Cinterion
®
EHS6 AT Command Set
4.2 AT&C
EHS6_ATC_V03.001 15/12/3
Confidential / Released
Page 103 of 513
4.2 AT&C Set Data Carrier Detect (DCD) Line Mode
The AT&C command controls the behavior of the ME's DCD line.
AT&C offers full functionality only if the DCD0 line is enabled with AT^SCFG="GPIO/mode/DCD0","std". Other-
wise AT&C will respond "+CME ERROR: operation not allowed".
Syntax
Parameter Description
[0] DCD line shall always be on.
1
(&F)
DCD line shall be on only when data carrier signal is present.
2 DCD line shall be on when one or more Internet services defined on the related
serial channel are in state "Connecting" or "Up" as described below. For details
on the various service states refer to AT^SISI, parameter <srvState> or
AT^SISO, parameter <srvState>.
• Transparent TCP or Transparent UDP client, SOCKET, HTTP, SMTP: DCD
shall be on when <srvState>="Connnecting" or "Up"
• Transparent TCP Listener: DCD shall be on when <srvState>="Con-
nected"
• FTP: DCD shall be on when data channel is connected, i.e.
<srvState>="Up"
Exec Command
AT&C[<value>]
Response(s)
OK
PIN Last Reference(s)
- + - V.250
<value>
(num)(&V)(&W)
To Next Page
Loading...
Need help?
General
