Videx SENTRY Manuel d'utilisateur télécharger pdf (Page 7)

PAGE 5 of 29 SENTRY TECHNICAL MANUAL VER1.6

Art. 893N

Art.701

OPTIONAL ISOLATION PCB

20Vdc 800mA continuous 1A surge PSU. This power supply only

has an output when either a 0V is applied to –C or when a voltage

is applied to +C. At all other times the + output is switched off.

Connection Function

230V~ 0 Mains voltage input

+ Switched 20Vdc output (Triggered by –C or +C)

- 0V

-C 0V trigger input (From 4V to 0V)

+C + volts trigger input (From 8V up to 30V)

D+ +20Vdc output via diode

BST/GMT digital time clock. This time clock operates from a 12Vac

or dc power supply. The output is a dry contact relay. When used

with the Sentry control system the relay is used to short the time

clock inputs on the sentry PCB which will in turn enable the trade

button input to accept a short from a trade button. This will then

energise the lock relay on the Sentry PCB.

Connection Function

+ 12Vac or dc voltage input

- 0V

TR Not used with Sentry system

C Common connection on relay

NO Normally open connection on relay

NC Normally closed connection on relay

For more information see time clock instruction sheet

An isolation card will prevent a fault in a single

apartment affecting the rest of the system. The

isolation card has four channels (One card required

for every four apartments) and can be mounted in

the main control cabinet or in riser boxes.

Operation:

The isolation card will trigger an output when it

receives a positive voltage on either A, B, C or D.

The output will stay triggered as long as the SW+

terminal has 12 volts present. Once the 12V is

removed from the SW+ terminal the output will

switch back into isolated mode. The inputs A-D are

from the call buttons at the door panel and the SW+

is switched by the Sentry PCB (Terminal 3 of the

amp). Four LED’s on the PCB indicate when an

output is live.

Power and phone commons from Sentry

PCB

Select lines from call buttons

Call tone & +12V to phones fuse

Phone connections to apartment

Output live LED

1 2 3 4 5 6 7 8 9 10 11 12 ... 31 32

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Videx SENTRY Manuel d'utilisateur Page 7

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