File name: Installation DALMx000 IP_2G_3G EN r3 Page 6 (18)
2.1 Alarms over IP
DALMx000 is connected to the local network in the object by a standard CAT5 network cable and sends
alarms via the Internet using the SOS ACCESS V4 protocol. DALMx000 communicates at 100MBps and
because of the extremely small data amounts delivered, the device usually has no affect at all on other
traffic in the network it is connected to. Alarm protocol ACCESS V4 can be received by any alarm reception
centre equipped with Dualtech´s V4 receiver IPEagleCMS and protocol SIA DC09 by any alarm reception
centre equipped with standard DC09 receiver.
The protocol ACCESS V4 contains a number of vital parameters which are programmed into DALMx000
during system programming. The primary parameters are:
Transmitter code
Programmed into DALMx000 during system programming. Note that IDs that are programmed into
DALMx000 are always used in the event of alarms to the alarm centre, i.e. even in the event of alarms
from connected analogue dialers. Customer IDs sent to DALMx000 from connected diallers are ignored,
which means, during an upgrade of an existing system, the alarm receiver must be informed that the
system changes ID to the ID that is stored in DALMx000.
Authentication
Obtained from the alarm centre and programmed into DALMx000 during system programming. During
commissioning, i.e. at the first alarm transmission to the alarm centre, the password is changed
automatically. The password is then only recognized by the receiving server and DALMx000 (dialer
exchange protection mechanism).
Heartbeat rate
Obtained from the alarm centre according to the agreement with the end customer and programmed into
DALMx000 during system programming. DALMx000 supplies short messages, “Heartbeats”, to the alarm
centre at predetermined intervals (90 s – 25 h). In the event of missing heartbeats from DALMx000 an
alarm is activated at the alarm centre.
Event codes
Event codes for the hard inputs are programmed into DALMx000 in agreement with the reception centre.
DALMx000 also sends predefined event codes (81-85) for the integrated error alarms (GPRS/3G errors
etc.). In the event of an alarm from the connected analogue dialler, event codes are obtained from the
analogue alarm notification (via SIA or Contact ID).
Alarm procedure IP
Alarm procedure via IP:
1. Attempt 1 to primary receiver via fixed Internet connection
2. If unsuccessful: attempt 1 to secondary receiver via fixed Internet connection
3. If unsuccessful: attempt 1 to primary receiver via GPRS/3G
4. If unsuccessful: attempt 1 to secondary receiver via GPRS/3G
5. If unsuccessful: attempt 2 to primary receiver via fixed Internet connection
6. If unsuccessful: attempt 2 to secondary receiver via fixed Internet connection
7. If unsuccessful: attempt 2 to primary receiver via GPRS/3G
etc. until all receivers and alarm paths have been tested four times
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