OnCell G3100 Series Configuring Serial Port Operation Modes
Disconnection request from remote site
After the TCP connection has been shut down by the remote Ethernet modem or PC, the OnCell G3100 will send
the NO CARRIER signal via the serial port and then return to command mode.
AT Commands
The OnCell G3100 supports the following common AT commands as used with a typical modem:
No. AT command Description Remarks
1 ATA Answer manually
2 ATD <IP>:<Port> Dial up the IP address : Port No.
3 ATE ATE0=Echo OFF
ATE1=Echo ON (default)
4 ATH ATH0=On-hook (default)
ATH1=Off-hook
5 ATI, ATI0, ATI1, ATI2 Modem version reply “OK” only
6 ATL Speaker volume option reply “OK” only
7 ATM Speaker control option reply “OK” only
8 ATO On line command
9 ATP, ATT Set Pulse/Tone Dialing mode reply “OK” only
10 ATQ0, ATQ1 Quiet command (default=ATQ0)
11 ATSr=n Change the contents of S register See “S registers”
12 ATSr? Read the contents of S register See “S registers”
13 ATV Result code type
ATV0 for digit code,
ATV1 for text code (default)
0=OK
1=connect
2=ring
3=No carrier
4=error
14 ATZ Reset (disconnect, enter command mode and
restore the flash settings)
15 AT&C Serial port DCD control
AT&C0=DCD always on
AT&C1=DTE detects connection by DCD on/off
(default)
16 AT&F Restore manufacturer’s settings
17 AT&G Select guard time reply “OK” only
18 AT&R Serial port RTS option command reply “OK” only
19 AT&S Serial port DSR control reply “OK” only
20 AT&V View settings
21 AT&W Write current settings to flash for next boot up
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