
PAGE 9 of 24 VR4K (4+1) SERIES TECHNICAL MANUAL VER1.1
VIDEOPHONES & MONITORS
Art.3312
DIP SWITCH SETTINGS
The Art.3312 (3412 for colour) includes a lock release push
button, camera recall button and three dry contact push to
make spare push buttons for other services. Coax and non-
coax video can be used by setting the relevant dip-
switches. An Art.3980 back plate is required with this
videophone.
CONNECTIONS:-
Terminal Signal Function
1 +12V Out +12V out to power video splitter
2 TV1 Camera recall (● Button)
3 TV2 Spare button (●● Button)
4 1 +20V power input
5 2 Door release command
6 3 Transmit speech to door panel
7 4 Receive speech from door panel
8 5 Speech Ground
9 6 Video power ground
10 7 Local call tone input
11 V/V1 Coax centre core or balance video –sync (V1)
12 M/V2 Coax Screen or balanced video +sync (V2)
13 R Speech common for intercommunicating systems
14 C Call tone input
15 - Speech ground for intercommunicating systems
16 T Common of spare buttons
17 1T Spare button
18 2T Spare button
9 + Coax
Or
11 cores
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