61 - iRIS 220 / iRIS 320, V1.19 User Guide
8 Troubleshooting
This section offers possible answers to common installation and/or configuration issues.
8.1 IRIS will not start when battery is first connected
Check that the battery voltage is at least 12.2V. The internal battery management hardware is designed to shut the unit down when the battery becomes discharged to a certain point. It will not restart unless the battery is deemed to have sufficient capacity for normal operation.
8.2 Unable to connect to GPRS network
SIM Card: Check the SIM card is active and enabled for GPRS service.
APN:The unit must be configured for a valid APN that must also match the SIM account APN.
Signal: The iRIS will not attempt to connect if the RSSI is less than 6. Use a higher gain antenna if the signal strength is marginal.
Settings: The iRIS will not attempt to connect unless both Socket A and Socket B settings are defined. (IP address and port number are
See Appendix F for a list of the network settings for the iQuest APN or iQuest Global Data Network.
8.3 Unable to connect to CDMA network
Account: Check the account is active and the CDMA data service is enabled.
Signal: The iRIS will not attempt to connect if the RSSI is less than 6. Use a higher gain antenna if the signal strength is marginal.
Settings: The iRIS will not attempt to connect unless both Socket A and Socket B settings are defined. (IP address and port number are
See Appendix F for a list of the network settings for the iQuest APN or iQuest Global Data Network.
8.4 iRIS will not respond to SMS requests
Account: Check the account is active and the SMS service is enabled.
Power Mode: If full power save is selected, the wireless modem is shut down.
Connection: If the iRIS is connected on an IP (GPRS or
Voice Call: If an iRIS 320V is connected on a voice call, the SMS feature is unavailable.
8.5 iRIS will not answer CSD data calls
Power Mode: If full power save is selected, the wireless modem is shut down.
Connection: If the iRIS is connected on an IP (GPRS or
Voice Call: If an iRIS 320V is connected on a voice call, the CSD feature is unavailable.
8.6 Pulse lost when iRIS connected to other equipment
In almost all installations where an iRIS is connected in parallel with other equipment to share a common pulse input (e.g: from a flow meter) there has not been a detrimental effect, as the iRIS 320 presents relatively high impedance to the circuit.
However, in the event that connecting an iRIS does cause pulse failure, try removing the debounce selection link for the appropriate input. This sets the input to electronic switching mode, even if the actual pulse source is a clean contact (reed switch or similar). See Section 3.4.5 for details on the digital inputs.
