Sierra Wireless ULC R1902G GSM 850/1900 Data Modems User Manual Redwing GPRS User Guide
Sierra Wireless, Inc. GSM 850/1900 Data Modems Redwing GPRS User Guide
Contents
- 1. Exhibit 8 User manual 3210
- 2. Exhibit 8 User manual 3310
- 3. Exhibit 8 User manual 3110
Exhibit 8 User manual 3110









![Redwing GPRS Configuration Redwing GPRS User Guide Version 1.08 AirLink Communications, Inc. Page 6 September 29, 2003 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 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. If a SIM is installed, and the modem is in GSM/GPRS coverage, the status indicators will look like the following: where the status indicators have the following meanings: GSM indicates GSM coverage if +RSCI=0 indicates GPRS coverage if +RSCI=1 Tx indicates the radio is transmitting Radio The OEM module radio is on and ready to transmit and receive Pwr The power is on.](https://usermanual.wiki/Sierra-Wireless-ULC/R1902G.Exhibit-8-User-manual-3110/User-Guide-371359-Page-12.png)
![Redwing GPRS Configuration Redwing GPRS User Guide Version 1.08 AirLink Communications, Inc. Page 7 September 29, 2003 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. 3.2.1 SIM Check You can check if a SIM [Subscriber Identity Module] is in the Redwing with the AT+CIMI command. If a SIM is in the modem, you will see a response like the following: at+cimi 310380006255650 OK The number is the IMSI [International Mobile Subscriber Identity] which is unique to each SIM. If there is no SIM, there will be a blank response like the following: at+cimi OK 3.2.2 PDP Context Check if the PDP context is correct with the command: AT+CGDCONT? You should get a response like: at+cgdcont? +CGDCONT:1,"IP","proxy","",0,0 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. Most companies will be using a custom APN that allows them to communicate with all](https://usermanual.wiki/Sierra-Wireless-ULC/R1902G.Exhibit-8-User-manual-3110/User-Guide-371359-Page-13.png)



![Redwing AT Command Summary Redwing GPRS User Guide Version 1.08 AirLink Communications, Inc. Page 11 September 29, 2003 Command Description +CGDCONT=cid,PDP_type, APN [?] 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. PDP_type = Packet Data Protocol type = “IP” APN = Access Point Name a logical name that is used to select the GGSN or the external packet data network. Can only be what’s defined on the SIM AT+CGDCONT = 1,”IP”,”proxy” AT+CGDCONT = 1,”IP”,”public” +COPS? Returns the currently selected network operator. AT+COPS? AT&T Wireless OK +CREG network registration +GMI request manufacturer identification +GMM request TA model identification +GMR request TA revision identification +GSN request TA serial number identification – International Mobile Equipment Identification (IMEI) +ICCID? Returns the 20 digit SIM ID AT+ICCID? 89310380101024729959 OK +IPR set fixed local rate](https://usermanual.wiki/Sierra-Wireless-ULC/R1902G.Exhibit-8-User-manual-3110/User-Guide-371359-Page-17.png)






