Marginal Rf Signal; Wireless Reception Issues - Bosch Conettix ITS-DX4020-G Installation And Operation Manual

GPRS/GSM IP Communicator
7.2.17

Marginal RF Signal

Description:
Marginal signal strength: -89 dBm to -83 dBm. Bosch Security Systems, Inc. recommends
trying to improve the signal further because this signal strength is near unacceptable levels.
Poor weather and other environmental conditions can make this signal unacceptable. This
signal level results in a trouble condition if the low signal strength setting for the
ITS-DX4020-G is enabled.
Solution:
To improve the signal strength, try the recommendations described in Section 7.2.18 Wireless
Reception Issues, page 49.
7.2.18

Wireless Reception Issues

Causes:
The wireless antenna is not installed in an optimal location, or the wireless service provider is
experiencing technical difficulties.
Solution:
1.
2.
3.
4.
5.
6.
7.
8.
9.
Bosch Security Systems, Inc.
Verify that you have the antenna attached to a metal surface, and that there is a minimum
of 4 in. (10 cm) from the base of the antenna in all directions.
Check the antenna connection at the module.
Check the antenna connector is hand tight at the base.
Install the CONFIG jumper to monitor the GSM signal LEDs.
Relocate the antenna on a metal surface, such as the top of the control panel enclosure.
Check the signal on an unlocked mobile phone from the same carrier, if available.
If the signal on the phone is good, but the ITS-DX4020-G signal is not good, replace the
antenna.
If the signal on the mobile phone and on the ITS-DX4020-G are bad, check for outages
with the wireless service provider.
If there are no carrier outages, try using a SIM from a different carrier/service provider.
Installation and Operation Guide
Troubleshooting | en 49
F01U163066 | 01 | 2010.05