Europlex 3GS, Manual

Page: 103 / 386

Issue 4.5 August 2005 Serial Communications 6-5
Remote Communication via DM1200
The DM1200 is Europlex’s 16 channel digital
communicator/modem with 1200 baud serial comms
capability. Serial port 2 on the 3GS defaults to DM1200
settings.
The DM1200 monitors the 3GS’s control line to
determine the state of the outputs. These outputs can be
mapped to the channels of the DM1200, which can
number 16 in fast format and 8 in slow format.
If an output changes state and the delay timer has
expired, the DM1200 seizes the phone line
(disconnecting any other apparatus connected) and dials
a pre-programmed number. The appropriate signals are
sent to the alarm central station receiver, indicating the
type of alarm.
Programming of the DM1200 can be performed through
the 3GS RKD – see DM1200 in 3GS Peripherals for
further information.
Note To connect remote communication devices
for use with PC software, you must connect a
modem to the PC and a DM1200 to the panel. This
is the only configuration that will work.
Port 1
DM1200 Terminal Block
Port 2 Port 3
0V 0V 12V
12V TX
TX RX
To Controller terminal
labelled "CNTL".
To Controller terminal
labelled "CNTL".
RX
E 0V
+
12V CN
TL TX RX
E 0V
+1
2V
CN
TL TX RX
2 3
6
5 7 8
3A/4A/6A PSU
3A/4A/6A PSU
Local Serial Printer
Main Instrument
DM1200 3GS
PTT
PSTN
Modem
PC running
Eurodial remote
monitoring software
Printer
Central Station Receiver
DM 1200 SYSTEM CONFIGURATION