Medium Security Application - Bosch Conettix ITS-DX4020-G Installation And Operation Manual

GPRS/GSM IP Communicator
4.3.2

Medium Security Application

Polling times are typically 1 to 4 hours. Path integrity is important, and short interruptions in
network service might be indicated at the premise and central station. The following Medium
Security Application recommendation assumes the ITS-DX4020-G is the primary
communication device with no backup.
Control Panel Settings
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ITS-DX4020-G Settings
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NOTICE!
If you use a control panel poll rate of 4 hours, change the default GPRS session timeout to 5
hours. Ensure that your SIM service provider's session timeout is greater than 5 hours. Check
the information that came with the SIM card. If the carrier's session timeout is less than your
GPRS session timeout, the communication path is dropped by the carrier and the event
message is not received until a new connection is made, delaying your event messages from
being delivered when expected. To ensure the communication path is not dropped, set the
poll rate to less than the carrier timeout (for example, 2 hours).
D6x00 Receiver Settings
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NOTICE!
To set the control panel poll rate by the hour, ensure that the D6x00 Receiver has D6200CD
V1.35 firmware or later.
Because the Bosch D6x00 Receivers only have hours and seconds settings, the receiver would
have to be set to 4 hours instead of 3 hours and 30 min. The receiver can only support up to
255 sec maximum for the ACK wait time.
Bosch Security Systems, Inc.
Poll Rate: 3 hours
ACK Wait: 300 sec (5 min)
Retry Count: 5
GPRS ACK Timeout: ACK wait (300 sec) x 2 = 600 sec
By setting the GPRS ACK timeout less than the retry count, the ITS-DX4020-G can
reconnect to the network if the carrier dropped the connection or for short maintenance
interruption outages.
GPRS Session Timeout: Must be greater than control panel poll time (3 hours) + ACK
wait (5 min) x Retry Count (5) + ACK Wait (5 min) = 3 hours and 30 min. The GPRS
session timeout default setting of 4 hours is acceptable.
Control Panel Poll Rate: 4 hours
ACK Wait: 15 sec
Installation and Operation Guide
Configuration | en 31
F01U163066 | 01 | 2010.05