EXCEL 50 INSTALLATION INSTRUCTIONS
EN1B-0101
32
12.
You may now enter the PIN number or let the Excel
CPU do this. If you want to enter the PIN number now,
enter the PIN with the command AT+CPIN=”xxxx”,
where xxxx represents the PIN number.
NOTE:
Regarding the PIN entry, the M20T shows the same
behavior as a regular cellular phone, as it uses the
same type of SIM card. This means, for example,
that after 3 false PIN inputs, the SIM card will lock
and need to be released via the “PUK” Personal
Unlocking Key (Master PIN).
Repeated input of the wrong “PUK” (more than 2
false inputs) will destroy the SIM card irrevocably.
13.
Once the M20 has accepted the PIN it will log into the
GSM net.
The terminal window will show “OK”.
The M20T LED will be on continuously.
14.
Disconnect the serial cable from the PC/laptop and
connect it to the Excel CPU.
15.
Verify that the M20T dials out on the telephone number
for data communication, otherwise its call will not be
recognized by the XBS. The M20T can be forced to do
so by adding the letter <i> to the telephone number,
e.g. <ATDi1234567891234>
NOTE:
As soon as the PIN is entered into the Excel con-
troller, the following mechanisms will take place
automatically:
—
Cyclical check (once per minute) for existence
of the PIN number in the M20 (AT+CPIN?)
—
Sending of PIN number to M20T, if it has lost it.
This guarantees that communication will re-
sume automatically after exchange of the SIM
card or after power to the M20T has been lost.
Deletion of the PIN number or resetting the controller
will stop the above mechanisms.
Verification of the PIN
You can verify the PIN without connecting a terminal program
by following these steps:
1.
Connect the XI582AH MMI.
2.
Enter PIN.
3.
Disconnect the XI582AH MMI.
4.
Connect the M20T.
5.
Reconnect the XI582AH MMI.
6.
View the “PIN” field.
7.
If it shows “0”, the PIN was wrong.
8.
If it shows “PIN”, the PIN was correct.
Additional information about the M20 terminal may be found
at the following website:
http://www.siemens.de/ic/products/cd/english/index/products/
cellular/m20t.html
