Multitech MultiConnect Adapter User manual

MultiConnectAdapter
Serial-to-Serial Adapter with IP
User Guide

Multi-Tech Systems, Inc. MultiConnect Adapters User Guide (S000344B) 2
MultiConnectAdapter User Guide
Serial-to-Serial Adapter (MTS2SA-T & MTS2SA-T-R)
PN S000354A, Version A
Copyright
This publication may not be reproduced, in whole or in part, without prior expressed written permission
from Multi-Tech Systems, Inc. All rights reserved.
Copyright © 2004, by Multi-Tech Systems, Inc.
Multi-Tech Systems, Inc. makes no representations or warranties with respect to the contents hereof and
specifically disclaims any implied warranties of merchantability or fitness for any particular purpose.
Furthermore, Multi-Tech Systems, Inc. reserves the right to revise this publication and to make changes
from time to time in the content hereof without obligation of Multi-Tech Systems, Inc. to notify any person
or organization of such revisions or changes.
Revisions
Revision Level Date Description
A07/12/04 Initial releasefor Serial-to-Serial adapter.
Trademarks
MultiConnect, Multi-Tech, Multi-Tech Systems, Inc., and the Multi-Tech logo.
All other products or technologies are the trademarks or registered trademarks of their respective holders.
Patents
This device is covered by one or more of the following patents: 6,031,867; 6,012,113; 5,628,030;
5,450,425. Other patents pending.

Table of Contents
Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A) 3
Table of Contents
Chapter 1 – Product Description & Specifications.................................................................................. 6
Product Description ................................................................................................................................... 6
Applications ............................................................................................................................................... 6
Types of Adapters Available...................................................................................................................... 7
Package Contents ..................................................................................................................................... 7
Handling Precautions ................................................................................................................................ 7
Specifications ............................................................................................................................................ 8
LED Indicators ......................................................................................................................................... 10
RS-232 9-Pin Connector Pinout .............................................................................................................. 10
Chapter 2 – Installation............................................................................................................................. 11
Attaching the MultiConnect to a Fixed Location...................................................................................... 11
Serial-to-Serial Adapter Installation......................................................................................................... 12
Connecting the Cables ............................................................................................................................ 12
Connecting the Power ............................................................................................................................. 13
Chapter 3 – Managing and Configuring the MultiConnect Adapter..................................................... 14
Two Ways to Login .................................................................................................................................. 14
Login Using TTY .................................................................................................................................. 14
Login Using Telnet through the PPP Interface .................................................................................... 14
About Command Mode and Data Mode.................................................................................................. 14
Chapter 4 – Command Line Interface (CLI) ............................................................................................ 15
General Notes ......................................................................................................................................... 15
General Setup Commands...................................................................................................................... 16
IP Setup Commands ............................................................................................................................... 23
Serial Setup Commands.......................................................................................................................... 27
PPP Setup Commands............................................................................................................................ 42
HTTP Server Commands ........................................................................................................................ 47
SMTP Client Commands ......................................................................................................................... 49
POP3 Client Commands ......................................................................................................................... 52
FTP Client Commands ............................................................................................................................ 55
SNTP Client Commands ......................................................................................................................... 57
Chapter 5 – Setting Country or Region Codes Using the CLI .............................................................. 61
Chapter 6 – Prerequisite Configurations ................................................................................................ 62
Chapter 7 – Telnet Dialout........................................................................................................................ 65
Introduction.............................................................................................................................................. 65
Prerequisites............................................................................................................................................ 65
Scenario 1 – Manual Dialout ................................................................................................................... 67
Scenario 2 – Auto Dialout........................................................................................................................ 69
Scenario 3 – Auto Dialout in RAW Mode ................................................................................................ 71
Chapter 8 – Auto Dial-in Feature ............................................................................................................. 73
Introduction.............................................................................................................................................. 73
Prerequisites............................................................................................................................................ 73
Scenario 1 – Manual Serial Dial-in .......................................................................................................... 74
Scenario 2 – Serial Auto Dial-in in Telnet Mode ..................................................................................... 76
Scenario 3 – Auto Dial-in Session in RAW Mode ...................................................................................78
Scenario 4 – Serial Tunneling Mode ....................................................................................................... 79
Chapter 9 – Modem (Transparent) Mode ................................................................................................ 81
Introduction.............................................................................................................................................. 81
Scenario 1 – MultiConnect IP as a Modem ............................................................................................. 82
Scenario 2 – Serial Tunneling in Transparent Mode...............................................................................83

Table of Contents
Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A) 4
Chapter 10 – Modem Mode AT Commands, S-Registers, Result Codes............................................. 85
Escape Code Sequence +++ .................................................................................................................. 85
Command Organization........................................................................................................................... 85
Command Types ..................................................................................................................................... 86
Command Detail...................................................................................................................................... 88
FastConnect Commands....................................................................................................................... 114
V.92 Commands (+P and –Q Commands) ........................................................................................... 115
S-Registers............................................................................................................................................ 118
Result Codes ......................................................................................................................................... 127
Chapter 11 – Point-to-Point Protocol .................................................................................................... 132
Introduction............................................................................................................................................ 132
Components of PPP .............................................................................................................................. 132
Prerequisites for Establishing a PPP Session....................................................................................... 132
Adding Users and Passwords............................................................................................................132
Setting Passwords .............................................................................................................................133
Deleting Users ................................................................................................................................... 133
Notes.................................................................................................................................................. 133
PPP Configuration ................................................................................................................................. 133
PPP Interface Related Parameters ....................................................................................................... 134
Enabling/Disabling Authentication .....................................................................................................134
Authentication Type - Protocol...........................................................................................................134
User Name & Password for Remote Peer Authentication ................................................................. 134
IPCP Mode......................................................................................................................................... 134
Show Commands............................................................................................................................... 134
Serial Interface Related Parameters ..................................................................................................... 135
Connect Type.....................................................................................................................................135
Modem Settings - For Modem Connection Only ............................................................................... 135
Chapter 12 – HTTP Server ...................................................................................................................... 136
Introduction............................................................................................................................................ 136
Setup and Configuration........................................................................................................................ 137
Prerequisite for Enabling the HTTP Server .......................................................................................137
Mandatory Setup for HTTP Server .................................................................................................... 137
Configuration Modes ............................................................................................................................. 138
Host Configuration Mode....................................................................................................................... 138
The Parameter List ............................................................................................................................ 138
The Embedded HTML Page ..............................................................................................................140
CGI Scripts.........................................................................................................................................140
File Naming and File Size Conventions............................................................................................. 140
Uploading the Web Page and Parameter List ...................................................................................141
Monitoring and Configuring the Host through a Browser ...................................................................... 142
Technical Information ............................................................................................................................ 142
Parameter Value Display on the Fly ..................................................................................................142
Parameter Value Manipulation from the Browser.............................................................................. 142
Serial Device Parameter Updating Process ......................................................................................142
Chapter 13 – SMTP Client....................................................................................................................... 143
Introduction............................................................................................................................................ 143
Setup and Configuration Prerequisites.................................................................................................. 144
Scenario 1 – Sending a Text Email from the Command Prompt .......................................................... 145
Scenario 2 – Sending a Text Email from the Interactive Mode............................................................. 146
Scenario 3 – Sending a Text Email Using Configuration and Interactive Mode ................................... 147
Scenario 4 – Sending a Text Email Using No Configuration................................................................. 148
Scenario 5 – Sending a Mime Encoded Binary Attachment Using Command Prompt......................... 149
Scenario 6 – Sending a Mime Encoded Binary Attachment Using the Command Prompt................... 150
Scenario 7 – Sending a Mime Encoded Binary Attachment Using Configuration and Interactive Mode151
Scenario 8 – Sending a Mime Encoded Binary Email with Attachment Using Interactive Mode.......... 152

Table of Contents
Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A) 5
Chapter 14 – POP3 Client ....................................................................................................................... 153
Introduction............................................................................................................................................ 153
Setup and Configuration Prerequisites.................................................................................................. 153
Optional Configuration for Deleting Emails from the Server.............................................................. 154
Scenario 1 – Retrieving Emails ............................................................................................................. 155
Scenario 2 – Retrieving the Number of Emails and the Total Email Size ............................................. 155
Scenario 3 – Retrieving the Email List .................................................................................................. 156
Scenario 4 – Retrieving Emails Headers............................................................................................... 156
Scenario 5 – Retrieving First tLines ..................................................................................................... 157
Scenario 6 – Deleting an Email on the Server ...................................................................................... 157
Scenario 7 – Retrieving the Unique Email ID ........................................................................................ 157
Error Messages..................................................................................................................................158
Scenario 8 – Sending a Mime Encoded Binary Email Using Interactive Mode..................................... 159
Chapter 15 – FTP Client.......................................................................................................................... 160
Introduction............................................................................................................................................ 160
FTP Client Features........................................................................................................................... 160
Command to List Directory Contents or to Send/Receive Files ........................................................160
Prerequisites ......................................................................................................................................161
Scenario 1 - Listing Directory Contents................................................................................................. 162
Scenario 2 - Listing Directory Contents................................................................................................. 162
Scenario 3 - Listing Directory Contents................................................................................................. 163
Scenario 4 - Listing Directory Contents................................................................................................. 163
Scenario 5 - Sending a File to the FTP Server ..................................................................................... 164
Scenario 6 - Sending a File to the FTP Server ..................................................................................... 164
Scenario 7 - Sending a File to the FTP Server ..................................................................................... 165
Scenario 8 - Receiving a File from the FTP Server............................................................................... 165
Scenario 9 - Receiving a File from the FTP Server............................................................................... 166
Scenario 10 - Receiving a File from the FTP Server............................................................................. 167
Chapter 16 – SNTP Client ....................................................................................................................... 168
Introduction............................................................................................................................................ 168
Features............................................................................................................................................. 168
Prerequisites.......................................................................................................................................... 168
Scenario 1 - Updating Time from the NTP Server ................................................................................ 170
Scenario 2 - Updating Time from the NTP Server ................................................................................ 170
Appendix A – Flash Upgrade ................................................................................................................. 171
Introduction............................................................................................................................................ 171
Prerequisites.......................................................................................................................................... 171
Prerequisite 1 – Required Tool (TFTP Client) ................................................................................... 171
Prerequisite 2 – Serial Port Configuration .........................................................................................172
Prerequisite 3 – Enabling TFTP Server............................................................................................. 172
Serial Flash Upgrade Scenario ............................................................................................................. 172
Appendix B – Regulatory Information .................................................................................................. 173
Appendix C – Warranty and Service ..................................................................................................... 174
Multi-Tech Warranty Statement .........................................................................................................174
Repair Procedures for U.S. and Canadian Customers...................................................................... 174
Repair Procedures for International Customers (Outside U.S.A. and Canada) ................................174
Repair Procedures for International Distributors ............................................................................... 175
Replacement Parts ............................................................................................................................175
Index ......................................................................................................................................................... 176

Chapter 1 – Product Description and Specifications
Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A) 6
Chapter 1 – Product Description &
Specifications
Product Description
The MultiConnect serial-to-serial adapter enables installed serial devices to connect to the Internet for
remote monitoring, control and configuration.
Internet-Enable Any Device. The MultiConnect adapter provides the powerful ability to IP-enable serial
devices allowing more options for data acquisition, device management, and industrial control than would
otherwise be available.
Simply install the MultiConnect between a serial device and an analog, ISDN, or wireless modem to send
and receive data over the Internet. It can also serve as a single Web page in response to a Web browser
request.
Reduces Development Time. MultiConnect can make your existing and next generation serial device
IP-ready without requiring hardware changes to its design. MultiConnect actually provides faster time-to-
market because it relieves the burden and expense of writing and maintaining Internet applications. The
complete, ready-to-integrate MultiConnect adapter allows you to enhance your product while you focus on
developing its core features.
Management and Configuration. MultiConnect has several means of management and configuration
built into the design. It supports remote configuration, which means you can have central site setup and
control of the remote adapters via the command line interface or telnet.
Applications
The MultiConnect adapters will IP-enable any device to provide remote monitoring, control and
configuration of any system. The solution is ideal for the following applications:
•Appliances
•ATM terminals
•Credit card and check verification systems
•Data collection
•Gas pumps
•Industrial and medical remote monitoring systems
•Point-of-sale terminals
•Remote diagnostics
•Remote metering
•Security systems
•Ticketing machines
•Vending/gaming machines
•And more…..

Chapter 1 – Product Description and Specifications
Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A) 7
Types of Adapters Available
Product Adapter Description Region
MTS2SA-T Serial-to-Serial + IP (External Power) Global
MTS2SA-T-R Serial-to-Serial + IP (RS-232 Power) Global
Note: The RS-232–powered adapters are powered through the DSR pin of the
RS-232 cable.
Package Contents
•One MultiConnect Adapter
•One universal power supply with power cord included with the externally powered adapters
•One RS-232 cable included with the RS-232 Serial-to-Serial Adapter
•Two mounting brackets
•Four adhesive-backed rubber feet (table-top mounting)
•One Quick Start Guide
•One MultiConnect CD
Handling Precautions
All devices must be handled with certain precautions to avoid damage due to the accumulation of static
charge. Although input protection circuitry has been incorporated into the devices to minimize the effect of
this static buildup, proper precautions should be taken to avoid exposure to electrostatic discharge during
handling and mounting.

Chapter 1 – Product Description and Specifications
Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A) 8
Specifications
Category Description
Memory 8 MEG
Flash Memory 2 MEG
Protocols Supported ARP, DHCP, FTP, HTTP, ICMP, IP, POP3, PPP, SMTP, TCP, Telnet,
TFTP, and UDP
Serial Interface Standard DCE serial
Data Formats Serial, binary, asynchronous
Data Rates 300; 1200; 2400; 4800; 9600; 19200; 38400; 57600; 115200; 230400 bps
Flow Control RTS/CTS (hardware)
Management Serial; Telnet
Security Username and password authentication using local database
System Software Flash ROM standard: downloadable from a TCP/IP host (TFTP) or
Xmodem via Serial
LEDs ACT (Activity) and STS (Status)
Ethernet IEEE 802.3
Power Requirements With External Power (MTS2SA-T) Power Consumption
@ 9V DC: Typical 240mA Maximum 250mA
With RS-232 Power (MTS2SA-T-R) Power Consumption
@ 5V DC: Typical 95mA Maximum 105mA
@ 10V DC: Typical 50mA Maximum 60mA
@ 15V DC: Typical 35mA Maximum 45mA
@ 20V DC: Typical 28mA Maximum 38mA
@ 25V DC: Typical 24mA Maximum 34mA
Operating Temperature 32°to +120°F (0°to 50°C); humidity range 25-85% (non-condensing)
Storage Temperature -40°C to +85°C
Physical Dimensions 3.5" w x 2.1" h x 0.98" d; 3.4 oz.
8.8 cm x 5.3 cm x 6 cm; 96 g
Certifications Safety Certifications:
UL60950
cUL60950
EN60950
ACA TS001 / AS 3260
EMC Safety Approvals:
FCC Part 15 Class A
EN55022
EN55024
CE Marked

Chapter 1 – Product Description and Specifications
Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A) 9
Category Description
Intelligent Features High performance 10/100BaseT Ethernet bridge
Half duplex or full duplex support on the WAN interface
256 frame buffer
Stores 10,000 MAC addresses
Automatically learns MAC addresses
Serial interface supports DTE speeds to 230K bps
External and RS-232 power options
High performance processor runs ARP, DHCP, FTP, HTTP, ICMP, IP,
POP3, PPP, SMTP, SNMP, SNMP, TCP, Telnet, TFTP, UDP protocols
Command line interface
Flash memory to update firmware with the latest enhancements
Flexible IP protocol stack
Compact, rugged industrial chassis design
Desktop or panel mounting
Two-year warranty
Software Features Internet Applications
DHCP Client:
Request IP address for Ethernet Interfaces
Telnet Server:
Command Line Configuration
Auto Dial-out Feature
Command line via custom port (other than standard port 23)
Telnet Client:
Connect to remote Telnet Server
Serial Auto Dial-in Feature
Terminal Server:
Network to Serial Connectivity
Serial to Network Connectivity
TFTP Server:
Flash Upgrade
SMTP Client:
The email client embedded in the MultiConnect sends email to the
configured recipients.
POP3 Client:
The email client embedded in the MultiConnect receives email
from the POP3 Server. This feature is useful for field upgrades.
Firmware upgrades can be sent as attachments.
HTTP Server:
To host Web pages on behalf of the serial device for monitoring
and configuration of the serial device.
Functional Features
Command Line Configuration over Serial or Ethernet
Serial - TTY
Ethernet - Telnet
Username and Password Authentication Using Local Database
The Username and Password can be created using commands.
The User database authenticates the Users before access to
command mode of the MultiConnect adapter is enabled.
Remote Transparent Bridging
Ethernet to Serial Bridging
Point-to-Point Protocol (PPP)
Negotiations Bridging Control Protocol
- 802.3 MAC Type
CCP Compression

Chapter 1 – Product Description and Specifications
Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A) 10
LED Indicators
Name Description
ACT Activity – Lit when data is being transmitted or received.
STS Status – Blinks to indicate that the unit is functioning.
RS-232 9-Pin Connector Pinout
Pin 1 Pin 5
Pin 6 Pin 9
Pins for the Serial-to-Serial Adapter when Power Is Supplied Externally
Pin Description
1 DCD
2 RX Data
3 TX Data
4 DTR
5 Ground
6 DSR
7 RTS
8 CTS
9 RI
Pins for the Serial-to-Serial Adapter when Power Is Supplied Through the RS-232 Pin
Pin Description
1 DCD
2 RX Data
3 TX Data
4 DTR
5 Ground
6 Power
7 RTS
8 CTS
9 RI

Chapter 2 – Installation
Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A) 11
Chapter 2 – Installation
Attaching the MultiConnect to a Fixed
Location
The MultiConnect adapter is design to be used on the desktop or to be panel-mounted. To attach the
bracket for panel-mounting, following these steps:
1. Typically, the MultiConnect adapter is mounted against a flat surface with two mounting screws. Drill
the mounting holes at the desired location. The mounting holes must separated by 4 -7/16 inches
center-to-center.
2. To attach the brackets to the MultiConnect, slide the mounting brackets into the corresponding slots
on the back of the MultiConnect chassis.
3. Attach the adapter to the surface with two screws.

Chapter 2 – Installation
Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A) 12
Serial-to-Serial Adapter Installation
Connecting the Cables
Serial-to-Serial Adapter
Front
Back shown with External Power Option
1. Plug one end of the RS-232 cable into the front of the
Serial-to-Serial adapter.
Plug the other end into the RS-232 connector on the modem
that is setup with an Internet connection.
2. Plug one end of the other RS-232 cable into the back of the
Serial-to-Serial adapter.
Plug the other end into the RS-232 connector on the serial
device you want connected to the Internet.

Chapter 2 – Installation
Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A) 13
Connecting the Power
The adapters are powered in one of two ways:
•Through the DSR Pin of the RS-232 Cable
Adapters powered this way are shipped with an RS-232 cable that has a power pin instead of a
DSR pin.
•Through an External Power Supply
Adapters powered this way are shipped with a universal power supply and its accompanying power
cord and an RS-232 cable that has a DSR pin instead of a power pin.
Connecting the External Power
1. Plug the power supply cable with attached transformer block into the power connector on the
back of the MultiConnect adapter.
2. Plug the AC cord receptacle into the transformer block. Plug the other end into a power outlet.
Plug Power Supply Cable with
Transformer into the Back of
the Adapter
Plug AC Cord into
Transformer Block
and Outlet
One end of
RS-232
Shown
Here

Chapter 3 – Managing and Configuring the MultiConnect Adapter
Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A) 14
Chapter 3 – Managing and
Configuring the MultiConnect
Adapter
Two Ways to Login
Login Using TTY
•Use TTY to configure your MultiConnect IP for the first time. Configure the host serial port
using the defaults listed below:
Baud: 115.2K
Data: 8
Parity: N
Stop: 1
Flow-Control: None
•Press the Enter key three times to get to the Login prompt or send three carriage returns.
•At the Login prompt, type admin.
At the Password prompt, type admin.
Important: The user name and password are case sensitive. They must be typed in lowercase
letters.
Login Using Telnet through the PPP Interface
•Open the PPP interface on the modem port.
•Upon successful establishment of a Telnet session, the MultiConnect IP displays the Login
prompt.
At the Login prompt, type admin.
At the Password prompt, type admin.
•After a successful login, the MultiConnect IP enters Command Mode. In Command Mode,
the MultiConnect IP can be configured and managed using the Command Line Interface
(CLI) command set.
About Command Mode and Data Mode
•In Command Mode, a # sign designates the prompt. If you type the word Help at the command
prompt, a complete list of commands displays.
•If you type the word Usage at the command prompt, a list of the command semantics displays.
•In Data Mode, the # sign is not displayed.
•To leave Command Mode, exit your terminal or Telnet session or type the word Exit at the
command prompt.
Note: See the Restore command and IP Escape String command.

Chapter 4 – Command Line Interface (CLI)
Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A) 15
Chapter 4 – Command Line Interface
(CLI)
The MultiConnect commands are grouped based on the functionality.
•General Setup Commands
•IP Setup Commands
•Serial Setup Commands
•PPP Setup Commands
•HTTP Setup Commands
•SMTP Setup Commands
•POP3 Setup Commands
•FTP Client Setup Commands
•SNTP Client Setup Commands
General Notes
•Required command parameters are indicated between < >.
•Optional command parameters are indicated between [ ].
•Parameter choices are delineated by /.
•Upon successful execution of a command, the “OK” string is echoed to the client.
•When an unsuccessful command is executed, an appropriate error message is displayed
followed by an "ERROR" string.
•All the commands are case sensitive (they must be typed in lower case).
•PPP is enabled on the modem interface S1.
•All serial-related applications such as dial-in and dial-out are with respect to the serial
interface S0.
•The PPP interface is the modem interface S1.

Chapter 4 – Command Line Interface (CLI)
Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A) 16
General Commands – Setup
General Setup Commands
General setup of a MultiConnect IP is port-independent (physical S0, S1 etc.). The following command
set is used to set the global configuration of MultiConnect IP.
Command Syntax dialout serial s0
Description Manual Telnet dialout (Internet-to-serial connectivity).
Invoked from the command shell.
Default Value NA
Success OK
Error 1. Too few arguments
“Usage: dialout serial <serial port>
Type ‘dialout ?’ for more information”
2. Invalid argument
Possible argument(s) are: Serial
1. When invoked from Serial Shell
This command is not supported through serial dial-in
Command Syntax Exit
Description Exits the command parser, unlocks the configurations, terminates session.
Default Value NA
Success OK
Command Syntax Help
Description Provides the first level of commands in MultiConnect IP.
Default Value NA
Success OK
Command Syntax restore default-config
Description Restores the factory defaults.
Note: All previous configurations will be lost upon invoking this command.
The changes are made permanent only if save config is invoked.
Default Value NA
Success OK
Error 1. Too few arguments
”Possible arguments are default-config and session
2. Invalid argument
Invalid argument “invalid string”
Valid arguments are default-config and session
Command Syntax restore session
Description On Telnet dialout, the control is transferred to the command parser passing
the escape sequence “+++ inet”. Invoking “restore session” would resume
the Telnet dialout exiting the command parser.
Default Value NA
Success OK
Error 1. Too few arguments
Possible arguments are default-config and session
2. ERROR: Session not opened

Chapter 4 – Command Line Interface (CLI)
Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A) 17
General Commands – Setup
Command Syntax reset modem
Description At will, reset the built-in modem.
Default Value NA
Success OK
Error 1. Too few arguments Possible argument(s) are modem
Command Syntax save
Description Command to Save the configuration to the flash and reboot.
Default Value NA
Success OK
Command Syntax telnet <dial-ip-addr> [<port>]
Description Manual serial dial-in (device port to modem port connectivity).
Invoked from the command shell.
Default Value NA
Success OK
Error 1. Too few arguments
2. Invalid IP address/Port
“(Error: hostp = “configured host“. Error: hostp=“configured IP address“
3. When invoked from Command shell connected through Telnet
This command is not supported through Telnet
Command Syntax Usage
Description Provides the command semantics for all the commands.
Default Value NA
Success OK
Command Syntax user add <user-name> [<passwd>]
Description Add the user name and the password to the group.
Notes: Default Groups: admin, users
Default Users: admin, ipmodule
Only Admin can configure the MultiConnect IP
Default Value NA
Success OK
Error 1. Too few arguments
“Too few arguments. Possible value(s) are username followed by
password“
2. Unable to add the user name: “user ‘username‘ exists“
Command Syntax user delete <user-name>
Description Delete the user name from the group.
Default Value NA
Success OK
Error 1. Too few arguments
“Too few arguments. Possible value(s) are username followed by
password“
2. Unable to delete the user name: “user ‘username‘ does not exist“

Chapter 4 – Command Line Interface (CLI)
Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A) 18
General Commands – Setup
Command Syntax user password <username> <new password>
Description Change the password for a user.
Default Value NA
Success OK
Error 1. Too few arguments
“Too few arguments. Possible value(s) are username followed by
password”
2. Unable to change the password
“Password does not match
Unable to change user <username> password”
Command Syntax set operation-mode <modem/ipmodule>
Description modem - In the modem mode, the target functions like a modem
ipmodule - In the ipmodule mode, all the functional features of
MultiConnect IP can be achieved.
Default Value Ipmodule
Success OK
Error 1. Too few arguments
"Too few arguments. Possible argument(s) are modem and ipmodule
2. Invalid string
"Invalid argument "string"
Valid argument(s) are modem and ipmodule
Command Syntax set boot-messages <enable/disable>
Description enable - Prints the boot-messages during module boot-up.
disable - Suppresses the boot-messages during module boot-up.
Default Value Enable
Success OK
Error 1. Too few arguments
"Too few arguments. Possible argument(s) are disable and enable
2. Invalid string
"Invalid argument "string"
Valid argument(s) are disable and enable
Command Syntax set date <DD/MM/YYYY>
Description Sets the system date.
Default Value Jan 1 1970
Success OK
Error 1. Too few arguments
Usage: set date DD/MM/YYYY
Type 'set date ?' for more information
Error: Date in DD/MM/YYYY format
Too few arguments. Possible argument(s) are
ip ppp date
serial login time

Chapter 4 – Command Line Interface (CLI)
Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A) 19
General Commands – Setup
Command Syntax set login
Description Prompts the Login for the command shell when enabled, and doesn't when
disabled.
Default Value Enable
Success OK
Error 1. Too few arguments
"Usage: set login <enable/disable>
Type 'set login ?' for more information"
2. Invalid string
"error: set login <enable/disable>"
Command Syntax set login auto-dialout-login <enable/disable>
Description Enables/Disables authentication for Telnet auto-dialout.
Default Value Disable
Success OK
Error 1. Too few arguments
"Usage: set login auto-dialout-login <enable/disable>
Type 'set login auto-dialout-login ?' for more information"
2. Invalid string
"error: set login auto-dialout-login <enable/disable>"
Command Syntax set time <HH:MM:SS>
Description Sets the system time.
Default Value 00:00:00
Success OK
Error 1. Too few arguments
Usage: set date HH:MM:SS
Type 'set date ?' for more information
Error: Time in HH:MM:SS format
Too few arguments. Possible argument(s) are
ip login
serial date
ppp time
Command Syntax set watchdog <enable/disable>
Description Enables/Disables the watchdog timer.
The timer value is set to 6.5 seconds. This is the upper threshold value.
Note: Watchdog timer comes into effect only after reboot. Hence,
invoking this command calls for a reboot on save.
Default Value Enable
Success OK
Error 1. Too few arguments
"Usage: set watchdog <enable/disable>
Type 'set watchdog <enable/disable> ?' for more information"
2. Invalid string
"error: set watchdog <enable/disable>"

Chapter 4 – Command Line Interface (CLI)
Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A) 20
General Commands – Setup
Command Syntax show buildrun
Description Command Line Configuration - History.
Upon invoking any command, either through Telnet or Serial TTY, the
command is added to the buildrun file. This is very useful in case of
version updates.
Default Value NA
Success OK
Error 1. Too few arguments
"Too few arguments. Possible argument(s) are
serial date statistics users
buildrun ip sys-info
configuration ppp time
2. Invalid argument
Invalid argument "string". Valid arguments are
serial date statistics users
buildrun ip sys-info
configuration ppp time
General Commands – Show
Command Syntax show configuration
Description Displays the MultiConnect IP configuration.
Default Value NA
Success OK
Error 1. Too few arguments
“Too few arguments. Possible argument(s) are:
serial ppp sys-info device-parameter
configuration recv-mail time
date http users
buildrun statistics send-mail
2. Invalid argument
Valid arguments are:
serial ppp sys-info device-parameter
configuration recv-mail time
date http users
buildrun statistics send-mail
Command Syntax show date
Description Shows the system date.
Default Value NA
Success OK
Error 1. Too few arguments
Too few arguments. Possible argument(s) are:
ip statistics users
configuration ppp sys-info
date serial time
2. Invalid argument
Invalid argument "Invalid string". Valid arguments are
ip statistics users
configuration ppp sys-info
date serial time