Troubleshooting (continued)
Q. What if the Radio path signal has not been received by the Alarm
Receiving Centre ?
Check, using the 7 segment display that the radio signal is sufficient (FSSI
= 40 or greater) and that the GSM path status = OK.
Check with a meter that the voltage supply to the DualCom is correct and
does not dip when the DualCom is signalling.
See Appendix 1, Table 15 for fault indications. These will help diagnose
radio path problems.
DualCom GPRS is supplied with a Vodafone UK GPRS SIM Card and can
only be used in UK on the Vodafone UK GPRS network.
Check that the SIM Card is inserted in its carrier correctly. See Fig 1.
Q. What if the Wired LAN (IP) signal has not been received by the Alarm
Receiving Centre ?
Check, using the LEDs that no LAN path faults exist. See Appendix 1,
Table 21 for fault indications. These will help diagnose LAN path problems.
Check that the LAN has a route to the Internet. Ensure that Firewalls, Rout-
ers etc will allow external access. Refer to IT staff on site.
Check that the LAN has a DHCP Server function. The LAN card requires
this when first connected to the LAN. Refer to IT staff on site.
Check with a meter that the voltage supply to the DualCom is correct and
does not dip when the DualCom is signalling.
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