Door Bell Push Button; External Lock Release Activation; Additional Telephone Or Call Repeater - golmar EL620/2Plus Installation Manual

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D
oor bell push button connection.
The T-7720, T-7722VD and T-7822VD telephones, incorporate
as standards the call reception from the door bell push button.
This feature spares the use of a bell, by placing a push button
between the 'HZ' telephone terminals.
The reproduced ringing tones vary depending on their
provenance. This allows the user to distinguish the origin of the
call. If during a conversation a call is made from the entrance
door, some acoustic tones will be heard as a warning that
someone else is calling.
E
xternal lock release push buttons.
To activate the lock release by means of an external push button, place this
push button between 'CV1' and 'CV2' terminals of the door panel,
regardless of the kind of lock release.
It is a very useful function, you needn't take a key when going out of the
building.
A
uxiliary devices connection.
REMEMBER: With the T-7720 and T-7722VD telephones, the number of total elements in every
apartment (telephones or call repeaters) can't never surpass the two units.
With the T-7822VD telephone, the number of total elements in every apartment (telephones or
call repeaters) can't never surpass the three units.
T-7720, T-7722VD
or T-7822VD
BUS HZ HZ
OPTIONAL CONNECTIONS
T-7720, T-7722VD
or T-7822VD
BUS HZ HZ
T-7720, T7722VD
or T-7822VD
BUS HZ HZ
T-7722VD or T-7822VD
S-45
S+ S- S+ S-
EL620/2Plus
CV2 CV1
BUS HZ HZ PA PB