Page 55
490X Engineer’s Reference Guide
47) Enter Phone Number 2 followed by Yes.
The display will show:-
48) Press Yes. The display will show:-
This option refers to the line mode of the telephone line. In the UK most
telephone lines are Tone Dial.
49) Press No until the required setting is displayed then
press Yes. The display will show:-
Settings available for Line Monitor are.
Tone + Volts The Line Monitor will check the Dial Tone and the Line Voltage
This setting should be used when the control panel is
connected to a dedicated telephone line.
Off Line Monitor is turned Off
Dial Tone The Line Monitor will only monitor the Dial Tone. This setting
should only be used on a dedicated telephone line.
Line Volts Then Line Monitor will monitor the Line Voltage. This setting
should be used when the control panel is connected to a
telephone line that has other telephone equipment on it
(shared line).
50) Press No until the required setting is displayed
then press Yes. The display will show:-
Settings available for Line Security are:-
High The Line Voltage is monitored at a High Level. This setting should
be used on dedicated lines only.
Low The Line Voltage is monitored at a Low Level. This setting should
be used when the control panel is sharing the line with other
telephone equipment.
Inhibit Display
of New Number ?
Dial = Tone
Line Monitor
= Tone + Volts
Line Security
= High
490X 1.qxd 11/07/2006 12:32 Page 55
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