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 1-9...
Contents introduction ................................................................................................................................. 1.0 overview................................................................................................................................ 1.1 mod...
Atdn connection string......................................................................................................... 7.2 at+lcgasc enable 1xrtt auto-session connect................................................................ 7.3 at+lcgrst end cellular session ............................
Mounting flange guide .........................................................................................................16.3 copyright notice .........................................................................................................................17.0 limited warranty ...........
1.0 introduction thank you for purchasing the land-cellular intelligent modem. This guide makes reference to the cdm819i and cdm820i modems collectively as the "modem". These devices are cdma2000-3g compatible and provide you with the convenience of a wireless connection from anywhere cdma cellular ...
·online command state when first powered on, the modem is in the command state where it is able to accept industry-standard at commands. When instructed to dial out or to answer a data call, the phone is in the online state. The "quick reference guide", section 14.0 has more information on how to en...
This data service is proprietary to verizon. The dmu option is a customer account provisioning in the verizon network and is a more powerful subset of 1xrtt packet data. 1.5 speeds data rate from your computer to the modem the land-cellular cdm series data modems are capable of sending and receiving...
·if the rssi led is on solid, this indicates an rssi level of -90dbm or greater. While not in a data session, the modem checks for rssi once every 5 seconds, which causes the tx/rx led to blink briefly. 2.0 modem setup guide this following subsections will assist in configuring your modem to interfa...
The hyperterminal connection should now be active. As a test, we'll send the standard attention code to the modem. Type the command: at and press enter. If properly interfaced with the modem, you should receive an ok reply. If not, make certain that the modem's power led is illuminated and the bit r...
First, make certain that you are not including any hyphens or spaces in the atd dialing string. For example, you should be entering atd9544305811. After verifying that you have properly entered the dialing string, if the modem still will not place an outbound call, you may have to enter the phone nu...
If you are experiencing problems connecting to the cellular network, you can verify if the issue is between the computer and the modem or between the modem and the cellular network. To test, open your terminal emulation software as described in the "using terminal emulation software to talk to the m...
Mode to offline digital by typing: at$kwmode=1 † after changing this or any other parameter, you may query the modem, by typing a "?" in place of the "=". For example, to confirm that you are in the offline digital operational mode, you would type: at$kwmode? † 5.5 unlocking the service programming ...
Ati report product identity. 6.2 z soft reset and restore saved settings the "z" command will soft reboot the modem without removing power. Default: n/a storage: n/a command values: atz resets the modem. 6.3 e command echo while in command mode, "e" controls the echo of characters received by the mo...
Storage: n/a command values: ath disconnects the current session. 6.7 o return to online state this command instructs the modem to return to online data state and issue a connect or connect result code. Default: n/a storage: n/a command values: ato returns to online state. 6.8 +++ enter online comma...
This parameter determines how the modem responds when the data terminal ready circuit changes state. The &d5 and &d6 settings allow customer specific applications to be controlled via the dtr line. Default: &d0 storage: &w command values: at&d0 ignore dtr. At&d1 if in online data state, upon an on-t...
Remote station (as determined by at+lcprfl) 6.12 &r rts configuration this parameter determines how the modem responds when the request to send circuit changes state. The state of this parameter may be affected by the state of the +ifc parameter and vise versa, the last issued command takes preceden...
Command values: at&c0 dcd always on. At&c1 dcd on when connected to remote host. At&c2 dcd always off. At&c3 dsr controlled via i/o control feature. 6.16 &n ri configuration this parameter determines how the modem controls the state of the ring indicator circuit. Default: &n storage: &w command valu...
Storage: &w command command values: at+lcnoer=0 send error response to unknown commands. At+lcnoer=1 send ok response to unknown commands 6.20 at+lcpast pass unknown v.250 commands to the cellular module enables or disables pass-through of v.250 commands that the intelligent modem’s v.250 command in...
2.) connection type: 0=sip only 1=mobile ip only 3.) phone number to dial: atd#777-for high-speed data calls 4.) username: username for this connection 5.) password: password for this connection 6.) transport method: 0=tcp connection 1=udp connection 7.) modem functionality: 0=modem will act as a cl...
Storage: &w command command values: at+lcgasc=0 maintain command state unless a connection is otherwise initiated with the atd or atd* command. Also disconnects an existing session. At+lcgasc=1 autoconnect to the 1x network via profile #1 at+lcgasc=2 autoconnect to the 1x network via profile #2 at+l...
Default: 50 storage: &w command values: at+lcidct= where is a number between 0 and 65535 seconds. 8.3 at+lcsest session disconnect timer this command is used to configure the session disconnect timeout used by the pad service. Session will be unconditionally closed and the usual disconnect response ...
This command will set the current tcp/ip gateway of the modem. Default: 0.0.0.0 storage: &w command values: at+lcethg= sets the tcp/ip gateway address. At+lcethg? Queries the tcp/ip gateway address. 9.4 at+lcethr print the route table this command will print a copy of the modem’s routing table. Defa...
The modem is placed into gre mode by configuring the first proxy line to use 1723 as listenport and remoteport and by setting the second and third proxy lines for type 3 and 4 and port 0. * see the examples below for more information and practical application. In gre mode, the proxy first sets up a ...
1=tcp, 2=udp, 3=gre local end, 4=gre remote end number of simultaneous tcp/udp sessions. Port on which to listen. Remote port to connect to. Remote address to connect to. To erase a proxy line, one would create a new proxy with the id> to be erased for the first argument followed by “0” for all othe...
That you are about to establish a gre tunnel to the ip specified. The next two proxy lines instruct the modem how and where to lay the gre tunnel. Please note that for the local and remote ends of the gre tunnel, you do not specify port numbers to transport data over. In the above examples, the tunn...
Messages at local rs-232 port. 4 reserved 8 reserved 16 reserved 32 reserved 64 reserved 128 reserved 10.2 at+lcshwt show running threads this command will issue a list of all threads currently executing in the modem. Default: 0 storage: na command values: at+lcshwt show all running threads. 10.3 at...
Where is a number between 0 and 65535 minutes. 11.0 frequently asked questions below are twelve of the most frequently asked questions. The answers contained herein may address many of the questions you could have about our product. 11.1 does the modem understand at commands? Yes. For information on...
By default, the modem is set up as at+ifc=2,2 † to allow hardware flow control in both directions. 11.7 when do i need a null modem cable? The land-cellular modem's rs-232 serial port is wired to act as the data communication equipment (dce), while a typical home computer or laptop system is designa...
The parameters set by the various at commands in this appendix are applied to all subsequent calls and will be used each time you place a call. As such, your custom settings will be available until you power down the modem. These settings are lost upon power-down. New revisions of the modem’s firmwa...
7 busy busy signal detected. 8 noanswer five seconds of silence not detected after ring back when @ dial modifier is used. 12.4 basic at parameters these commands control the basic configuration of the modem. The parameters can only be read back by the at&v† command when in command state. The follow...
An extended command must be terminated with a semicolon if another command follows it in the same command line. The following table describes the extended at configuration commands. Extended at configuration commands table command description +ifc † te2-mt2 local flow control. This extended-format c...
0 odd 1 even the argument is only valid when is set to 2. The default settings for the modem are at+icf=3,1 †. 12.6 cellular cdma commands the cellular cdma commands use the same syntax as the other extended commands. Numeric values are decimal. The following table describes the cellular cdma comman...
Note 1: the exact meaning of the signal quality measure shall be manufacturer defined. The lowest quality reported by sqm shall be defined as value: 00. The highest quality reported by sqm shall be defined as value: 31. Cellular at command extensions in support of voice services table these commands...
Default rs-232 communication parameters: bits per second: 57600 data bits: 8 parity: none stop bits: 1 flow control: hardware 13.2 rj-45 ethernet port integration parameters you can use the guide below to design ethernet cables to integrate the cdm820i into your systems. Standard rj-45 ethernet pino...
1: xon/xoff, 2: hardware) query analog or digital service: at+cad? † returns: 0: no service is available. 1: cdma digital service is available. 2: tdma digital service is available. 3: analog service is available. To check the signal strength: at+csq? † returns , signal quality measure : 0-31: signa...
To repeat the last command issued: a/ † to 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 error 6 no dial tone 7 busy 8 no answer.
15.0 cdma wireless data modem cdm819i/cdm820 specifications power: input: 2.1mm/5.5mm dc barrel jack - center positive, 8-24vdc @ 1.5a primary port: rs-232 serial, 1 rj-45 (optional) interface connector: 1 db-9 female, 1 rj-11 (optional), 1 rj-45 (optional) antenna connector: a-gps: 50 o sma female ...
16.0 cdm819i/cdm820 mechanical specifications the following section describes in detail the exterior dimensions of the cdm819i/cdm820 and how to utilize the mounting flanges to secure the modem to any surface which can be drilled for such a purpose. All of the drawings below are the approximate actu...
16.2 end cap overhead & profile views the next two drawings show the overhead and profile views of the end cap. These drawings show the mounting feet and the mounting hole diameter of 0.120”. This profile view of the end cap shows the mounting feet extending beneath the body of the modem by a distan...
17.0 copyright notice cdm819i and cdm820i are a registered trademarks of land-cellular corporation. 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 register...
18.0 limited warranty land-cellular (the company) warrants that it's product shall be free from defects in materials and workmanship for a period of one year from the date of shipment. Land-cellular warrants any software sold alone or with any of its products shall be free from defects (according to...
19.0 appendix below is a brief description of the addressed serial protocol specification. Please see section 8.2 “at+lclenc local data encoding” for more information on how the to enable addressed serial protocol. 19.1 addressed serial protocol specification land-cellular has implemented addressed ...
The protocol field is consistent with the iso 3309 (hdlc) extension mechanism for address fields. All protocols are assigned such that the least significant bit of the most significant octet equals "0", and the least signif icant bit of the least significant octet equals "1". Presently the only defi...