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PAGE 9 of 29 SENTRY TECHNICAL MANUAL VER1.6

VIDEOPHONES

901D

Art.3313

The Art.901D (901D/C for colour) includes a lock release

push button and a dry contact push to make spare push

button for other services.

CONNECTIONS:-

Function

1 Transmit speech to the door panel

2 Receive speech from the door panel

T Call tone in from Sentry PCB

P Switch 0V lock trigger command

- 0V

C Select line (Switches on telephone)

V Centre core of coax

M Screen of coax

M 0V

+12 +12V out to power video splitter Art.894

+20 Switched +20V in to power videophone

The Art.3313 (3413 for colour) includes a lock release push button and two dry contact push

to make spare push buttons for other services. An Art.3980 back plate is required with this

videophone.

CONNECTIONS:-

Function

1 +12V out to power video splitter

2 Not used

3 Spare button

4 +20V power input

5 Door release command

6 Transmit speech to door panel

7 Receive speech from door panel

8 0V (Ground)

9 Not used

10 Local call tone input

11 Coax centre core or non-coax sync-

12 Coax Screen or non-coax Sync+

13 Switched +12 for door open LED

14 Select input to switch on videophone

15 Call tone input from Sentry PCB

16 Common of spare buttons

17 Spare button

18 +12V to power videophone privacy

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 31 32

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