2 GR64 Wireless Modem

2.1 About the GR64

The Sony Ericsson Gx64 family of devices are Quad Band GSM/GPRS wireless modems operating in the GSM 850/900/1800/1900 bands.

These products belong to a new generation of Sony Ericsson wireless modems, and are intended to be used in machine-to-machine applications and man-to-machine applications. They are used when there is a need to send and receive data (by SMS, CSD, or GPRS), and make voice calls over the GSM network.

The GR64 conforms to the European Union (EU) Restriction of Hazardous Substances (RoHS) directive 2002/95/EC.

The GR64 is available in four variants. Table 1: GR64 Variants lists the hardware and software features for each variant. The device is available in two hardware variants. Each hardware variant is available in two software variants. The first hardware variant (/10 and /30) is equipped with PCM compatible pins but does not have a USB interface or an integrated SIM card holder. The second hardware variant (/20 and /40) is equipped with a USB interface and an integrated SIM card holder, but does not have PCM compatible pins.

Table 1: GR64 Variants

 

 

 

 

 

PCM

 

 

 

 

 

 

 

 

 

 

 

SIM Card

 

 

 

Embedded

 

 

Variant

 

 

 

Compatible

 

 

 

VREF Input

 

 

 

USB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Holder

 

 

 

Applications

 

 

 

 

 

 

PINS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DPY 102 1494/10

 

 

Yes

 

 

No

 

 

No

 

 

No

 

 

No

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DPY 102 1494/20

 

 

No

 

 

Yes

 

 

Yes

 

 

Yes

 

 

No

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DPY 102 1494/30

 

 

Yes

 

 

No

 

 

No

 

 

No

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DPY 102 1494/40

 

 

No

 

 

Yes

 

 

Yes

 

 

Yes

 

 

Yes

One software variant is designed to be controlled from a micro-controller situated on the host application. The other software variant offers the option to run applications embedded onto the module itself. When using the embedded application version the controlling script can be run internal to the module, with or without the use of an external control.

A typical application, involves a micro-controller and a wireless modem, in which the micro-controller sends AT commands to the wireless modem via an RS232 communications link.

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