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User’s Manual

 

 
 
 
 
 

CDMA Cellular  – Model CDM819i Intelligent Serial Modem  

CDMA Cellular   – Model CDM820i Intelligent Ethernet Modem

 

 
 
 
 
 
 

Items denoted with a † must be prefaced with the  

AT+LCPAST=1

 command before execution. 

 
 
 
 
Revision 2.91 
June 2004 

 

 

Land-Cellular Corp. 

12068 Miramar Parkway 

Miramar, FL 33025 

1-954-430-5811 

www.land-cellular.com 

Summary of Contents for CDM819i

Page 1: ...odem CDMA Cellular Model CDM820i Intelligent Ethernet Modem Items denoted with a must be prefaced with the AT LCPAST 1 command before execution Revision 2 91 June 2004 Land Cellular Corp 12068 Miramar...

Page 2: ...he Mobile Country Code MCC 5 7 Entering The Mobile Network Code MNC 5 8 v 250 Configuration Commands 6 0 I Identification 6 1 Z Soft Reset And Restore Saved Settings 6 2 E Command Echo 6 3 Q Quiet Mod...

Page 3: ...orm An Over the Air Activation Of The Unit 11 3 What Is The AT Command To Change The Baud Rate Of The Modem 11 4 What Is The AT Command To Check The Baud Rate 11 5 What Is The AT Command To Change The...

Page 4: ...Mounting Flange Guide 16 3 Copyright Notice 17 0 Limited Warranty 18 0 Appendix 19 0 Addressed Serial Protocol Specification 19 1...

Page 5: ...major subcomponent comes in the form of an onboard RISC microprocessor which bridges the gap between your DTE communications terminal and the digital cellular module The modem s firmware processes th...

Page 6: ...the buffer to the remote station during Online Command State Online Command State may be entered from Online Data state through the use of the escape sequence or via change of DTR state as configured...

Page 7: ...ty to the base station and other factors CDMA 3G 1x systems support data rates of up to 153 6Kbps 1 6 Status Indicators There are a total of four LED s on the Land Cellular Intelligent Modem two green...

Page 8: ...em You can access the modem through a terminal emulation program such as Hyperterminal which should already be installed in your version of Windows To launch Hyperterminal click on the Start Menu go t...

Page 9: ...ir Service Provisioning OTASP and Over the Air Parameter Administration OTAPA OTASP occurs when a user initiates a call to the service provider No further commands are required to provision the modem...

Page 10: ...on with the modem To alter the default speed of 57600bps first connect via your terminal emulation software settings 57600bps 8 N 1 Hardware Now you may issue the AT IPR command to query or change the...

Page 11: ...hing the modem using the following command AT CSQ See also the FAQ for more information on No Carrier issues 4 Attempt to relocate the modem and or antenna to receive a stronger signal 5 Make certain...

Page 12: ...MNC if the modem is not already programmed for operation in your area If required these codes are available from your CDMA provider To change the MCC type AT KWMCC 3 digit MCC 5 8 Entering The Mobile...

Page 13: ...in command mode controls whether the modem will send result codes and unsolicited responses to the host This does not suppress the modem from sending solicited responses Default Q1 Storage W Command...

Page 14: ...es Escapes to Online Command State 6 9 F Restore Factory Defaults F loads the modem s factory default configuration The factory default values for each parameter command can be found in the descriptio...

Page 15: ...state upon an on to off transition of DTR AT D5 The modem auto dials default remote station as determined by AT LCPRFL upon an on to off transition of DTR and enters online data state The modem ends...

Page 16: ...circuit Default S0 Storage W Command Values AT S0 DSR always ON AT S1 DSR ON when the RF signal present and phone registered on network AT S2 DSR ON when connected to CDMA AT S3 DSR always OFF AT S4 D...

Page 17: ...the CR carriage return character by itself Default 0 Storage W Command Command values AT LCCROK 0 Do not send OK in response to CR AT LCCROK 1 Send OK in response to CR 6 18 AT LCNOLF Disable Sending...

Page 18: ...nternal RF module utilizing UART 2 7 0 Session Management Commands This Session Management section details the commands designed to facilitate connecting via the cellular network In many cases use of...

Page 19: ...com vzw 0 1 209 42 39 164 80 This will set up profile number 1 with MIP Only packet data username 9544305811 vzw3g com and password vzw and a TCP data transport Further this particular session will s...

Page 20: ...ation Commands PAD which stands for Packet Assembler Disassembler is a function employed by the RISC processor to split the incoming data stream into discrete packets for transmission over the cellula...

Page 21: ...configure the RJ45 Ethernet port There is no error checking beyond octet validation Four octets of 0 255 for any of the ethernet address assignments E g If you set the netmask to an invalid address th...

Page 22: ...e proxy for your needs How It Works The command line arguments for AT LCPROX are as follows AT LCPROX id type count listenport remoteport remoteaddress The first argument id specifies the proxy config...

Page 23: ...rcepted on listenport is forwarded out of the modem on remoteport Even if the data is sent out over the ethernet connection to a local non routable IP address it is considered remote because that IP a...

Page 24: ...and will set the modem to perform an outbound NAT to the IP and port specified To activate the proxy for outbound traffic simply access the ethernet port from your computer To further illustrate the I...

Page 25: ...u create the GRE tunnel by accessing the ethernet port on the modem To test this go into Windows and create a VPN to IP 192 168 1 222 When you click Connect a packet is forwarded from the computer to...

Page 26: ...s designed to function as closely as possible to removing and reapplying power to the modem without actually doing so This reboot will occur at the specified interval regardless of any other condition...

Page 27: ...a a terminal emulation package such as a PC running Hyperterminal Once connected to the modem enter AT CDV 22899 and wait several minutes Then power cycle the modem and perform a test For more informa...

Page 28: ...rvice supports a dormancy feature When no data is being transferred on the air link for a period of time the traffic channel is released However PPP states and the IP address are retained To the end u...

Page 29: ...more legible if desired The Basic and S Register commands may follow each other on the command line without any separating delimiters The Extended Format Commands those beginning with a character must...

Page 30: ...le busy detection Disable dial tone detection X4 Enable additional result codes CONNECT rate BUSY and NO DIALTONE Enable busy and dial tone detection Z0 Reset to default configuration F0 Effect is imp...

Page 31: ...et up as AT IFC 2 2 to allow hardware flow control in both directions IPR Fixed Rm Rate This numeric extended format parameter specifies the data rate at which the MT2 will accept commands in addition...

Page 32: ...ng System Read Only Returns AB SID AB A The mobile station is registered with an A band system B The mobile station is registered with a B band system Z The mobile station is not registered SID 0 1638...

Page 33: ...the ATD command This command does not cause the MT2 to change to the online state 13 0 Layer 1 Hardware Communications This section covers the basic Layer 1 protocols for hardware integration of the m...

Page 34: ...t commonly used in day to day operation of the modem Entering Access Codes To retrieve the Serial Number of the modem in hexadecimal format AT GSN To perform Over the Air Service Provisioning OTASP AT...

Page 35: ...oming connections for async calls AT QCVAD 4 To set up the modem for auto answer ATS0 1 To enable automatic packet call connections AT QCPKND 0 To disable automatic packet call connections AT QCPKND 1...

Page 36: ...enter Online Command state Return to Online State from Command State ATO0 Reset to default configuration ATZ0 AT commands Digit Word Cross Reference Digit Word 0 OK 1 CONNECT 2 RING 3 NO CARRIER 4 ER...

Page 37: ...r RSSI Green Power Next To Power Jack Command Protocol AT Command Set SMS Command Set Modem IS 707A Compatible IS 95A B Complies With JSTD 008 and IS 95 JSTD 018 and IS 98A IS 707 and IS 99 data servi...

Page 38: ...1 End Cap Frontal Vie ws The first drawing listed below shows the front side of the modem The six holes illustrated are as follows left to right 1 GPS Antenna SMA Connector 2 Amber Carrier Detect DCD...

Page 39: ...cap shows the mounting feet extending beneath the body of the modem by a distance of 0 040 as indicated by the 1 650 end cap height The modem case is only 1 610 high without the end caps attached 16 3...

Page 40: ...ration Windows Windows 98 Me NT 2000 XP XP Professional and Dial Up Networking are registered trademarks of Microsoft Corporation HyperTerminal is a trademark of Hilgraeve Inc ProComm is a registered...

Page 41: ...y be required Company shall have no obligation to make repairs or to cause replacement required through normal wear and tear necessitated in whole or in part by catastrophe fault or negligence of the...

Page 42: ...he 5th byte of the information field of each frame Frame Format A summary of the HDLC like frame structure is shown below This figure does not include bits inserted for synchronization such as start a...

Page 43: ...most significant octet equals 0 and the least significant bit of the least significant octet equals 1 Presently the only defined protocol type is 0x99 Addressed Serial Data i e All frames start with 0...

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