Provisional Ver1.8 ASL Holdings Ltd User Guide for the: - DELTA PLUS LAN modem ASL Holdings Ltd,The Oaks, Spring Hill Office Park, Spring Hill Farm, Harborough Road, Pitsford, Northampton, NN6 9AA Tel:+44 (0)1604 883 880 Fax:+44 (0)1604883881, e-mail:sales@aslholdings.co.uk, web: http://www.aslholdings.co.uk
CONTENTS CHAPTER 1 INTRODUCTION 3 CHAPTER 1 GETTING STARTED 4 1.1 Using LAN MODEM for the first time...4 1.2 Testing LAN operation...5 1.3 Configuring LAN MODEM...5 1.4 Trace facility...6 1.5 Making and receiving calls...7 CHAPTER 2 AT COMMANDS 8 2.1 Configuration display...8 2.2 Actions...8 2.3 General Configuration...8 2.4 S-Registers...9 2.5 AT Command responses...9 2.6 Serial Interface commands...10 2.7 LAN Interface commands...11 2.8 Debugger...11 CHAPTER 3 COMMAND PORT COMMANDS 12 CHAPTER 4 TECHNICAL SPECIFICATION 13 4.1 Power and environment...13 4.2 Interfaces...13 4.3 Physical...13 4.4 LAN protocol support...13 4.5 TCP port numbers...14 4.6 Serial port...14 4.7 Software upgrades...14 Delta Plus LAN modem V1.8 19/09/2005 page 2 of 14
CHAPTER 1 Introduction This manual covers the LAN MODEM Terminal Server. The LAN MODEM terminal server enables software applications designed to communicate using modems, to communicate over a LAN instead. LAN MODEM has a serial port that emulates a Hayes AT modem, and a LAN interface using the TCP/IP protocol. LAN MODEM may be configured either with AT commands to its serial interface, or via its LAN interface by a Web browser or Telnet terminal. Delta Plus LAN modem V1.8 19/09/2005 page 3 of 14
CHAPTER 1 Getting Started 1.1 Using LAN MODEM for the first time Before using LAN MODEM for the first time, it is necessary to configure the IP address as follows: 1. Connect the power supply to the LAN MODEM and switch on. 2. Connect the serial (or COM port) of a PC to the LAN MODEM using a standard modem cable. 3. Configure the terminal package of the PC for 38400bps, 8 data bits, 1 stop bit, no parity. 4. Type AT and enter on the PC, the response OK should appear on the next line when enter is pressed. 5. Configure the IP address. The IP address should be unique on the network to which LAN MODEM will be connected, and is available from the network administrator. Type AT!Iaa.bb.cc.dd enter. (The LAN MODEMs IP address is now aa.bb.cc.dd). To verify that the address has been accepted, type AT*C1 enter to view a configuration report similar to the one below. AT*C1!I IP addr 10.0.0.1!N Netmask 255.255.255.0!G Gateway 0.0.0.0 Subnet 10.0.0.0 Mac addr 11-22-33-44-55-66 OK Local TCP port 2000 Remote TCP port 2000 Idle disconnect time 300 (secs) 6. Now configure the network mask in a similar manner to the IP address. 7. If the LAN MODEM will be initiating calls to a station on another network which is accessible via a router then enter the address of the router using the AT!G command (Gateway), 8. Finally save the settings by typing AT&W and Return. Cycle power to the LAN MODEM by either using ATY and Return or remove Power momentarily. Once done the LAN modem is ready for use. Delta Plus LAN modem V1.8 19/09/2005 page 4 of 14
1.2 Testing LAN operation Connect LAN MODEM to the LAN using a standard CAT5 cable. To verify LAN MODEM is functioning correctly, PING it from a PC on the same LAN and check there is a response. To PING the LAN MODEM from a Windows PC, proceed as follows: Click on start Click on run Type PING aa.bb.cc.dd in the dialogue and click on OK A DOS window similar to the example below should be displayed. C:\WINDOWS\Desktop>ping 10.0.0.1 (Substitute the IP address programmed into the LAN modem.) Pinging 10.0.0.1 with 32 bytes of data: Reply from 10.0.0.1: Bytes=32 time=2ms TTL=128 Reply from 10.0.0.1: Bytes=32 time=2ms TTL=128 Reply from 10.0.0.1: Bytes=32 time=2ms TTL=128 1.3 Configuring LAN MODEM LAN MODEM may be configured with AT commands, or via its LAN interface with a Web browser or an interactive Telnet terminal session. Web browser Type the IP address of the LAN MODEM into the address pane of the web browser and press enter. The LAN MODEM home page will be displayed offering the most common configuration options. When LAN MODEMs configuration is changed the new settings can be saved from the load and save settings page. Until the save option is selected, LAN MODEM will continue working with its current settings. N.b. If LAN MODEM is switched off before new settings have been saved, they will be lost. Command port via Interactive Telnet session LAN MODEM has a command line configuration utility that may be accessed using a Telnet terminal such as Telnet (Windows), or Hyperterminal (Select TCP/IP instead of a COM port). To gain access, configure the telnet software to connect to the IP address of the LAN MODEM, choosing port number 23, the standard TELNET port number. A list of commands will be displayed on the screen when you type help. Note that the command interface requires commands to be entered in lower case. A list of supported commands may be found by referring to the appropriate section of this guide. To view the IP address type show lan using lower case characters. Delta Plus LAN modem V1.8 19/09/2005 page 5 of 14
1.4 Trace facility LAN MODEM prints its activities to a log that may be viewed by connecting to port 84 using a telnet terminal program. This facility is generally only required for help in debugging connection issues. The type and severity of events that are reported may be selected using the trace command of the Command port interface (above). Delta Plus LAN modem V1.8 19/09/2005 page 6 of 14
1.5 Making and receiving calls If you have used AT modems, the procedures for making and answering calls with LAN MODEM should be familiar. When dialling, substitute the destination IP address and port number for the phone number. LAN MODEM will communicate with any compatible device supporting TCP/IP over the LAN. This includes another LAN MODEM, terminal servers, or application software running on host computers. To make a call to IP address 10.0.0.2 port 23 <Responses from the LAN MODEM are parenthesised like this> ATD010000000002 P23 (Dial command. Alternative - ATD10.0.0.2 P23) <CONNECT> (Call connected) The remote port number may be omitted, in which case the default port number will be used. The default remote port number is 2000 and can be reconfigured with the command ATS1009=<remote port number>. When an incoming TCP call is detected on port 2000, LAN MODEM will report RING as follows: RING RING RING ATA <CONNECT> (After 2 seconds) (After 2 seconds) (User command to answer the call) (Call connected) To disconnect a call, either: Drop DTR. Typically, selecting hang up in your communications software will drop DTR. Or, type +++ as follows: (Call connected) +++ (User command to enter AT command mode) <OK> (LAN MODEM is still connected but in command mode) ATH (User hang-up command) <NO CARRIER> (Call cleared) Delta Plus LAN modem V1.8 19/09/2005 page 7 of 14
CHAPTER 2 AT Commands 2.1 Configuration display Command Function Parameter Notes *C Display configuration summary *C1 Display LAN interface configuration *C2 Display ARP cache I Display Product Version 2.2 Actions A Answer Incoming Call. D Dial Command <aaabbbcccdddeee> P<port number> <a.b.c.d> P<port number> Establish a TCP session The remote port parameter is optional and may be configured using ATS1009=<port number> DL Dial Last number Dials last number (IP address) dialled H Hang Up Disconnect TCP session Y Reboot Immediate soft reset. 2.3 General Configuration Sn= Set S Register n See section describing S Register functions &F Load Factory settings LAN settings are not affected &W Save configuration Save configuration profile Z Soft reset Load saved profile X AT responses 0 Do not report connect speed 1 Report CONNECT TCP/IP 2 Report connect speed eg CONNECT 1200 Delta Plus LAN modem V1.8 19/09/2005 page 8 of 14
2.4 S-Registers 0 Rings to answer 0 2 Command mode escape char 43 ( + ) 0 disables, (set to 2 for GPRS host use). 42 Any char dial abort 1 0 disables 1007 TCP idle session disconnect timer 300 Seconds 1008 Local TCP port for incoming calls 2000 1009 Remote TCP port for outgoing calls 2000 2.5 AT Command responses Command Function Parameter Notes E Echo AT Commands 0 Echo off 1 Echo on V AT Responses 0 Numeric ( OK = 0 ) 1 Verbose ( OK = OK ) Q AT Responses 0 On 1 Off The following table shows the numeric equivalent to verbose responses. Verbose Numeric Description OK 0 Command line accepted CONNECT 1 TCP session established RING 2 Remote station requesting TCP session on port 2000 NO CARRIER 3 TCP Session closed or remote refuses connection ERROR 4 Command line syntax error NO DIALTONE 6 Unable to find requested host (no response to ARP request) ABORTED ABORTED Dial operation aborted Delta Plus LAN modem V1.8 19/09/2005 page 9 of 14
2.6 Serial Interface commands Command Function Parameter Notes &B DTE port autobaud 0 Fixed baud rate 1 Autobaud B DTE port fixed baud rate 0,1,2 38400bps - Default 3 19200bps 4 9600bps 5 4800bps 6 2400bps 7 1200bps F Data bits and parity 0 8 data no parity 1 7 data even parity 2 7 data odd parity &C Data Carrier Detect 0 DCD always on 1 DCD on when online &D Data Terminal Ready 0 Ignore DTR. Assume always on 1 DTR hangup 2 DTR hangup 3 DTR rise dial!d DTR rise dial number a.b.c.d IP address to call on DTR rise &k Flow control 0 Off 1 X on / X off 2 RTS / CTS 3 CTS on line Should we have a section on the IE set ups / options? Delta Plus LAN modem V1.8 19/09/2005 page 10 of 14
2.7 LAN Interface commands Command Function Parameter Notes!I Set IP address a.b.c.d Valid IP address in dotted decimal format!n Set IP network mask a.b.c.d Network mask. Default = class C network = 255.255.255.0!G Set gateway IP address a.b.c.d Valid IP address in dotted decimal format!t Disable TCP disconnect timer 0 This setting is not saved 2.8 Debugger Command Function Parameter Notes &T Debug output 0 Debug output off 1.5 Debug output on, level 1.5 Delta Plus LAN modem V1.8 19/09/2005 page 11 of 14
CHAPTER 3 Command port Commands Connect to the command port interface by running a telnet program, selecting port TELNET (or 23) and connecting to the IP address of the LAN MODEM. Type: help <command> to get help CHAPTER 4 Debug trace Commands Connect to the trace port interface by running a telnet program, selecting port 84 and connecting to the IP address of the LAN MODEM. LAN modem sends a log of its operations to the trace port, and the following commands can be used to affect the trace: A Trace all events P Pause / un-pause trace 1 5 Set severity level. Level 1 only traces system faults, level 5 traces all activity. I Toggle IP tracing T Toggle TCP tracing C Clear screen In addition to the above, trace information may be filtered to display only the required protocols. The command port command trace offers a number of trace filters: all off lan arp tcp ip modem system html udp Eg. To add html to the trace type trace html The severity level can be set from the command port: trace level 1 5 A message may be sent to the trace log from the command port with the command: Trace out hello Delta Plus LAN modem V1.8 19/09/2005 page 12 of 14
CHAPTER 4 Technical specification 4.1 Power and environment Power source Power supply Power consumption Operational temperature range Either: External power supply Or: +VDC via RS232 - pin 15 & or 9, Common Ground - pin 7. VDC 600mW / 450Mw (Low power version) C - C 4.2 Interfaces DB25F configuration RJ45 Power RS232 serial port, DCE (modem) 10baseT LAN External power supply 4.3 Physical Size Weight 60W* 65D* 24H 60g 4.4 LAN protocol support 802.3 I EEE802.3 frame on 10mbps LAN ARP Address Resolution Protocol ICMP Internet Control Message Protocol IP Internet Protocol TCP Terminal protocol HTTP Hypertext Transfer protocol 1.0 UDP Unnumbered Datagram Protocol TFTP Trivial File Transfer Protocol for software upgrades (not currently implemented) rfc2217 TCP COM port control protocol Delta Plus LAN modem V1.8 19/09/2005 page 13 of 14
4.5 TCP port numbers Modem port 2000 Remote connection to serial port using modem emulation Trace port 84 RMON Trace events. Filter events using command port HTTP 80 HTTP Web browser configuration COM Port 23 TELNET Type help for a list of commands 4.6 Serial port AT command set Hayes AT commands plus extensions for IP 4.7 Software upgrades Serial port LAN Using Xmodem transfer Using TFTP (not currently implemented) Contact ASL HOLDINGS LTD for the latest software and upgrade procedure. ASLH S policy is to upgrade and improve its products. The right is reserved to change these specifications without notice. ASL HOLDINGS LTD. The Oaks Tel : +44 (0) 1604 883880 Spring Hill Office Park Fax : +44 (0) 1604 883881 Spring Hill Farm Harborough Road E-mail : sales@aslholdings.co.uk Pitsford Web : www.aslholdings.co.uk Northampton NN6 9AA Delta Plus LAN modem V1.8 19/09/2005 page 14 of 14