Valcom V-2920 Manual de usuario descargar pdf (Pagina 10)

10 947100

• Jobs requiring explosion-proof systems are easily accommodated.

• Amplified one-way speakers can interface 70 volt systems without changing or adding central amplifier.

• Many localities require conduit for "high voltage" (Class 1) conductors, this is rarely a necessity with a

distributed amplified system.

• The rated output of a distributed amplified paging speaker or horn is always available due to the fact that the

actual audio signal amplification is accomplished on an individual basis. In a 70 volt system, the rated output is

only available if the central amplifier is actually providing a full 70 volts to the speaker or horn and the audio

signal line losses are negligible.

• Background music is unaffected in zones that are not currently being paged.

Table 9

Ceiling

Speaker Bridge Backbox

Bridge/Backbox

Combo Flamex® Metal

V-1010C V-9904M-5 V-9915M-5* - - X

V-1020C,

V-1060A,

V-1220C

V-9914-5

V-9915M

V-9915*

V-9915M-5

V-9916

V-9916M

V-1021C V-9914-5 or

V-9918

plaster ring

V-9915 V-9916 X -

The V-9914-5 Bridge and the V-9915 Backbox are made of Borg-Warner Flamex® fire retardant (94-0) material.

The V-9904M-5, V-9914M-5, and V-9915M-5 metal bridges and backboxes may only be ordered in multiples of

five (5).

*Must use corresponding bridge.

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Valcom V-2920 Manual de usuario Pagina 10