10 Application Notes
User Manual 319/374
10.1.6 GSM
GSM settings:
The GSM settings are located in:
/etc/rc.d/rc.conf
# GSM Settings
export GSM_BAUDRATE="460800"
export GSM_PIN="1234"
export GSM_SCA="0012063140005"
export GSM_APN="epc.tmobile.com"
GSM Manual control:
The GSM service of the TC1 built in GSM/GPRS Modem can be manually controlled via the following scripts:
ppp-start
ppp-stop
These scripts reside in:
/etc/ppp/
10.1.6.1 GSM SIM Card
How to insert the SIM card:
1. Disconnect your TC1.
2. Pull out the rubber casket from the SIM card slot.
3. Do not use any sharp instruments that can damage the green yellow button. Use a pointed pin like a pen to
push the green-yellow button next to the tray to unlock the SIM card tray.
4. Take out the SIM card tray and insert your SIM card.
5. Inserting the SIM card tray with the inserted SIM card into the slot. Make sure to insert the SIM card tray
running rails.
6. Insert the rubber gasket. Make sure the rubber gasket fits properly.
To be able to use the TC1 in a cellphone network, a SIM card is necessary.
Recommended is a SIM card with unlimited data plan.
Use a SIM card from a cellphone network provider of your choice, for example T-Mobile or AT&T.