coM.sat ISDN Basic
created: page: file:
16/01/09 89 coMsat ISDN Basic Manual V2.7.doc
Note Protection Mark according to DIN 34!
5 Questions and answers
Question: coM.sat ISDN Basic is being configured with the aid of a PC. But access to
the device is apparently not possible.
Answer: You have forgotten to login.
The wrong port (COMx) has been selected in the Interface card in the coMsat.exe
application.
Question: The coM.sat ISDN Basic is being configured with the aid of a PC but without a
TC system having being connected. All the LEDs suddenly start to flash and access to the
device is no longer possible.
Answer: In this operating mode, a
“reset“ is carried out at intervals of around 100s. You
have to login again after a
“reset“ and after the device has been started up again.
Question: The coM.sat ISDN Basic is supposed to be configured for NT mode, but it
won’t start after downloading the configuration data.
Answer: All three optional layers, Layer 1 - 3, have not been selected for NT mode.
Question: The coM.sat ISDN Basic is supposed to be configured for TE mode, but it
won’t start after downloading the configuration data.
Answer: All three optional layers, Layer 1 - 3, have not been selected for TE mode.
Question: The monitor card is selected during operation but nothing changes within the
card or it remains empty.
Answer: The trace memory in the device is only read out on request. To do this, select
Monitor in the menu bar and then select Load. The display in the card is deleted by
selecting Clear from the menu. Attention: The content of the memory is not continuously
transferred to the PC after the first request with Load! A new enquiry must be made for each
update.
Question: The SIM card PIN numbers have been entered via the coMsat.exe application
and entered in the coM.sat ISDN Basic. However, the device fails to book in. The green
LEDs, which indicate booking in by being continuously lit, continue to flash.
Answer 1: SIM cards must be used that can work with an operating voltage of 3V. All
new SIM cards are usually suitable. If older SIM cards are used, which are only designed for
5V operation, it is possible that the device cannot book into the network despite the correct
PIN number being entered. Ask your network provider what type of SIM cards they issue.
Answer 2: The antennas have not yet been connected.
Question: Are the antenna affected if they are set up too close?
Answer: Yes, if two antennas are used, they must be set up at least 1 m apart to keep
the effect they have on each other to a minimum.
Question: Why can’t a GSM caller dial in even though he should be able to?
Answer: There are TC systems that forward all calls without called party number to a
specific extension. In the normal configuration, the coM.sat ISDN Basic reports an incoming
call to the PBX without called party number to check, if it is able to handle a call. If the PBX
already starts alerting an extension on that message, the GSM user can not dial anymore.
Change the setting of the “Dialling Mode” on page “Incoming Calls” to “En-bloc”. Then no
message is sent to the PBX until the complete called party number is available.
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