Bogen TAMB2 User Manual

TAMB2
Telephone Paging Access Module
© 2010 Bogen Communications, Inc. All rights reserved.
Specifications subject to change without notice.
54-2190-02C 1101
The TAMB2 telephone paging access module provides a
means of interfacing various analog telephone port types to
a paging system amplifier to enable a facilityʼs telephone system
to be used to make audio announcements over its paging
system. The TAMB2 will interface to analog loop start and
ground start trunk ports as well as analog ring-up station lines.
It provides a means of connecting an external audio or music
source that will play over the paging system when no pages
are in progress. A set of contacts are provided to signal external
equipment of the TAMB2ʼs operational status. Various DIP
switches and controls provide a wide range of flexibility over
how the access module will operate. The TAMB2 can be
mounted on a wall, mounted as a single unit in a rack (optional
rack mount kit required) or mounted 2-up, side-by-side in a
single rack space.
11s
6
1s
MAX
MAX
TIME
TIME
MIN
MIN
TIME
TIME
100100
1
0
1
VOX ENABLE VOX DIS
CONF TNPRE ANN TN
TRUNK MODE STATION
LOOP START GND START
DETECT CPC IGNORE
0
TONE
TONE
MUSIC
MUSIC
VOX
VOX
DELAY
DELAY
STATION/
TRUNK
PAGE
OUT
ON
PT PR G/S
NO C
TR
24VDC
150mA
CONTACT
CLOSURES
NC
1-RNG DLY
NO TIMER TRNK TMER
ANS IMMED
RANGE (SEC)
INHIBIT
11
100 - 200 01
50 - 100 0
1
1 - 50 00
PAGING
PAGING
TIME
TIME
<
<
<
<
TAMB2
TELEPHONE PAGING ACCESS MODULE
O
N
1
2
3
4
5
6
7
8
9
1 12111098765432
1. DIP Switches - Set various operational functions.
2. On/Power Indicator - When lit, indicates that the unit
is powered on.
3. Paging Time Control - Sets maximum time duration
of a page.
4. VOX Delay Control - Sets maximum silence period
allowed for an active page.
5. Tone Control - Sets the level of an announcement tone
the unit produces.
6. Music Control - Sets the level of an external audio
source that plays through the paging system when
no page is active.
7. Music Input - Hi-impedance unbalanced RCA input
for stereo or mono signals.
8. Station/Trunk - Tip and ring connections to a PBX
or CO line.
9. Page Out - Balanced, 600-ohm audio feed to the
paging amplifier.
10. G/S Terminal - Provides ground return from PBX
when using a ground start trunk port.
11. Contact Closures - One C-form contact set which
changes state when unit is active.
12. 24V DC - User-supplied power supply input; unit
must be powered in all modes of operation.

Bogen TAMB2 Specifications

Power

power requirements	24V DC @ 150mA
auxiliary contact rating	0.6A @ 125V AC resistive, 0.6A @ 110V DC resistive

Operating Environment

operating temperature range	32° – 120°F
paging frequency response	200 – 8000 Hz, ±1 dB
pre-announce/confirmation tones	800 Hz, ±20%, one-half second duration

Weight and Dimensions

dimensions	8-1/2" W x 1-3/4" H x 3" D
shipping weight	2 lb.

Summary

TAMB2 Overview and Controls

Module Overview

Introduces the TAMB2 module and its purpose for interfacing telephone systems with paging amplifiers.

Front Panel Controls

Details the function of each numbered control on the TAMB2 front panel, including DIP switches and rotary controls.

Important Safety Information

Safety Precautions

Essential safety guidelines for installation and operation to prevent hazards like electric shock and damage.

Theory of Operation

Loop Start Interfacing

Explains how the TAMB2 detects DC loop current on tip/ring to activate paging and provide talk battery.

Ground Start Interfacing

Describes the TAMB2's operation with ground start trunks, requiring PBX ground connection for loop current detection.

Station Port Interfacing

Details how the TAMB2 answers station ports based on ring voltage and uses timers/CPC for disconnection.

Trunk Timer Feature

Explains the feature that interrupts loop current to prevent accidental lock-up of the paging system.

Connection Diagrams

Paging Amplifier Input Connections

Illustrates balanced and unbalanced wiring methods for connecting the TAMB2 to a paging amplifier's input.

Telephone Equipment Connections

Shows wiring for connecting the TAMB2 to PBX/CO loop start, station ports, and ground start trunk ports.

Module Features and Setup

Music Source Connection

Details connecting an external music source to the TAMB2's RCA input for playback during idle periods.

Power Supply Requirements

Specifies the need for a user-supplied 24V DC power supply and how to connect multiple units.

Rotary Control Functions

Explains the function of the Paging Time, VOX Delay, Tone, and Music rotary controls on the front panel.

Configuration and Outputs

DIP Switch Settings

Provides detailed instructions for setting various operational functions using the DIP switches for different trunk/station modes.

Contact Closure Signals

Describes the function of the contact closure output for signaling external equipment and lists its electrical ratings.

Installation Methods

Wall Mounting Options

Details two methods for mounting the TAMB2 unit directly onto a wall or flat surface.

Rack Mounting Options

Explains how to mount a single unit or two units side-by-side in a standard rack space using optional kits.

Specifications and Warranty

Technical Specifications

Lists key technical details including registration number, compatibility, frequency response, power, and dimensions.

Limited Warranty Information

Outlines the terms of the limited warranty, exclusions, and procedures for repair service.