GPRS Network Configuration Settings

Example GPRS Configuration Settings

The following examples show the AT commands needed to connect to the 4 most popular GPRS networks in the UK. Other networks will be configured very similar to the ones below.

Virgin: SMS 800 Texts

PAYG: GPRS CONFIGURATION:

at+cgdcont=1,"IP","goto.virginmobile.uk","0.0.0.0",0,0
at#userid="user"
at#passw=""
at#sktset=0,4000,"82.152.20.37"
at#sktop

Vodafone: subscription only service

Data10 tarrif: 10MB + £2/MB there after
PAY-as-you-go tarrif

at+cgdcont=1,"IP","pp.vodafone.co.uk","0.0.0.0",0,0
at#userid="web"
at#passw="web"
at#sktset=0,4000,"82.152.20.37"
at#sktop

T-Mobile: depending on t-zone add-on

Zone dependent service

at+cgdcont=1,"IP","general.t-mobile.uk","0.0.0.0",0,0
at#userid="user"
at#passw="wap"
at#sktset=0,4000,"82.152.20.37"
at#sktop

Orange:

Mobile office Pay-As-You-Go Service

Normal PAYG You may need to add access to data :

at+cgdcont=1,"IP","orangeinternet","0.0.0.0",0,0
at#userid=""
at#passw=""
at#sktset=0,4000,"82.152.20.37"

Configuring VibWire-108-GPRS for data transmission

The VibWire-108-GPRS requires 2 stages of configuration before information sent across the network and these are:

1) Assign instrument to activate the GPRS modem

2) Assign network details using terminal port

Setting Operation Mode

Before information can be sent across the GPRS network the modem has to be activated and this operation is undertaken from the keyboard.

To activate the real-time frequency display

1. Starting at

The “Basic” menu item is the first menu item available after the instrument is powered on.

2. Select “Menu In” button

3. Use the Up & Down Keys to select the option

GPRS

the other options available are:

“Analg SERAL C0d C1d C2d C3d C4d C5d C6d C7d” C0d = Channel 0 ........ C7d = Channel 7

Once the “GPRS” output is selected the “Menu Out” key has to be pressed to confirm this option.

Terminal Port & Hyper-terminal Connection

The GPRS network configuration is to complex to be undertaken using the keyboard by itself and so Keynes Controls use a terminal program to assign the AT commands to the modem.

The RS-232 port on the front of the instrument uses a standard 9 pin D connector modem cable to connect to a PC.

Factory settings are:

Baud rate = 115Kb Parity = Even 8 data bit - no stop bit

Terminal Program

Any terminal program can be used so long as the computer system being used can see the assigned serial port. Common Windows application is “Hyper Terminal” and this works correctly with the VibWire-108.