Version 0.1
16
Batteryless telephone system with public address mode BLTS-1006
2
DESCRIPTION AND OPERATION OF THE SYSTEM COMPONENTS
2.1
Description of the SC
2.1.1
Сommutator telephones
The System includes three types of сommutator telephones:
‒ wall mounted PH2-хC-W (where х – 5, 10, 15, 20 or 25);
‒ panel mounted PH2-хC-P (where х – 5, 10, 15, 20 or 25);
‒ portable PH2-5C-PO.
Portable сommutator telephone PH2-5C-PO type ensures connection (via socket
S-BLT) to user network and pair or group communication (max. 5) with System users in
pair or general list (all) modes.
Other types provide for user networks with capacity 5, 10, 15, 20, 25 lines for pair
and group communication with users of their own network in pair and general list (all)
modes.
Use toggle-switches to select users of the assigned lines.
All сommutator telephones are equipped with a telephone receiver (corded) to pro-
vide for two-way communication with other users.
External communication devices (headsets and intercom helmets) may be con-
nected to all сommutator telephones directly or using socket PB-HS type. Connections of
external communication devices are shown in Figure 5.
Figure 5 – Connections of external communication devices to telephones (сommutator
telephones)
All сommutator telephones, except portable PH2-5C-PO, ensure control (accord-
ing to scheme – electric circuit switch) over external signaling units and repeat (if neces-
sary) incoming call with light and (or) sound signaling.
Connections of external signaling units are shown in Figure 6.
