exemys GRD-MQ Series, Руководство пользователя

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Signal, SMS, GPRS and broker link Troubleshooting
The GRD does not respond to SMS messages.
If “GRD Config” shows a very low signal level “Ex: -113dB” or SIM status shows
“LOW SIGNAL”)
.
The GRD has no signal. Verify:
That the antenna is correctly connected.
That the GRD is within the coverage area of your cell phone operator.
The SIM card status indicates failure.
The GRD is not accepting the SIM.
If “GRD Config” shows “PIN Required”: the SIM card has the PIN activated
(security code), configure the PIN.
If “GRD Config” shows “Blocked card (PUK)”: the SIM card is blocked by
PUK.
If there is no indication of error.
Verify that the SIM card placed in the GRD has credit.
Verify that the SIM card has a subscription or account that allows to send SMS
messages.
Check that the phone number you are sending the message to, matches with the one
on the SIM Card of the GRD.
Be sure that the message sent is one of the supported ones by the GRD. If the
message begins with a word the GRD cannot interpret, it will not answer. The same
thing happens if the message begins with a space.
The GPRS connection cannot be established
Verify the status with “GRD Config” or send a SMS message requesting the connection
status (‘
state ’ command )
If the status shows “ERROR”. Verify that the configured Operator (GPRS
APN/user/password) corresponds to the one on the SIM Card. (You can verify this value
sending the SMS message
‘list’ ).
If the status shows “CONNECTING” for a long time, it simply means there are delays in
the network. Wait until the GRD establishes the connection.
The broker connection cannot be established .
The status shows “WAITING FOR GPRS CONNECTION”, the GPRSservice is not
available (or is not correctly configured). It won’t be able to establish a broker connection
until a GPRS connection is available..
The status shows
“DISABLED” (the Link LED is off): there is no configured connection
or the GRD is waiting for the next try.
The status shows
“Connecting…” (The Link LED blinks rapidly).
If the LED blinks rapidly during several seconds (a minute or more) verify:
That the equipment to which you are trying to connect is not behind a firewall
which is filtering the connection.
You might not have configured the broker's public IP address and/or forgot to
open the TCP port in you router.
That the quality of the GPRS service is acceptable. For example: attempt to
access a page with a web browser of any cell phone having the service
available and verify that it can be done without problems.
GRD-MQ User Manual Troubleshooting
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