P83676 A
Sheet 1 of 5
273 Branchport Ave.
Long
Branch,
N.J.
07740
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(732) 222-6880
INSTALLATION INSTRUCTIONS
TALKBACK HORN SYSTEM
Use this product according to this instruction manual. Please keep this instruction manual for future reference.
MODEL NUMBER: TBH-104-LH
APPLICATION INFORMATION:
The TBH-104-LH is a two component talkback system which consists of a control unit and an 8 ohm horn, both of which are
designed for indoor or outdoor use. An optional S-H8 8 ohm horn may be added to the TBH-104-LH system when 2 horns are
required. The control unit contains an omni-directional microphone and a preamplifier for talkback. It also contains a 4 watt
amplifier to power the horn which is used for one-way voice paging, background music and tone alerting. The TBH-104-LH is
compatible with most EKSU, KSU (1A2) and PABX systems. The TBH-104-LH may be used in single zone or multi-zone
applications. For typical connection applications for the TBH-104-LH, See Figure 2.
The 4 watt voice paging capability of the TBH-104-LH is ideal for use in noisy environments or for large areas. The talkback
capability of the TBH-104-LH will effectively service up to 1000 square feet, depending upon the background noise level. See Figure
1 and Table 1 for relation between noise and maximum reply distance. The direction of speech is controlled by the calling party (at
the telephone), to prevent false switching of speech direction due to background noise.
NOTE:
All
CAUTIONS
and
WARNINGS
are identified by the symbol
. All warnings are printed in bold capital letters
Location
Machine Shop
Manufacturing (Noisy)
Printing Shop
Assembly Line
Supermarket
Transportation -
Waiting
Room
Office
(Noisy)
Shipping/Warehouse
dB
90
80
80
75
75
75
70
70
Figure 1: Talkback Distance Vs. Ambient Noise
Table 1: Typical Noise Levels
Figure 2: Talkback/Paging Connections & Applications
Figure 2A: Optional S-H8 Second Horn Connection
Copyright 1997 Wheelock, Inc. All rights reserved.
NOTES:
NOT SUPPLIED WITH HORN
