Videx 280N1 User Instructions

VIDEX ART.280N1 USER INSTRUCTIONS
Art.280N1 Telephone Interface Unit
Description The 280 telephone interface allows a conventional telephone to be
connected to a Videx door entry system. The telephone can be either tone or pulse
dial. The unit also incorporates the facility to divert a door panel call to a pre-
programmed telephone number.
Important installation notes:-
1. A maximum of two telephones can be connected to the output of the
Art280.
2. Only one master socket should be connected to the output of the Art280.
3. Any other telecom equipment such as Sky, Red care, Faxes, modems
should be connected before the Art280.
4. When using the Art280N1 in divert mode the speech volume levels will be
lower than when used in normal mode. This is normal and is caused by a
10dB difference from the telephone exchange.
5. If the microphone volume at the door station is adjusted too high, it could
prevent the DTMF tones from being used to open the door or trigger any
of the other special features. The same problem could occur if there is
excessive back ground noise at the door station.
6. Telephone line or mains interference can cause problems for the
Artr280N1 to identify DTMF tones.
Connections to the telephone line Each telephone line coming into your home or
office must be fitted with a six pin primary socket installed by the PTO (Public
Telecommunication Operator). It is illegal to tamper in any way with this primary
socket and you can not install it yourself. Additional connections to the primary
socket must be carried out using a BT style plug (You cannot connect directly to the
terminals inside). The ART280 telephone interface unit is supplied with a BT style
plug. For more information, see relevant paper work supplied with extension sockets.
Using a conventional telephone it is possible to do the following :
• Make and receive outside calls. (Normal Ring)
• Receive calls from the door station. (Quick double ring)
• Open the door.
• Open the speech lines to the door.
• Place a call on hold while another call is answered.
• Activate an auxiliary output for 1 second [Aux1]. This is an open collector output.
(Can be used for a number of different aux. Equipment such as opening an
additional gate or door).
• Another open collector output [Aux] will activate throughout the conversation.
(Can be used to switch a camera on etc.)
• Divert a call to a pre-programmed telephone number.
• Dial into the art280 from a remote telephone.
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280InstN2.