systems or with single line
phones.
Paging and microphone volume sensitivity controls are provided.
TALK BACK
Printed in the U.S.A. ZF280370 Rev DFax Back Doc # 480
Due to the dynamic nature of the product design, the information contained in this document is subject to change without notice. Viking
Electronics, its affiliates and/or subsidiaries assume no responsibility for errors and/or omissions contained in this information. Revisions of
this document or new editions of it may be issued to incorporate such changes.
Product Support Line...(715) 386-8666 Fax Back Line...(715) 386-4345
25AE Paging Horn
Single
Line Phone
VIKING©
MODEL HF-2WC
POWER - 13.5V AC 1 2 3 4 5
UNUSED
TRUNK
INPUT
HANDS-FREE TALK-BACK
PAGING SYSTEM
VIKING
ELECTRONICS
HUDSON, WI 54016
PAGING
Paging Volume Control
+-+-
Talk-Back Volume Control
120V AC
Installation
Programming
or
Unused PABX/KSU
Trunk Port
Note: Turn the Paging
Volume Control counter
clockwise (+) to increase paging
volume, clockwise (-) to
decrease paging volume.
Note: Turn the Talk-Bac
k
Volume Control counter
clockwise (+) to increase
microphone sensitivity,
clockwise (-) to decrease
microphone sensitivity.
Under a normal background noise environment, set the Paging Volume Control so that the page may be heard as
required. Then set the Talk-Back Volume Control in the middle between the “+” and “-” position. Test talk-back to be
sure that the HF-2WC will switch between paging and talk-back for your desired operating range and noise level. Adjust
the Talk-Back Volume Control as necessary for your environment. The louder the ambient noise level, the more you
will have to decrease the microphone sensitivity and the smaller your talk-back range will be.
If the background noise is too loud for the HF-2WC to operate properly, you may have to add a “Push to Talk” button as
shown in the diagram below.
R9 CR8
100Ω1/4W
Resistor
Normally
Closed
Button
Whenever the button is pressed,
the talk-back will be activated.
Whenever the button is released,
the HF-2WC will function only as
a one-way paging unit.
HF-2WC Circuit Board Layout
Cut this end of CR8
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