Rainbow Electronics FARGO MAESTRO 100 (with TCP_IP) - Manual (Page 170)

Security Commands
Enter PIN +CPIN
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WM_DEV_OAT_UGD_049 - 001 VOLUME 1 August 23, 2007
9 Security Commands
9.1 Enter PIN +CPIN
9.1.1 Description
This command is used to enter the ME passwords (PIN 1/CHV 1, PIN 2/CHV 2, PUK1,
PUK2, etc.), that are required before any ME functionality can be used.
PIN 1/CHV 1 and PIN 2/CHV 2 are between 4 and 8 digits long, PUK1 and PUK2 are
only 8 digits long.
After three unsuccessful attempts to enter the PIN, the PUK will be required. PUK
validation forces the user to enter a new PIN code as a second parameter and this will
be the new PIN code if PUK validation succeeds. PIN 1/CHV 1 is then enabled if PUK1
is correct.
The application is responsible for checking the PIN after each reset or power on if the
PIN was enabled.
9.1.2 Syntax
Action command
AT+CPIN=<pin>[,<NewPin>]
OK
Read command
AT+CPIN?
+CPIN: <code>
Note: No OK
Test command
None