AirPrime and HL7548 AT Commands Interface Guide Rev10 0

Table Of Contents
4116303 Rev 10.0 August 10, 2017 213
AT Commands Interface Guide
Protocol Specific Commands
HL7518 and HL7548
<rem_data> remaining bytes in the socket buffer, waiting to be sent
<rcv_data> received bytes, can be read with +KTCPRCV command
Reference
Sierra Wireless
Proprietary
Notes
The socket buffer’s size for sending is 17520 bytes.
This command returns +CME ERROR: 910 (Bad Session ID) for undefined
<session_id>s.
11.10.11. +KTCPSTART Command: Start a TCP
Connection in Direct Data Flow
HL7518 and HL7548
Test command
Syntax
AT+KTCPSTART
=?
Response
OK
Read command
Syntax
AT+KTCPSTART
?
Response
OK
Write command
Syntax
AT+KTCPSTART
=<session_id>
Response
CONNECT
OK
+CME ERROR: an error occurs, syntax error
+KTCP_NOTIF: <session_id>,<tcp_notif> : an error occurs
Parameters
<session_id> TCP session index
<tcp_notif> See command AT+KTCPCNX
Reference
Sierra Wireless
Proprietary
Notes
This function is used to send and receive data bytes through a TCP socket.
It is highly recommended to configure the module for hardware flow control using
AT&K3 before using this command.
The behavior of DTR drop meets with AT&D.
+++ can be used to switch in command mode.
ATO<session_id> can be used to switch back in data mode.
Only 1 KTCPSTART session can be used.
Can be used in 07.10 multiplexer.
If the session is successfully connected by +KTCPCNX, this command does not
restart the connection and the module directly enters direct data flow.