User manual

Data settings
Baud Rate (press 0# followed by 541)
The speed of the serial interface can be configured using this option. The default
setting is auto-baud rate detection which is suitable for GPRS, Fax, Modem and
NMEA GPS data. For special cases a manual setting can be selected in the range
300 to 115200.
Note that some PC software may use more than one baud rate,
so it would then be essential to use the auto baud setting.
This diagram shows a PBX or a phone connected to the DTM, a PC using the
DTM for modem, high speed GPRS connection or for fax communication. Also a
device that utilises the DTM remote alert function.
Service Settings
Signal Test (press 0# followed by 5131)
This function shows the signal strength in two forms:
a) The level in -dBm (the logarithmic scale relative to 1mw into 600Ω).
The displayed range is -113dBm (a very weak signal) to -51dBm (a very
strong sgnal).
b) The dBm level expressed as a percentage of the range as defined above.
The signal display is updated several times per second so this can be used to
adjust the antenna in real time to find the optimal position (a smaller -db figure
is better). If the signal is too weak, consider using a directional antenna which
will offer a significant improvement. Consult your supplier for details.
Show supply voltage (press 0# followed by 5132)
This shows the power supply voltage between 8 and 32 volts. This measurement
is quite accurate (± 100mV) and can be used to determine the health of the
power supply. If the voltage is outside this range, take steps to correct the
situation.
Show temperature (press 0# followed by 5133)
This shows the temperature of the transmitter circuit inside the unit. The unit will
work perfectly under normal environmental conditions but in extreme heat such
as prolonged direct strong sunlight and high ambient temperature it is possible
for the transmitter circuit to get excessively hot. No harm will come to the unit
as it protects itself by shutting down (terminating the call) but viewing the
temperature with this facility can provide an early indication that the environment
is too hot.
Note that when transmitting continuously, the temperature of the circuitry rises
to about 10˚C above idle condition. The idle temperature is typically about 4˚C
above ambient.
Restore Factory (press 0# followed by 514)
This returns the terminal to factory settings, apart from the terminal PIN
Section 22
Service settings
32 33
Section 22
Service settings
Telephone/
PBX
Burnside
Desktop
Mobile WO
GSM/GPRS
Mobile Network
Antenna
Mobile Phone
Figure 9: Example configuration
PC or Mac
Alarm