Wheelock TBH-104 Manuals

273 Branchport Avenue Long Branch, N.J. 07740 (732) 222-6880 INSTALLATION INSTRUCTIONS TALKBACK HORN SYSTEM MODEL NUMBER: TBH-104 APPLICATION INFORMATION: WARNING: ANY MATERIAL EXTRAPOLATED FROM THIS DOCUMENT OR FROM WHEELOCK MANUALS OR OTHER DOCUMENTS DESCRIBING THE PRODUCT FOR USE IN PROMOTIONAL OR ADVERTISING CLAIMS, OR FOR ANY OTHER USE, INCLUDING DESCRIPTION OF THE PRODUCT'S APPLICATION, OPERATION, INSTALLATION AND TESTING IS USED AT THE SOLE RISK OF THE USER AND WHEELOCK WILL NOT HAVE ANY LIABILITY FOR SUCH USE. The TBH-104 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 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 is compatible with most EKSU, KSU (1A2) and PABX systems. The TBH-104 may be used in single zone or multi-zone applications. For typical connection applications for the TBH-104, See Figure 2. The 4 watt voice paging capability of the TBH-104 is ideal for use in noisy environments or for large areas. The talkback capability of the TBH-104 will effectively service up to 1000 square feet, depending upon the background noise level. See Figure 1 and Chart 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. 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 Chart 1: Typical Noise Levels Figure 2: Talkback/Paging Connections & Applications Figure 2A: Optional S-H8 Second Horn Connection CAUTION: These devices are not intended for use in hazardous locations as defined by the National Electrical Code (NEC) and by the National Fire Protection Association (NFPA). Copyright 1988, 1989, 1990, 1991, 1993, 1994 Wheelock, Inc. All rights reserved. P81752 G Sheet 1 of 4 NOTES: