Version 0.1
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Batteryless telephone system with public address mode BLTS-1006
If external power network is unavailable, do not provide any of abovementioned
steps. The System is ready for operation immediately.
3.3
Use of the System
Before using the System, make sure that you observed 3.2.2 and 3.2.3.
3.3.1
To select a user (connection of call)
Select a System user from any сommutator telephone. Telephones have fixed
wired connection only to one user (telephone or сommutator telephone).
To select a user, group or all users on a сommutator telephone, transfer «User»
toggle switch to top position. If power is available, LED of the selected user line will start
glowing; and if power is not available – the LED will glow only during a call, i.e. while
rotating handle of EG.
3.3.2
To initiate a call. All users call
Initiate a call of BTC network user from any System telephone or сommutator
telephone.
Pick up a receiver or put on external communication device, initiate a call, and
wait for the answer (see 3.3.4). On the сommutator telephones - prior to that, set up a
connection with called user – switch on a toggle switch (see 3.3.1).
To initiate a call, press and hold Call button, if power is available; if power is not
available – rotate a cycle of inductor. In both cases, Call LED will start glowing and emit
low intermittent sound signal; in the second case – LIO will glow additionally.
Initiate a call to group of users or all users from сommutator telephone in the same
way; but prior to that switch on corresponding toggles.
Called telephone actuates incoming call signaling; answer the call and establish
communication session (see 3.3.4).
To finish the call, release Call button or stop rotating the inductor.
3.3.3
To accept a call
During incoming call, telephone or сommutator telephone actuates integrated
light and sound signaling, as well as external signaling (if power supply is available and
any units connected). Сommutator telephones additionally actuate light indication of user
line number.
Note – Operation mode of incoming call signaling depends on provided settings
of relay unit (see 2.2.4.2).
