© Kurth Electronic GmbH, All Rights Reserved
9
Monitor mode
Pressing the
F4 = MON
key activates the monitor mode, in which a data-safe,
high-impedance listening („monitoring“) of the line is possible.
In monitor mode, the second line of the display shows from left to right:
M
For
MON
itor mude
T oder P Set dial, tone or pulse
- oder I Low Voltage Lockout off or on
- oder 0 One-position counter for charge pulse
Batterie Display of battery capacity
+005
Display of polarity (- or +) and three-digit display of line voltage,
max. 199 V
If connected correctly to the line, the A-wire is
minus
and the B-wire is
plus
.
Listening into the line can be done either by using the handset or the loudspe-
aker. This makes it easy to limit disturbances such as earth voltage, noise,
etc. or to determine that the line is occupied.
The open listening mode is activated with the
SPKR On / Off
on the display
side. The volume can be adjusted in 6 steps with the
Vol +
and
Vol -
keys.
These keys are greatly delayed to prevent incorrect operation.
In monitor mode the
DIGIT-GRABBER
function is active. The
DIGIT-GRAB-
BER
function decodes the number dialed by the terminal (e.g. telephone,
fax, modem, alarm dialer) and displays it. The maximum length displayed is
48 characters.
CID RCL (Caller ID Recall)
The
CID RCL
key stores all transmitted information of the last three calls (e.g.
phone number, name, date and time), if offered by the network operator. In
talk mode, the stored information can be recalled by pressing the key repea-
tedly and selected with
SEL
.
