Bogen TAMB2 Telephone Accessories - User Manual and Connections Guide

Connections to a Music Source

AUDIO OUT

MUSIC SOURCE

The TAMB2ʼs Music Input will combine a stereo signal into mono or a mono source can be connected to either of the two RCA jacks. The MUSIC control is used to set the level of the music source when playing through the paging system. Set the level of the page using the amplifierʼs level control, then use the TAMB2 music control to set the background music level.

IMPORTANT NOTE: When using the TAMB2 in ground start trunk mode with a music source that uses a 3-prong grounded plug, it may be necessary to use WMT1A transformers to isolate the music sourcesʼ outputs from the TAMB2ʼs music inputs. The music sourceʼs signal ground, which may be connected to the the AC line ground, could create an elec- trical short with the connection from the TAMB2ʼs G/S terminal to the PBX ground (which is typically the AC ground for the PBX) causing the TAMB2 not to function.

Power Supply Connections

24VDC

150mA

24VDC

150mA or greater

(user supplied)

All operational modes of the TAMB2 require the connection of a user- supplied 24V DC power supply. The connection polarity is marked on the unit. The supply input is polarity-protected so that reversed polarity will not damage the unit, but it will not operate until the condition is corrected.

When using multiple TAMB2ʼs in an installation, it may be more con- venient to use a single, user-supplied power supply and wire the power terminals of the multiple units together. When doing this, make sure the power supply is 24V DC and can supply 0.15A x the units being powered.

Rotary Control Functions

PAGING TIME

This control is used to set the maximum paging time within the Paging Time Range set by DIP switches 8 & 9. MIN Time is the lowest time of the selected range, MAX Time is the longest time. The control is linear and the “tick” marks represent 5 or 10 second (approx.) intervals, depending on range set, to make setting a specific time simple. The Paging Timer can be inhibited.

VOX DELAY

This control sets the period of silence that must elapse for the unit to determine that paging activity has likely ended. The “tick” marks represent 1-second (approx.) intervals. This timer can be inhibited.

TONE

This control sets the level of the audible tone that indicates that the paging connection has been established. The tone cannot be inhibited, but the volume can be turned down so it cannot be heard.

MUSIC

This control sets the level of an external audio source feeding the paging amplifier when no page is active.