Westermo GDW-11 - Manual (Page 358)

358 Technical appendixes 6615-2220
Example: AT command and its answer
Standard AT command:
Command example Possible responses Note
AT\r\n When there is no encap-
sulation the AT command
transmitted on the serial
link is like this (in ASCII and
hexadecimal):
(0x41 0x54 0x0D 0x0A)
\r\nOK\r\n and the answer is like this:
(0x0D 0x0A 0x4F 0x4B
0x0D 0x0A)
Command with the protocol:
Command example Possible responses Note
0xAA 0x04 0xE8 0x41 With the encapsulation in
0x54 0x0D 0x0A 0x42 the serial link, the packet
transmitted is (in hexadeci-
mal):
0xAA 0x06 0xE8 0x0D 0x0A and the answer is like this:
0x4F 0x4B 0x0D 0x0A 0x60
Example: Initialization and Data packet
When the Multiplexing Mode is activated (+WMUX=1), the product sends 2 Data pack-
ets after the establishment of a DATA call (after the CONNECT xxxx message):
1 READY Packet and 1 STATUS Packet. To set the different signals to the right value, it is
necessary to send a STATUS packet to the product.
Command example Possible responses Note
0xDD 0x01 0x08 0x40 0x26 bit RTS is on
0xDD 0x01 0x08 0xC0 0xA6 to start a data call, all the
bits should be on:
bits DTR and RTS are on
NOTE:
The autobauding mode is not available when the Multiplexing Mode is activated: the serial
link speed must be set to a fixed rate.
Support of SIM ToolKit by the ME
This has been extracted from the GSM 11.14.