Specifications

Telit GM862-PCS/-GPRS/-GSM Product Description

1vv0300604, Rev. ISSUE#14 - 22/01/04

2.11 User Interface

The user interface is managed by AT commands specified on the GSM 07.07 and 07.05

specification and listed in the chapter 6, AT Command.

2.11.1 Speech Coding

The Telit GM862-PCS, Telit GM862-GPRS and Telit GM862-GSM modules vocoder supports the

following rates:

• Half Rate.

• Full rate,

• Enhanced Full Rate

2.11.2 Sim Reader

The Telit GM862-PCS/-GPRS/-GSM modules support phase 2 GSM11.14 - SIM 3 volts ONLY. For

5V SIM operation an external level translator can be added.

Furthermore the Telit GM862-GPRS/-GSM module have an internal built-in SIM card reader, so

there's no need for an external SIM housing.

The Telit GM862-PCS has an enhanced internal built-in SIM card reader that allows also hot removal

of the SIM sensing, therefore the SIM can be extracted and reinserted while the module is still on,

so there's no need for an external SIM housing.

NOTE: On the Telit GM862-PCS the hot removal of the SIM sensing is not supported during power

saving mode (+CFUN: 5).

2.11.3 SMS

The Telit GM862-GPRS module supports the following SMS types:

Mobile Terminated (MT) class 0 – 2 with signalling of new incoming SMS, SIM full, SMS read

Mobile Originated class 0 – 3 with writing, memorise in SIM and sending

Cell Broadcast compatible with CB DRX with signalling of new incoming SMS.

2.11.4 Real Time Clock and Alarm

The Telit GM862-GPRS module supports the Real Time Clock and Alarm functions through AT

commands, furthermore an alarm output pin (GPIO6) can be configured to indicate the alarm with a

hardware line output.

2.11.5 Data/fax transmission

The Telit GM862-GPRS module supports:

• Packed Data transfer GPRS Class B, Multislot Class 8. (only for the Telit GM862-GPRS module)