19
Version 0.1
Operating manual
Cables of headsets and intercom helmets with character «Р»
in code (identifier)
are equipped with waterproof connector for telephones (сommutator telephones) or
socket PB-HS type.
Headset or intercom helmet may be connected directly (using corresponding con-
nectors or terminal block), or using external junction boxes and sockets PB-HS type, see
Figure 5. The cord CE type may be extended up to 20 m.
2.1.4
External signaling units
Signaling units ensure light, sound or sound-light signaling of incoming call on
telephone (сommutator telephone).
The System includes the following signaling units:
a)
sound signaling unit type А with sound high tone signaling;
b)
light signaling unit type L
and RL with light impulse and flashing signaling;
c)
sound and light signaling unit AL type with light impulse and sound high tone
signaling;
d)
relay unit type RBWSB that switches voltage to signaling units power circuits
by control signals from telephone (сommutator telephone). It ensures call signaling in the
following modes (configure at installation):
–
synchronous – call signaling lasts as long as incoming call;
–
with delay – call signaling will last 10 seconds after the call is finished;
–
continuous – call signaling lasts unless «Reset call» button is pressed on tele-
phone, сommutator telephone or relay unit.
Relay unit is equipped with «Reset call» button to switch off (manually) the sig-
naling in delay or continuous modes.
Signaling units installed on telephone stations shall be powered from power mains
with rated voltage 24 V DC or 220 V AC, frequency 50 (60) Hz.
Signaling units А-24, AL-24, L-24, RL-24 types operate with power mains 24 V
and may be connected to telephones (сommutator telephones) directly and using relay unit.
Signaling units А-220, AL-220, L-220, RL-220 types operate with power mains
220 V and shall be connected to telephones (сommutator telephones) only using relay unit.
