Instruction manual

LS300G GSM/GPRS/EDGE/HSPA+ Sierra Wireless Cellular Modem

5. Overview

The LS300G modem may be configured in one of two ways, depending on the

communications type and needs of the user. For many applications that just

need a connection for data collection and datalogger maintenance or

monitoring, setup as a serial server is sufficient. In this mode, the modem

receives IP communications over the cellular network and converts those to

serial (RS-232) communications to pass on to the datalogger. From the

datalogger’s perspective, this is no different than a serial cable connecting it to

a PC. Section 4, Quickstart

(p. 2), describes setting up the LS300G in serial

server mode.

Alternatively, if IP communications are needed on the datalogger, the modem

may be set up in Point-to-Point Protocol (PPP) mode. In this mode, the modem

simply passes IP communications directly to the datalogger. This enables

features such as FTP, HTTP, and emailing. For information on configuring the

LS300G in PPP mode, see Section 7.5, AceManager and Template Files

(p. 16),

and Section 7.6, Enabling PPP Mode

(p. 19). See Appendix B, EmailSend Using

the Gmail Outgoing SMTP Server

(p. B-1), for more information on emailing.

6. Specifications

6.1 LS300G Specifications

Sierra Wireless AirLink® LS300 cellular modem (SL8090 radio module)

• Carrier Approval: AT&T®, Rodgers, Bell, and Telus

• Network: 3G HSPA+ with fallback to GSM/GPRS/EDGE

Host Interfaces

• 10/100 Base-T RJ45 Ethernet

• RS-232 serial port, DB9 female

• USB version 2.0 with micro-B connector