BT BT Versatility manual Lan

				BT Versatility
			Installation and Maintenance Manual
External Music on hold	Stereo jack connector (on Options Module)
	Input impedance 10k ohm
	Nominal 775 mV RMS
	MOH Module (if no Options Module installed)
	Input impedance 1k6 ohm
	Nominal 200 mV RMS
External Paging Port	Output Level 25 - 32mA Impedance 600 ohm
System speed dials	Max. 500
Extension current and voltage feed	Voice	36.5 volts 25 mA constant current
	Data	40 volts 10 mA constant current
Dial tone duration	10 s
Programming	Featurephone (default extension 20) or PC Wizard through serial port
Remote access	On ISDN or Analogue Lines. (Built in V32bis modem)
Ringing voltage/frequency	± 40 V 50 Hz (trapezoid)
	Incoming call		400 ms on 200 ms off,
Ringing cadences			400 ms on 2.0 s off
	Internal call		1 s on 2 s off
	Door intercom call		400 ms on 2.6 sec off
	Call recalling		1s on 400 ms off,
			400 ms on 1.2 s off
Tone frequencies	440 Hz ±5 Hz, unless stated otherwise
Tone cadences	Dial Tone		Continuous tone of 440 Hz ±5%
			and 350 Hz ±5% combined
	Special dial tone		800 ms on 800ms off of 440 Hz ±5%
			and 350 Hz ±5% combined
	Ringback tone		1 sec on 2 sec off
	Busy tone		500 ms on 500 ms off
	Congestion tone		200 ms on 200 ms off
	Hold tone		200 ms on 200 ms off,
			200 ms on 3.4 s off
	Conference tone		One burst of 400 ms
	NU tone		Continuous tone
	Call waiting tone		100 ms on 4.9 s off
Environmental requirements	Normal working temperature			0°C to 40°C
	Working humidity (non-condensing)			5% to 95%
	Storage temperature			-40°C to +85°C
	Storage humidity			5% to 95% @60°C
Doorstrike relay contact	Max rating		24 Volts DC
			2 Amps
Safety and protection	EN55022, EN55024, EN60950
Door Intercom Size	Height		203 mm
	Width		73 mm
	Depth		38 mm
Colour of System	Charcoal		ref: Pantone 432C
Internet Module Info	LAN		4 x 10/100 Base-Tx ports
	ADSL		10 Base-T output for an external ADSL modem

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