Description Of Individual Components Of The Router; Gsm/Gprs/Edge Module; Control Microcomputer - Advantech ER75s User Manual

Edge router

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5.5 Description of individual components of the router

Cinterion module is used for GSM network wireless communication. It is integrated into

the printed circuit board. The slide-out SIM card reader is accessible from the front panel. The

FME antenna connector is accessible from the rear panel.

GSM/GPRS/EDGE module is equipped with a USB 2.0 Full Speed interface which is

brought to the USB-B connector marked USB. The module is connected to the control mi-

crocomputer via the high-speed serial interface RS232.

GSM/GPRS/EDGE module

Communicates in four GSM bands (850 MHz, 900 MHz, 1800 MHz a 1900 MHz).

In the GPRS mode it is able to transmit in three "Time Slots" and receive in two (GPRS

multi-slot class 10 – the maximum bit rate of reception is 42.8 kb/s) or transmit in one

"Time Slot" and receive in four (GPRS multi-slot class 12 – the maximum bit rate of

reception is 85.6 kb/s).

In the EDGE mode it is able to transmit in three "Time Slots" and receive in two (EDGE

multi-slot class 10 – the maximum bit rate of reception is 118.4 kb/s) or transmit in one

"Time Slot" and receive in four (GPRS multi-slot class 12 – the maximum bit rate of

reception is 236.8 kb/s).

Supports coding schemes CS1 to CS4 and MCS1 to MCS9.

Attention! The transmitting and receiving in timeslots depends on the operator networks

possibilities.

The core of the ER75s router is a 32-bit microprocessor with 16 MB RAM, 4 MB FLASH

EEPROM, serial interface RS232 and an Ethernet interface 10/100 Mbit/s. The microcomputer

is connected to the MC75i OEM module through the serial interface and controls the commu-

nication via GSM/GPRS. Towards to the user it is connected on the Ethernet interface.

The software is built on the uClinux operating system.

The router supports services such as DHCP, NAT, GRE, IPSec tunnels, etc.

The router settings are saved in the FLASH EEPROM memory. All conﬁguration of the

modem can be done through a web interface (HTTP) which is security password con-

trolled.

ER75s

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