XT55 AVL Software Instructions User’s Guide
Confidential/Preliminary s
mo b i l e
XT55_avl_ug_V01 Page 15 of 20 15.03.2004
3.1.1.2 Extended NMEA command description Please note that, all extended NMEA commands beginning with $PSRF111 are for internally
test only. Whereas all extended NMEA commands beginning with $PSRF112 are
implemented for configuration of history, alarm and remote tracking function. Please note
that all NMEA commands, which have to be sent to the module XT55, are accepted when
the End Sequence <CR><LF> is also included.
Commands Description
$PSRF112,
value,
*XX
Parameter description:
value: //commands overview
Defined value
0 //overview of all implemented history, alarm and
remote tracking commands
*XX //CheckSum has to be calculated.
Example 1
$PSRF112,0*39
Commands build in remote tracking function
$PSRF112,
value,
Flag,
phone_number
*XX
Parameter description:
value: //configure the remote tracking
Defined values
20 //enables remote tracking for authorized phone number
21 //enables remote tracking for any mobile phone
22 //disables remote tracking and empty the list of
authorized phone number(s)
23 //displays the authorized phone number for
remote access.
Flag: //enter the position of authorized telephone
numbers into the list (0..9 available). Overwrites
the existing phone number.
Phone_number: //enter the authorized phone number for remote
access (optional).
Please note: Once at least one number has been
entered into the list, only these numbers are authorized
to interact with the module XT55. All other accesses are
ignored.
*XX //CheckSum has to be calculated.
Example 1
$PSRF112,20,2,012345678*01
This command enters (overwrites) in the list a phone number that is authorized for
remote access to the module XT55.
Example 2
$PSRF112,21*0A
This command deletes all existing entries (phone numbers) in the list, so it is
possible to have remote access from any GSM modem or mobile phone.