Redwing GPRS. User Guide

Transcription

1 Redwing GPRS User Guide AirLink Communications, Inc. version 2.20 February 2006

2 Information in this document is subject to change without notice Copyright AirLink Communications, Inc., All rights reserved. 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 co-located or operating in conjunction with any other antenna or transmitter. 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. Although significant delays or losses of data are rare when wireless devices such as the AirLink Communications modem are used in a normal manner with a well-constructed network, the AirLink modem should not be used in situations where failure to transmit or receive data could result in damage of any kind to the user or any other party, including but not limited to personal injury, death, or loss of property. AirLink Communications, Inc., accepts no responsibility for damages of any kind resulting from delays or errors in data transmitted or received using the AirLink Communications modem, or for failure of the AirLink Communications modem to transmit or receive such data. Safety and Hazards Do not operate the AirLink Communications modem in areas where blasting is in progress, where explosive atmospheres may be present, near medical equipment, near life support equipment, or any equipment which may be susceptible to any form of radio interference. In such areas, the Air- Link Communications modem MUST BE POWERED OFF. The AirLink Communications modem can transmit signals that could interfere with this equipment. Do not operate the AirLink Communications modem in any aircraft, whether the aircraft is on the ground or in flight. In aircraft, the AirLink Communications modem MUST BE POWERED OFF. When operating, the AirLink Communications modem can transmit signals that could interfere with various on board systems. The driver or operator of any vehicle should not operate the AirLink Communications modem while in control of a vehicle. Doing so will detract from the driver or operator's control and operation of that vehicle. In some states and provinces, operating such communications devices while in control of a vehicle is an offence. Limitation of Liability The information in this manual is subject to change without notice and does not represent a commitment on the part of AirLink Communications, Inc. AIRLINK COMMUNICATIONS, INC. SPECIFICALLY DISCLAIMS LIABILITY FOR ANY AND ALL DIRECT, INDIRECT, SPE- CIAL, GENERAL, INCIDENTAL, CONSEQUENTIAL, PUNITIVE OR EXEMPLARY DAM- AGES INCLUDING, BUT NOT LIMITED TO, LOSS OF PROFITS OR REVENUE OR ANTICIPATED PROFITS OR REVENUE ARISING OUT OF THE USE OR INABILITY TO USE ANY AIRLINK COMMUNICATIONS, INC. PRODUCT, EVEN IF AIRLINK COMMU- NICATIONS, INC. HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES OR THEY ARE FORESEEABLE OR FOR CLAIMS BY ANY THIRD PARTY. ii Redwing GPRS User Guide version 2.20

3 Contents CHAPTER 1 Introduction to Redwing GPRS 1 GPRS Overview 1 Establishing a Internet Connection 2 Using GPRS to Communicate with Your Equipment 3 Common Uses for the Redwing 4 CHAPTER 2 Subscriber Identity Module (SIM) 5 Installing the SIM 5 Opening the Case 5 Ejecting the SIM tray 6 Inserting the SIM 7 CHAPTER 3 Activation of the Redwing GPRS 8 Connecting the Redwing to your computer 8 Configuring the Redwing using AT Commands 8 Redwing GPRS User Guide version 2.20 iii

4 Contents Redwing Indicator Lights 9 CHAPTER 4 Circuit- Switched 10 INIT State 10 Configuring Auto INIT 11 AT Commands and command string 11 Commands Specific to the Redwing C Redwing C Conmmands specific to the Redwing C Redwing C Command Examples 13 Common AT Commands 13 Examples for model Redwing C Examples for model Redwing C CHAPTER 5 Hardware Installation 16 Redwing Mounting Kit 16 Connecting the Antenna 18 Connecting power 18 Connecting the Redwing to a computer or other device 19 CHAPTER 6 AT Commands 20 Direct Serial Connection 20 AT Commands 22 Information and Status 23 Activation (Provisioning) 24 Cellular Network (Your Wireless Service Provider s GPRS) 25 Local Network 26 Direct Communication 30 SMS (messaging) 30 CHAPTER 7 Specifications for the Redwing GPRS 32 Physical Characteristics: 32 iv Redwing GPRS User Guide version 2.20

5 Contents Data Services & RF Features: 32 Environmental: 33 Power Management: 33 Short Message Service (SMS): Send and Receive 33 Support web site 34 Contacting Technical Support 34 Redwing GPRS User Guide version 2.20 v

6 CHAPTER 1 Introduction to Redwing GPRS The Redwing's rugged form factor is ideal for industrial and commercial applications that require real-time communications. The Redwing provides cellular data communications for a variety of applications, such as telemetry, public safety, SCADA, traffic control, traffic metering, transit arrival systems and more. FIGURE 1. Redwing front and back GPRS Overview General Packet Radio Service (GPRS) is packet-switched with many users sharing the same transmission channel, only transmitting when they have data to send. This Redwing GPRS User Guide version

7 Introduction to Redwing GPRS means that the total available bandwidth can be immediately dedicated to those users who are actually sending at any given moment, providing higher utilization where users only send or receive data intermittently. GPRS provides speeds of kbps with bursts possibly up to 170 kbps. Establishing a Internet Connection The Internet Service Provider (ISP) from you to the Internet is Your Wireless Service Provider with your Redwing as the connection to Your Wireless Service Provider. When your Redwing is powered on, it automatically searches for cellular service using GPRS and establishes a PPP (Point to Point Protocol or dial up connection) link to Your Wireless Service Provider s network. As soon as the Redwing receives its IP, it s ready to create a network between your computer or device and Your Wireless Service Provider s network so you can use Your Wireless Service Provider to communicate on the Internet. To use your Redwing to connect to the Internet from your computer, you need to connect the computer directly to the Redwing s serial port and use Dial-Up Networking (DUN). FIGURE 2. Using the Redwing to connect to the Internet Redwing GPRS User Guide version

8 Introduction to Redwing GPRS Note: Private network connections are unique for each configuration and not covered as part of the standard installation. Using GPRS to Communicate with Your Equipment There are two types of addresses in TCP/IP, dynamic and static. Dynamic addresses are assigned on a need to have basis. Your Redwing might not always receive the same address each time it connects with Your Wireless Service Provider. Static addresses are permanently assigned to a particular account and will always be used whenever your Redwing connects to the Internet. The IP address will not be given to anyone else. If you need to contact the Redwing, a device connected to the modem, or a host system using the modem, you need to have a known IP (such as one which is static) or domain name (an IP address which is converted by a DNS server into a word based name). Most ISPs (cellular included) use dynamic IP addresses rather than static IP addresses. A dynamic IP address is suitable for many common Internet uses, such as web browsing, looking up data on another computer system, or other client function (such as data only being sent out or only being received after an initial request). Note: If you have a dynamic IP address for your Redwing, you will not be able to contact the modem using a name. Caution: The IP address given to your Redwing by Your Wireless Service Provider must also be Internet routable if the computer you need to connect to the Redwing is not connected directly to Your Wireless Service Provider's IP network. Please check with Your Wireless Service Provider to confirm you IP is scheme is correct for your application and needs. 3 Redwing GPRS User Guide version 2.20

9 Introduction to Redwing GPRS Common Uses for the Redwing The Redwing s rugged construction and cellular connection make it ideal for use in remote and/or industrial locations. The Redwing is designed to work with legacy devices which do not need the advanced features of ALEOS. Redwing GPRS User Guide version

10 CHAPTER 2 Subscriber Identity Module (SIM) The Subscriber Identity Module (SIM) in the Redwing is a smartcard securely storing the key identifying a mobile subscriber. Generally, you will only need to install the SIM once in the life of the modem and it may be pre-installed by AirLink. Installing the SIM To install the SIM, you will only need a small phillips head screw driver. Opening the Case 1. Unplug the modem power and all cables. 2. Using a small phillips head screw driver, remove the two screws on the back of the modem. Redwing GPRS User Guide version

11 Subscriber Identity Module (SIM) FIGURE 1. Modem back 3. Slide the casing off of the modem and set it aside. FIGURE 2. Modem partially slid from case Ejecting the SIM tray 4. Using the tip of a PDA stylus, an unbent paperclip, or other slim blunt item press the yellow button on the bottom of the modem. FIGURE 3. Tray button Redwing GPRS User Guide version

12 Subscriber Identity Module (SIM) 5. Slide the tray out of the slot. FIGURE 4. Empty SIM Tray Inserting the SIM 6. Place the SIM into the tray and gently press to click it into place. FIGURE 5. SIM Tray with a SIM 7. Slide the tray back into the modem and gently press to click it into place. Note: The card is up-side down. The top of the card faces the the bottom of the modem. FIGURE 6. Inserting the SIM 8. Slide the modem back into the case. 9. Secure the back of the modem with the screws. 7 Redwing GPRS User Guide version 2.20

13 CHAPTER 3 Activation of the Redwing GPRS Your Redwing GPRS is activated by the SIM card you installed. Contact your data sales representative for Your Wireless Service Provider to activate your Redwing. You will need to have the SIM ID (printed on the top of the Redwing). Connecting the Redwing to your computer Your Redwing s serial port can be connected directly to most computers or devices using a standard straight through serial cable. Configuring the Redwing using AT Commands The method to configure and activate your Redwing is by AT commands (full listing beginning on page 20) sent directly to the modem via a terminal application. Redwing GPRS User Guide version

14 Activation of the Redwing GPRS Redwing Indicator Lights When your Redwing is connected to power and an antenna, there is a specific pattern to the lights to indicate its operation mode. FIGURE 1. Redwing indicator lights Redwing Net - Indicates when there is traffic on the network. Pwr - Indicates the power adapter is connected and there is power getting to the modem. The Reset button performs the same function as unplugging power from the modem and plugging it back in. Reset will not alter any saved configuration settings. 9 Redwing GPRS User Guide version 2.20

15 CHAPTER 4 Circuit- Switched The Redwing does not have any internal intelligence nor does the Redwing C3110 have the ability to SAVE individual settings like a conventional modem. Therefore, the best machines for use in circuit-switched mode are ones that can provide their own INIT or setup strings and/or issue AT commands. However, for customers who have unintelligent machines who still need to have the modem 'ready' to behave in a certain way (such as Auto-Answering circuitswitched data calls), there is a feature in the modem called the INIT STATE. Note: The circuit-switched configuration requires a voice plan (account) with your carrier, not a 1xRTT data plan. 1xRTT features are not compatible with the circuit switch configuration. It is generally not easy to switch from one plan to the other. Voice plan speeds are generally lower than those of a data plan. INIT State The INIT STATE is a state where the modem will initialize itself by using a single pre-determined concatenated Auto-INIT command string. In some models of the Redwing, the Auto-INIT is actually an AT command itself, called +ATINIT. Since the Auto-INIT takes the shape of traditional INIT strings, those with experience setting up conventional land-line modems should find this fairly easy to configure. Redwing GPRS User Guide version

16 Circuit- Switched The Auto-INIT command string is comprised of up to 40 characters, the order defining the sequence of the initialization. The command sets the modem for the desired 'ready' configuration each time it powers on. Configuring Auto INIT To configure the modem for circuit-switch communication, you will need to use AT commands. For the Redwing, you will need to use direct serial communication (page 20) to enter the commands. La configuration du modem pour les communications par commutation de circuits exige l'utilisation de commandes AT. Vous devez utiliser une connexion série directe pour entrer les commandes dans le modèle Redwing. Different models of the Redwing respond to some of the AT commands in different ways, a command which is used with one model may not be applicable to another. The model number of your modem is on the label on the top of the case, ex. Redwing CDMA C3110. AT Commands and command string Each modem requires a command string that is a combination of AT commands (page 20) limited to a maximum of 40 characters. The command string will vary depending on the needs of the connected device (for example, some devices need DTR to be high while others need DTR to be ignored). Commands Specific to the Redwing C3110 There are two primary commands for setting a modem Auto-INIT. Both commands must be entered in this order for the modem to initialize. AT+ATINITSTATE=1 AT+ATINIT=string,C[,break][,comma] 11 Redwing GPRS User Guide version 2.20

17 Circuit- Switched The command string cannot contain any spaces, commas, the plus (+) symbol, or a semicolon (;). If an AT command needed for the string contains a plus or comma (for example, +IFC=0,0), you will need to designate a break character since you cannot use the standard break of ; for the plus to be read and a replacement for the comma. The break and comma designations need to be at the end of the ATINIT command and separated with commas. During the INIT sequence, the modem looks at the entire command before executing the AT command string. If there are replacement values, it will perform the appropriate replacement before executing the AT command. Example: AT+ATINIT=&C1S0=1$QCVAD=4%+IFC=0^0,C,%,^ The % will allow the + to be used and the ^ will translate to a,. The AT command executed would be: Example of executed command: AT&C1S0=1$QCVAD=4+IFC=0,0 TABLE 1. Redwing C3110 The Auto-INIT Command for the Redwing C3110: AT+ATINIT=&D0S0=1$QCVAD=4,C,%,^ Components: AT All AT commands must start with AT. +ATINIT= Sets the initialization string in the modem. string The string is a combination of AT Commands (page 20) limited to a maximum of 40 characters. Examples below.,c Stores the command to NVRAM. [,break] Optional BREAK character to allow the use of a command with a +. In the example, a % is used. [,comma] Optional comma replacement character to allow the use of a command requiring a comma. In the example, a ^ is used. Redwing GPRS User Guide version

18 Circuit- Switched Conmmands specific to the Redwing C3111 The Redwing C3111 does not use +ATINITSTATE or +ATINT. To configure the Redwing C3111, AT commands can be concatenated to create a string with ;AT&W as the last commands to write them into memory. Some commands, such as +IFC, will need to be prefixed with ;AT. TABLE 2. Redwing C3111 The Auto-INIT Command for the Redwing C3111: ATS0=1+CICB=0;AT&W Components: AT All AT commands must start with AT. string The string is a combination of AT Commands (page 20). Examples below. ;AT&W Stores the command to memory. Command Examples For a full listing of AT commands, their available parameters, and defaults, refer to the AT Commands chapter, page 20. Common AT Commands E Echo Q Quiet Mode &C DCD Control &D DTR Options &S DSR Options S0 Auto-answer mode S7 Wait for Carrier S8 Comma Pause Time 13 Redwing GPRS User Guide version 2.20

19 Circuit- Switched S9 Carrier Detect Response Time +IFC=x,x Enable or Disable Flow control - RTS/CTS (for C3110, you will need to use a comma replacement command) $QCVAD Answer as a Data Call for C3110 +CICB Answer as a Data Call for C3111 Note: These are examples only. Other command strings can be constructed to address other needs. Caution: The command string in the examples below is in bold. TABLE 3. Examples for model Redwing C3110 Example Auto INIT Command You want to have the modem auto-answer incoming data calls, regardless of whether DTR is being asserted by the device. AT+ATINIT=&D0S0=1$QCVAD=4,C You want to have the modem auto-answer incoming data calls, DTR is asserted by a device connected to the modem. AT+ATINIT=&D2S0=1$QCVAD=4,C AT Command string &D0 S0=1 $QCVAD=4 &D2 S0=1 $QCVAD=4 Details Ignore DTR Auto-Answer Calls Answers Call as Data DTR must be high Auto-Answer Calls Answers Call as Data Redwing GPRS User Guide version

20 Circuit- Switched TABLE 3. Examples for model Redwing C3110 Example Auto INIT Command The modem will auto-answer calls, but only when DTR is asserted by a device connected to the modem, and it will assert Carrier Detect (CD) when a call comes in. AT+ATINIT=&C1&D2S0=1$QCVAD=4,C AT Command string &C1 &D2 S0=1 $QCVAD=4 Details DCD reflects state of connection. DTR must be high Auto-Answer Calls Answers Call as Data The modem will auto-answer calls, but only when DTR is asserted by a device connected to the modem, flow-control is off, and the modem will assert carrier detect when a call comes in. AT+ATINIT=&C1&D2S0=1$QCVAD=4%+ IFC=0^0,C,%,^ Note: This command string uses a BREAK character (%) and a comma replacement (^). &C1 &D2 S0=1 $QCVAD=4 +IFC=0,0 DCD reflects state of connection. DTR must be high Auto-Answer Calls Answers Call as Data Turn off flow control (RTS/CTS) TABLE 4. Examples for model Redwing C3111 Example Auto INIT Command You want to have the modem auto-answer incoming data calls. ATS0=1+CICB=0;AT&W The modem will auto-answer calls, but only when DTR is asserted by a device connected to the modem, flow-control is off, and the modem will assert carrier detect when a call comes in. AT&C1S0=1+CICB=0;AT&W;AT+IF C=0,0;AT&W AT Command string S0=1 +CICB=0 &C1 S0=1 +CICB=0 ;AT&W;AT +IFC=0,0 Details Auto-Answer Calls Answers Call as Data DCD reflects state of connection. Auto-Answer Calls Answers Call as Data Saves the previous line and starts a new one. Turn off flow control (RTS/CTS) 15 Redwing GPRS User Guide version 2.20

21 CHAPTER 5 Hardware Installation Your AirLink Redwing should be mounted in a position that allows easy access for the cables so they are not bent or constricted. The LEDs on the front panel should be visible for ease of operational verification. You should ensure that there is adequate airflow around the modem but that it is kept free from direct exposure to the elements (sun, rain, etc.). The exterior of the case should also be grounded. Redwing Mounting Kit An optional accessory for your modem is a mounting kit. The bracket is designed to snugly cradle the modem and hold it in place where you need it. The Redwing snaps into place in the bracket locking into the grooves on the Redwing case. The bracket can be further secured with a twist-tie set into the grooves on the top for situations where the modem may be subjected to violent movement, such as in the back of an automobile. In most stationary installations, such as in a field or pipe, the Redwing and bracket shouldn t require a twist-tie. The bracket can be attached to the location using #6 screws (mounting hole diameter approximately 0.150"). Redwing GPRS User Guide version

22 Hardware Installation FIGURE 1. Redwing Mounting Bracket, part number A Redwing GPRS User Guide version

23 Hardware Installation Connecting the Antenna Your Redwing will work with most standard cellular antennas with a connector and rated to work with GPRS technology. Connect the antenna or first RF cable directly to the TNC connector on the back of the Redwing. Your Redwing will work with most standard GPS antennas. Connect the antenna or cable directly to the threaded connector. FIGURE 2. Redwing connecters Connecting power Your Redwing can be used with either DC (available in most automobiles) or 110 AC (standard US wall power) with the appropriate power adapter (available from AirLink). The power cable positive lead should be connected to the battery or power source positive terminal. The power cable negative lead should be connected to the battery or power source negative terminal. The Redwing has an internal polysilicon circuit breaker that opens at 0.5 to 1.0 amps of current. Redwing GPRS User Guide version

24 Hardware Installation Connecting the Redwing to a computer or other device Your Redwing s serial port can be connected directly to most computers or other devices using a standard straight through cable. If you have a DCE device, you will need a null modem or null modem cable. Redwing Your Redwing can also be connected to a USB to serial device connected to a computer or other device which does not have an available serial port but does have USB. 19 Redwing GPRS User Guide version 2.20

25 CHAPTER 6 AT Commands Just as with a Hayes compatible analog modem, the Redwing parameters can all be configured with AT commands. Direct Serial Connection Using HyperTerminal included with most installations of Microsoft Windows: Start>All Programs>Accessories>Communications>HyperTerminal 1. Choose a name for your connection, such as Redwing or AirLink (if you want to have a connection saved for both local and remote, it is recommended the connection name reflect the connection type, i.e. Redwing local). The name and icon are only for your own reference so you can find the connection at a later date. Redwing GPRS User Guide version

26 AT Commands FIGURE 1. HyperTerminal: Connection Name 2. Select COM1 for the Connect Using. FIGURE 2. HyperTerminal: Comport Setting 3. Change the Bits per Second to (default), Data Bits to 8, Parity to None, Stop Bits to 1, and Flow Control to Hardware. FIGURE 3. HyperTerminal: Comport Settings 4. Type AT and press Enter. You should get a reply of OK or To see what you are typing as you type it, you will need to turn on the echo and verbose mode. Type ATE1V1 and press Enter. 6. If you get a reply of OK, then you entered the command successfully. If you get a reply of 0 or ERROR, try entering the command again. 21 Redwing GPRS User Guide version 2.20

27 AT Commands AT Commands The tables below list the AT commands, their parameters, and explain what they do. For most commands, you need to preface the command with AT (exceptions are noted), i.e. ATA which listed as A Some commands have specific parameters while other commands will take whatever your type. Acceptable parameters and/or specific formats are in the parameters column. Required variable parameters are denoted with italicized text, ex. Dn. The n is variable and noted in the parameters column. Optional parameters are denoted with square brackets [ ]. Most commands with parameters can be entered with? to read the current value (for example, AT&D? will respond with 2 if the default has not been changed). AT Commands are not case sensitive. A capital E is the same as a lower-case e. If you enter a command which is recognized by the Redwing, it will respond with OK. If the command is not recognized, the response will be ERROR. Those commands applicable only to certain model numbers of the Redwing will be noted in the command column. Caution: Symbols listed with commands, such as *, /, &, or?, are part of the command and must be included. Attention : Les symboles comme *, /, &, or? font partie des commandes décrites et ne doivent pas être omis. Most of the Commands in the Information and Status table, only, do not have any parameters. They only provide information. These commands are repeated elsewhere in their respective categories as well. Redwing GPRS User Guide version

28 AT Commands TABLE 1. Information and Status Command I[n] &V +CBIP? +CGSN +CIMI +CMIP? +CSQ +CSS? +GCAP +WGMM +WHWV +WPRL? +WSSW!CNTSMS Details n=0 The modem s internal hardware. n=3 The hardware module's unique ID (ESN). n=5 View active profile (the contents of the active registers). View active profile (the contents of the active registers). Base Station IP Address. ESN (Electronic Serial Number). IMSI (International Mobile Subscriber Identity). Mobile Station IP Address. Received Signal Strength and Channel Frame Error Rate. Serving System. Capabilities. Model identification with supported frequency bands. Serial number of the module. PRL version. Software version of the module. Reports the number of messages stored: New Urgent Msg {Index = 1}: <n> New Regular Msg {Index = 2}: <r> Voice Messages {Index = 3}: <v> C3110 The Index number corresponds to the SMS list index used to retrieve messages. The counters n, r, and v indicate the number of messages in each list. When retrieving (!GSMS) or deleting (!DSMS), the message number is base 0, so the highest message number in any list is the reported count minus one.!rssi C3110 Received Signal Strength Indicator. 23 Redwing GPRS User Guide version 2.20

29 AT Commands TABLE 1. Information and Status Command!SSMS? C3110!STATUS C3110 Details The progress of the last message sent. Possible responses are: pending message has not left the modem (an attempt to use!ssms= again yields an ERROR result code.), sent successfully, sent to the network, delivered successfully, delivered by the network, failed sending, failed and should be retried. Displays the current modem status. Format of response: Current band: <band> Current channel: <chan> SID:<sid> NID:<nid> Roaming:<n> Temp:<temp> Pilot [NOT] acquired Modem has [NOT] registered The preferred method of activating (provisioning) the modem is using the Setup Wizard. However, there are special circumstances when commands may be used instead. TABLE 2. Activation (Provisioning) Command Parameters Details +CGDCONT=1, IP, apn apn=access point name Easy entry of the APN If left blank, the modem will attempt to use the default subscriber value as defined by the account. Si la valeur n'est pas spécifiée, le modem tentera d'utiliser la valeur d'abonné par défaut définie dans le compte. Note: 1, IP, are required and not variable. Quotes need to be placed around the APN. Remarque : 1 et "IP" sont des constantes obligatoires. Le NPA doit être mis entre guillemets. The Raven-E s cellular network is the connection to EV-DO and remote devices or computers. Redwing GPRS User Guide version

30 AT Commands TABLE 3. Cellular Network (Your Wireless Service Provider s GPRS) Command Parameters Details!STATUS C3110 none Displays the current modem status. Format of response: Current band: <band> Current channel: <chan> SID:<sid> NID:<nid> Roaming:<n> Temp:<temp> Pilot [NOT] acquired Modem has [NOT] registered!rssi C310 none Received Signal Strength Indicator Puissance du signal reçu. +CBIP? none Mobile Station IP Address. +CGSN none ESN (Electronic Serial Number). +CICB C3111 n=0 n=1 n=2 n=3 n=4 The mode for answering data/fax calls with A (Answer) or autoanswer via S0=1. Answer as voice (Default) Fax Voice Async data for next call, then revert to Voice. Fax for next call, then revert to Voice. +CIMI none IMSI (International Mobile Subscriber Identity). +CMIP? none Mobile Station IP Address. +COPS=mode,[format] [,oper] mode=0 mode=1 mode=4 format=0 format=2 oper= name +WHWV none PRL version Manually specify an operator. Automatic - any affiliated carrier [default]. Manual - use only the operator <oper> specified. Manual/Automatic - if manual selection fails, goes to automatic mode. Alphanumeric ("name"). Numeric oper uses the format specified in the format parameter. Refer also to *NETOP. 25 Redwing GPRS User Guide version 2.20

31 AT Commands +WIMI=[num] C3111 TABLE 3. Cellular Network (Your Wireless Service Provider s GPRS) Command Parameters Details num=imsi Set the IMSI. Règle l'imsi (International Mobile Subscriber Identity, numéro international d'abonné mobile). A valid IMSI is 15 digits in length; MCC (3), MNC (2), MIN2 (3), MIN1 (7). For support of Wireless Number Portability, changes to the IMSI will NOT update the MDN. Changes to the IMSI will automatically update the Access Overload Class values unless specifically modified using +WAOC command. Un IMSI valide est constitué de 15 chiffres (MCC (3), MNC (2), MIN2 (3), MIN1 (7)). Pour assurer la portabilité des numéros sans fil, les modifications du IMSI n'ont pas d'effet sur le numéro de téléphone mobile. À moins qu'elle soit apportée par la commande +WAOC, toute modification du IMSI conduit automatiquement à la modification des valeurs de Access Overload Class. Generally, Your Wireless Service Provider will provide the IMSI. The Local network for the Raven-E is the one to which it is connected physically via the Ethernet port to your computer, device, hub, or switch. The Raven-E has the ability to provide some NAT (network address translation) to pass communication from the EV-DO network and the Internet to the local device(s) and network. On the local network, the Raven-E acts as a Host. TABLE 4. Local Network Command Parameters Details +++ none AT Escape sequence. The "+" is ASCII 0x2B. This command is not proceeded by AT. If the Raven-E is in a data mode (any mode other than PassThru), this command causes the modem to re-enter AT command mode. Note: There must be an idle time (set by S50) on the serial port before and after this command. Redwing GPRS User Guide version

32 AT Commands S0=n S3=n S4=n S5=n TABLE 4. Local Network Command Parameters Details n=0-127 n=0 n=1 n=2 n=3 (ASCII character number ) n=0-127 (ASCII character number ) n=0-127 (ASCII character number ) This register determines how the Redwing responds to an incoming TCP connection request. The Redwing remains in AT Command mode until a connection request is received. DTR must be asserted (S211=1 or &D0) and the Redwing must be set for a successful TCP connection. The modem will send a "RING" string to the host. A "CONNECT" sent to the host indicates acknowledgement of the connection request and the TCP session is established. Off (Default) On Use Telnet server mode on TCP connections. With a Telnet connection, overrides the client's default echo, allowing the server on the host port to perform the echo. CRLF sequences from the telnet client will also be edited to simply pass CRs to the server on the host port. Carriage Return Character The standard end of line character used to indicate the end of an AT command. This character is also used as the carriage return character for framing responses and result codes in command state. Line Feed Character The standard line feed character sent by the modem to the host at the end of a response or return code in command state. Backspace Character S6=n n=2-10 Wait for Blind Dial This register sets the character recognized as a backspace during command entry. This register denotes the wait time, in seconds, before a blind dial (no dial tone detection). S7=n n = seconds Specifies the number of seconds to wait for a TCP connection to be established when dialing out. 27 Redwing GPRS User Guide version 2.20

33 AT Commands S8=n n=0-255 Comma Pause Time (Dial Modifier) Whenever a dial command contains the comma character, the contents of this register specify the pause time for each comma. S9=n n=0-255 Carrier Detect Response Time Specifies the time that the received carrier must be present for the modem to recognize it and turn on Data Carrier Detect (DCD) if applicable. The implementation is entirely at the IWF modem. S10=n n= Lost Carrier Hang-up Delay (Remote) &Cn &Dn &Sn TABLE 4. Local Network Command Parameters Details n=0 n=1 n=2 n=0 n=2 n=0 n=1 n=2 Specifies the amount of time that the carrier from the remote modem can be lost before the modem goes onhook. This allows temporary disruptions to carrier without disconnecting. A setting of 255 causes the modem to disable Carrier Detect and presume carrier is always present. Set DCD mode. Always assert DCD. Assert DCD when in a data mode (UDP, TCP, PPP, or SLIP) (Default). Assert DCD when the modem has network coverage. Set DTR mode. Ignore DTR, same effect as HW DTR always asserted (same as S211=1). Use hardware DTR (same as S211=0). Set DSR mode. Always assert DSR. Assert DSR when in a data mode (UDP, TCP, PPP, or SLIP) (Default). Assert DSR when the modem has network coverage. Note: S211 can also be used to request that DSR is always asserted. If S211 is set to 3 and &S is changed to a non-zero value, S211 will be changed to 1. Redwing GPRS User Guide version

34 AT Commands TABLE 4. Local Network Command Parameters Details +CICB=n C3111 n=0 +IPR=n $QCVAD=n n=port rate n=1 n= n=0 n=3 n=4 Mode for answering data or fax with the A (answer) or via auto answer (S0=1). Data Speech Data once (10 minute timeout). I/O Port Rate. Sets the data rate for the serial port (DTE-DCE). Default is Mode for answering data or fax with the A (answer) or via auto answer (S0=1). Disable Data for one call. Data for all calls (default). 29 Redwing GPRS User Guide version 2.20

35 AT Commands Direct Communication can be used with the Raven-E to contact other Internet devices to pass information or other tasks. TABLE 5. Direct Communication Command Parameters Details D[method][d.d.d.d][/ppppp] or method = P, T, N d.d.d.d = IP address to contact name = domain name to contact ppppp = IP port to contact Dial a connection to a remote IP and Port using method. P - Establish a UDP connection T - Establish a TCP connection N - Establish a Telnet connection ATD - Dial (establish) default connection. ATDP / Dial (establish) UDP session to , at port To end the connection, issue the +++ escape sequence or drop the DTR line (if Ignore DTR S211=0 or &D2). SMS (Simple Message Service) is another way to send messages via your Wireless Service Provider s cellular network. TABLE 6. SMS (messaging) Command Parameters Details!SSMS=priority,destination,[cb], text priority=0, 1, 2) Send an SMS message. destination= phone number of destination cb= call back number text= text of message enclosed in quotes Note: The text is enclosed in quotations. The quote character cannot appear in the body text. Messages with over 160 bytes of body text will be truncated and sent anyway. Redwing GPRS User Guide version

36 AT Commands TABLE 6. SMS (messaging) Command Parameters Details!SSMS? none The progress of the last message sent. Possible responses are: Pending message has not left the modemsent successfullysent to the networkdelivered successfully Delivered by the network Failed sending Failed and should be retried 31 Redwing GPRS User Guide version 2.20

37 CHAPTER 7 Specifications for the Redwing GPRS Physical Characteristics: Weight: < 1 lb. Size: 3 x 1.1 x 5.1" RF Antenna Connector: 50 Ohm TNC Status LEDs Serial Interface: RS232 DB-9F with bps Data Services & RF Features: Network: 1900/850 MHz GPRS Transmit frequency: MHz and MHz Transmit power range at antenna port: 1.0 W for 1900 MHz and 0.8W for 850 MHz Transmitter can reduce output power when near a base station as per GSM specifications Receiver frequency: MHz and MHz Receiver sensitivity: typical -107 dbm (2.439% bit error rate) Multislot Class 8 Redwing GPRS User Guide version

38 Specifications for the Redwing GPRS Circuit Switched Data Capable (14,400 Transparent and Non-Transparent Modes) Environmental: Operating ranges: -30 C to +70 C Humidity: 5%-95% Non-condensing Power Management: Low power consumption Dormant connection (idle for seconds): 20 ma at 12 VDC Input Voltage: 10 VDC to 28 VDC Input Current: 20 ma to 350 ma Typical Receive: 120mA at 12VDC Typical Transmit: Approximately 120 ma at 12VDC Low power mode: at 12 VDC Short Message Service (SMS): Send and Receive Short Message Service (SMS): Send and Receive Notification of new messages Redwing GPRS User Guide version

39 Troubleshooting If you encounter problems with your Redwing, AirLink s support staff can help. Support web site The Airlink web site is updated frequently with Setup Wizards, Utilities, FAQs, and other documentation: Contacting Technical Support For support assistance please support@airlink.com or call Monday through Friday 5 AM to 5 PM Pacific Time (8 AM to 8 PM Eastern Time). Support is not available weekends or holidays. Redwing GPRS User Guide version

40 Redwing GPRS 35 Redwing GPRS User Guide version 2.20