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Batteryless telephone system with public address mode BLTS-1006
Intercom helmets are produced in three sizes. For the helmet sizes, see Table 6.
Measure head size by perimeter of circle, in centimeters, back point - the most exceeding
point of the head back, front point - above the brows. Use centimeter line to measure the
size.
Table 6 – Conditional size of intercom helmet
Conditional size of intercom helmet
Head size, cm
I
Max. 56 inclusive
II
57, 58, 59
III
60, 61
Before operation, put on a helmet and adjust its size using adjustments belts at the
top and under the chin; regulate the convenient length.
Fix throat microphone on the neck using neck belt; adjust its length.
Intercom helmets operation does not require any special settings.
Intercom helmets TH-4М and TH-4L ensure talk-back communication under
max. noise 115 dB and 130 dB, respectively.
2.2.7
Metal cabinet BLTS-BO
The System includes metal cabinets BLTS-BO, hinged type, waterproof, designed
for installation on open deck.
It is a metal cabinet with a door made of painted steel. The door is equipped with
a lock, opened / closed outside by double bitted key. Lower part has cable glands for
external connections.
The cabinet may house any telephone or сommutator telephone with any commu-
nication device.
