GE NetworX NX-7002 - Manual (Page 12)

Testing the RSSI value
During the enrolling procedure, it is mandatory to check the RSSI value (signal strength) of the
NX-7002 GPRS module and record it in the system documentation. The RSSI value is linked to
the signal level of the GSM network and ranges from 0-31 with 99 as unknown. The RSSI value
may change due to environmental circumstances, for example, additional furniture or metal
constructions. If an RSSI reading is not satisfactory, move the antenna to get a better
reception.
VALUE DESCRIPTION
Between 1 and 4 The module will not work properly and must be moved to
another location.
Between 5 and 9 The module will work but ideally should be moved to another
location.
Between 10 and 16 These are normal working values for the module located at a
longer distance from the receiver.
Above 17 Perfect conditions.
• Enter programming mode.
• Press 78# to select the NX-7002 GPRS module.
• Press 172# to select the Current GPRS RSSI location.
• Note the RSSI reading and quit programming.
Testing the GSM and GPRS connection
• Enter programming mode.
• Press 78# to select the NX-7002 GPRS module.
• Press 174# to select the Device status flags location.
• Check that the SIM card PIN is not blocked: option 1 and option 2 should be ON.
• Check that the SIM card is logged onto the GSM network: option 3 should be ON.
• Verify if the module is logged into the GPRS network: option 7 should be ON.
• Quit programming mode.
See NX-7002 layout and description for an overview of the different Status LED’s on the NX-
7002.
NX-7002 Installation manual Page 12 09/02/05