GSM20-ANT RF Solutions, GSM20-ANT Datasheet - Page 14

• Manufacturer Part Number: GSM20-ANT
• Description: ANTENNA, MAESTRO 20
• Manufacturer: RF Solutions

Specifications of GSM20-ANT

• Svhc: No SVHC (15-Dec-2010)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DS100-1 May ’07
13
5.1 Factory settings
The modem has the following factory settings. Please refer to the AT command document for the meaning
of each setting.
AT+IPR
AT+IFC
AT+ICF
ATE
AT&C
AT&D
ATQ
ATV
AT&S
ATS0
AT+CLIP
AT+CRLP
AT+CSCS
AT+CMGF
AT+CSMP
AT+CNMI
*Note: settings stored in SIM, not in modem
5.2 Input / Output port
This port can be configured as either an input one or an output one.
To configure it as an input port, first issue AT+WIOW=2, 0 to disable the output port. Use AT+WIOR=3 to
read the status of this input port. Response +WIOR: 0 represent Logic HIGH (>3V); Response +WIOR: 1
represent Logic LOW (<0.5V) To use it as an output port, issue AT+WIOW=2,1 will turn it on and it will
drain current to ground. The current is recommended not to exceed 5 mA. Issue AT+WIOW=2,0 will turn it
off.
5.3 RS232 AUTO-ONLINE mode (power saving)
When being in the AUTO-ONLINE, the RS232 transceiver will shutdown most of its hardware to save
power if it does not detect a valid input for more than 100uS. The RS232 transceiver will wake up when
valid input is detected again.
By default, the RS232 transceiver is put in AUTO-ONLINE. This mode can be turned off by issuing
AT+WIOM=,16.
Related AT commands
GSM & GPRS Modem
www.rfsolutions.co.uk
115200 (9600 for Eco)
2,2
3,4
1
1
2
0
1
1
0
0
0
“PCCP437”
1
1,67,0,0
0,1,0,0
Factory Settings
©2007 REG No 277 4001, ENGLAND.
DTE-DCE data rate
DTE-DCE flow control
DTE-DCE character framing
ECHO
DCD signal
DTR signal
Result code suppression
Response format
DSR signal
Auto answer
Calling line ID presentation
Calling line ID restriction
Character set
Short Message format
Text mode parameters *
New message indication *
Description
CHAPTER 5
APPENDIX
Page 13