Redwing GPRS User Guide Models G3110, G3111 Version 2.01 AirLink Communications, Inc.
Information in this document is subject to change without notice © Copyright AirLink Communications, Inc, 1993-2004. All rights reserved. Please send comments to: email: pubs@AirLink.com Fax: Phone: 510-264-5422 510-264-5400 Post: AirLink Communications, Inc. Attention: Technical Publications Dept.
Important Notice Because of the nature of wireless communications, transmission and reception of data can never be guaranteed. Data may be delayed, corrupted (i.e., have errors) or be totally lost.
Redwing GPRS User Guide Table of Contents 1. Introduction ..................................................................................... 1 1.1 2. Redwing Product Overview ........................................................................... 2 Redwing Network Connection ..................................................... 3 2.1 3. Internet (TCP/IP) Connections via GPRS .................................................... 3 Redwing GPRS Configuration ......................................
Redwing GPRS User Guide WARNING The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be colocated or operating in conjunction with any other antenna or transmitter. 1. Introduction The GSM/GPRS wireless network combines the world’s leading wireless standard— the Global System for Mobile Communications (GSM)—with fast, packet-switched access to data networks such as the Internet.
Redwing Product Overview Redwing GPRS User Guide Version 2.01 1.1 Redwing Product Overview The AirLink Redwing GPRS is a rugged, full duplex GPRS modem that provides wireless transport capabilities for fixed and mobile applications. GPRS is an efficient and secure wireless technology that works well for fixed or mobile applications. The Redwing's rugged form factor is ideal for industrial and commercial applications that require real-time communications.
Redwing Network Connection Redwing GPRS User Guide Version 2.01 2. Redwing Network Connection The AirLink Redwing GPRS modems are capable of providing network connections for GPRS and SMS data. 2.1 Internet (TCP/IP) Connections via GPRS When using the Redwing GPRS, remote access to is done via a PPP (TCP/IP) connection to the GPRS network. The GPRS carrier actually provides Internet connectivity, and, therefore, it becomes the ISP for that session.
Redwing GPRS Configuration Redwing GPRS User Guide Version 2.01 3. Redwing GPRS Configuration Configuration of the Redwing GPRS modem is done using a terminal emulation program like HyperTerminal in Windows. 3.1 Configuration Procedure 1. Attach the antennas, DB-9 cable and power to the back of the modem. 2. Power on the modem, and ensure the Pwr light is lit. 3. Attach the modem to the back of the PC with the provided DB-9 cable.
Redwing GPRS Configuration Redwing GPRS User Guide Version 2.01 6. For "Connect using" select the COM port that the modem is on (do not select a modem driver), then select OK. 7. Select 115200 for the "Bits per second." Ensure Data Bits: 8, Parity: None, Stop bits: 1 and Flow control: Hardware. Then select OK. (These are the factory default settings for a GPRS modem. If you get garbled characters when typing AT commands, change these settings and reconnect to the modem.
Redwing GPRS Configuration Redwing GPRS User Guide Version 2.01 8. Type AT followed by [Enter]. You should receive an "OK" in response. Other AT commands may now be issued to the modem. See Section Using AT Commands for a list of AT commands 3.2 Modem Activation [C3110] The Redwing GPRS modem requires a SIM [Subscriber Identity Module] for the modem’s account activation. Units will usually be shipped with a SIM installed and be ready to operate.
Redwing GPRS Configuration Redwing GPRS User Guide Version 2.01 If there is no SIM installed or there is no GSM/GPRS coverage, the GSM indicator will be off. Indicating no GSM/GPRS coverage or no SIM installed Connect up to configure the modem as in the Local Configuration Section . If you are unfamiliar with using AT commands, please review the Using AT Commands Section first. 3.
Redwing GPRS Configuration Redwing GPRS User Guide Version 2.01 OK If you get a blank response, you need to set the PDP context. You need the APN [Access Point Name] which you can obtain from the carrier rep or from whomever you received the account. Some companies may be using a custom APN that allows them to communicate with only the IPs in their APN. To set the PDP context: at+cgdcont=1,”IP”,”apn_obtained_from_carrier” at&w The modem will use this setting to attach to the GPRS network.
Using AT Commands Redwing GPRS User Guide Version 2.01 4. Using AT Commands Use a terminal emulation program to connect up to the modem either locally (via the serial port of a computer) or remotely (over an existing internet connection on a PC to the modem at a remote location). Sample AT Commands Here is an example of entering AT commands, changing some settings, saving and resetting the modem. (Note that any command you are unsure of is explained in The AT Commands section.
Redwing AT Command Summary Redwing GPRS User Guide Version 2.01 4.1 Redwing GPRS Specific AT Commands These AT commands are specific to the Redwing GPRS devices and GPRS networks.
Redwing AT Command Summary Command +CGDCONT=cid,PDP_type, APN [?] Redwing GPRS User Guide Version 2.01 Description Define the PDP context. Must be defined before a connection can be made to the GRPS network. Needs to be configured only once, the parameters are saved and used each time a connection is made to the GPRS network. cid = PDP Context Identifier: numeric parameter that specifies a PDP context definition.
Redwing AT Command Summary Command Redwing GPRS User Guide Version 2.01 Description +RCIQ? Returns the current cell information.
Redwing AT Command Summary Redwing GPRS User Guide Version 2.01 4.2 Redwing AT Command Summary Following is a summary of all the AT commands for the Redwing GPRS. For more information on these commands, see AT Command Reference Guide for the RIM OEM Radio Modem 1902G and 1802G.
Redwing AT Command Summary Command Redwing GPRS User Guide Version 2.01 Description ATZ set all current parameters to a user-defined profile AT&C set circuit Data Carrier Detect (DCD) function mode AT&D set circuit Data Terminal Ready (DTR) function mode AT&F set all current parameters to manufacturer defaults AT&V display current configuration AT&W store current parameter to user-defined profile AT+DR V.42bis data compression reporting control AT+DS V.
Redwing AT Command Summary Command Redwing GPRS User Guide Version 2.
Redwing AT Command Summary Command Redwing GPRS User Guide Version 2.01 Description AT+CPMS preferred SMS Message Storage AT+CRES restore SMS settings AT+CSAS save SMS settings AT+CSCA SMS Service Center Address AT+CSCB select cell broadcast SMS messages AT+CSDH show SMS text mode parameters AT+CSMP set SMS text mode parameters AT+CSMS select Message Service 4.
Redwing GPRS Technical Specifications Redwing GPRS User Guide Version 2.01 5. Redwing GPRS Technical Specifications 5.1 Physical Characteristics Weight: < 1 lb. Size: 3.3” wide x 2” high x 6.8" long RF Antenna Connector: 50 Ohm TNC Serial Interface: RS232 DB-9F Rugged aluminum case 5.2 Power Specifications Input Voltage: 10 VDC to 28 VDC Idle Input Current: 20 mA at 12V Typical Transmit/Receive: 80ma at 12VDC Max Input Current 150 ma at 12 VDC 5.
Redwing GPRS Technical Specifications Redwing GPRS User Guide Version 2.01 5.4 RF Features Models G3110 Network: 1900/850 MHz GSM/GPRS Transmit frequency: 1850-1910 MHz and 824-849 MHz Receiver frequency: 1930-1990 MHz and 869-894 MHz Transmit power range at antenna port: 1.0 W for 1900 MHz and 0.8W for 850 MHz Multislot Class 8 Models G3111 Network: 1900/850 MHz GSM/GPRS Transmit frequency: 1850-1910 MHz and 824-849 MHz Receiver frequency: 1930-1990 MHz and 869-894 MHz Maximum Transmit Power: 1.
