AH-5A BOGEN COMMUNICATIONS, AH-5A Datasheet - Page 54

• Manufacturer Part Number: AH-5A
• Description: Amplified Speaker/horn
• Manufacturer: BOGEN COMMUNICATIONS

Specifications of AH-5A

• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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Accessories
Accessories
Contact Closures & Paging Ports
The VAR1 is ideally suited to provide a set
of contact closures for paging ports
of lower cost telephone systems that do
not have a set of AUX contacts to trigger
paging equipment. An adjustable trigger
threshold keeps noise from falsely trigger-
ing the paging equipment, and the ad-
justable release delay (up to 25 seconds)
keeps the paging system from dropping
out in the middle of a page.
Low Cost Microphone Pre-Amp
The VAR1’s built-in microphone pre-amp is
a low cost and convenient device to use
when a single channel of microphone pre-
amplification is needed. Designed for
balanced, low-impedance dynamic micro-
phones, the VAR1 contains a MIC level
control.
Applications
The TBA15 is an ideal complement to the
ZPM3 (see page 36) for hands-free talk back
in specific areas. Here are a few examples:
Stock Rooms:
paged with a question on availability and the
stock clerk can simply shout back the answer,
no matter where he/she is or what he/she is
doing.
Commercial Kitchens:
communications between cooks and wait
staff. This keeps the cook’s hands off the tele-
phone and on the meal, which is more sani-
tary and more efficient.
Security:
surveillance of remote areas. Simply dial up
the zone for an area and listen for activity...
even the tiniest sounds can be heard.
By adding speakers, a large area can be mon-
itored for activity. You can announce into
these same areas, too.
12V DC Power
PRS40C
This is a perfect way to get audio
Supply
A large stock area can be
TAMB
Telephone
Access Module
ZPM3
Zone Paging
Module
Allows hands-free
VOICE-ACTIVATED RELAY
The VAR1 is a relay device that monitors audio activity over a wide range of input
voltages and operates two sets of C-Form relay contacts in response to detected activity.
The VAR1 can be used to detect voltages as low as signals directly from a microphone
or as high as signals from 70V speaker systems. A low-level output of the detected audio,
transformer-isolated from the input, is also made available for use with other equipment.
Can also be used as a balanced, low-impedance mic pre-amp.
P r o d u c t F e a t u r e s :
TALK BACK AMPLIFIER
The TBA15 is a unique amplifier that permits loudspeakers to be used as microphones to
provide hands-free, two-way conversations through the paging system*. In the idle state,
the TBA15 uses the attached speakers as microphones and feeds this signal out to a tele-
phone line. When the TBA15 senses a paging signal on the telephone line, it will switch on
its 15W amplifier and use the speakers conventionally.
P r o d u c t F e a t u r e s :
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paging system
Hands-free 2-way conversations through the
15 watts of speaker power
switching from listen to talk
chopping of pages and provides smooth
2-way conversations
Talk Back and page volume controls
Mute input forces amplifier into page mode
FCC Part 68 approved
Works on 25V and 70V speaker systems
Adjustable switching sensitivity control for
Adjustable switch-back delay prevents
Wall or 19" rack mount
and 70V speaker systems
level output of detected audio available
paging systems
TBA15
respond to audio activity
4 levels of input signals: microphone, 600-ohm line, 25V,
Built-in balanced, low noise, high gain microphone pre-amp
A transformer-isolated, 600-ohm small signal
Works with self-amplified or central-amplified
Adjustable release delay – 0.25s to 25s
Trigger threshold adjustment
Two sets of C-Form (both N.O. and N.C.) relay contacts
Separate microphone pre-amp gain control
Relay active indicator light
VAR1
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* Page port connection should be a duplex line for
applications
Perfect accessory for zone paging
No moving parts for high reliability
Resettable circuit breaker
talk back applications.
w/ thermal protection
Requirements
120V AC
Power
24V DC @ 100 mA
Requirements
External 12V to
(not included)
Power
19" W x 5-1/4" H x 2-5/8" D
5-3/8" W x 3-7/8" H
Dimensions
Dimensions
x 1-3/8" D
Product
Weight
Product
Weight
1 lb.
7 lb.