Digi 90000583_A manual E c i a l F e a t u r e s M o d e m E m u l a t i o n, Modem Emulation

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Chapter 7

S p e c i a l F e a t u r e s : M o d e m E m u l a t i o n

 

 

Modem Emulation

The following Digi TS Family products include Modem emulation:

Digi One TS

Digi One TS Wireless

PortServer TS 2/4 MEI

PortServer TS 2/4 Wireless

PortServer TS 1/3 + Modem

Note: Port one on the PortServer TS 1/3 + Modem is an actual embedded modem.

The remaining ports are capable of emulating a modem.

PortServer 8/16

Modem emulation enables a system administrator to configure a networked Digi device to act as a modem. The Digi device emulates modem responses to a serial device and seamlessly sends and receives data over an Ethernet network instead of a PSTN (Public Switched Telephone Network). The advantage for a user is the ability to retain legacy software applications without modification and use a less expensive Ethernet network in place of public telephone lines.

To use a Digi device for modem emulation, do the following:

Use a cable with the correct wiring pinouts (see "Modem Emulation Cable Signals" on page 44)

Configure the serial ports and device type with the Web Interface serial port profile - Modem Emulation

Note: Before AT commands are accepted, DSR must go high on the Digi device-

Common User Scenarios

The Digi device in modem emulation mode allows for the easy replacement of modems in almost any environment where there is a LAN or WAN.

In Diagram A, the Digi One TS replaces a modem connected to a workstation running an application. The Digi One TS allows for the use of software applications without modification by responding to all the AT commands configured in the workstation application. The Digi One TS

Chapter 7 Special Features: Modem Emulation

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Contents Digi TS Family 90000583A Chapter Configuration Configuring the IP AddressChapter Introduction Special Features Modem Emulation Setting Up RealPortSpecial Features Wireless Special Features Embedded ModemConfiguration Management Special Features Power Over the Serial PortsSpecial Features IA Industrial Automation Special Features SnmpDigi Contact Information Other Documents in the Library About This GuideSetup Overview Supported Devices About Configuration MethodsFeature Products Availability Configuration Details Accessing the Configuration from the Web InterfaceQuick Find Table DNS Introduction N f i g u r i n g t h e I P a d d r e s s Options for Configuring the IP Address and MaskConfiguring the IP Address Using ARP-Ping Configuring the IP Address with Digi Port Authority-RemoteAccessing the Digi Device Configuring an IP Address using Dhcp and RarpButton in the upper right corner is also available N f i g u r a t i o n Network SettingsProcedure for Using a Name Server Configuring the Serial Ports Service Base Socket Network PortConfiguration Port Profiles TCP Sockets Serial Bridging Printer Industrial Automation Modem Emulation Power Management Custom Feature Description User ConfigurationSnmp SSH Security ConfigurationSystem Configuration Click Outgoing Connections About Autoconnection Configuring a Port for AutoconnectionConfiguring a User for Autoconnection About RealPort T t i n g U p R e a l P o r tSetting Up RealPort Select Discover Digi Device from the CD Configuration ConsiderationsClick Network Wireless LAN Special Features Wireless Special Features Wireless Embedded Modem E c i a l F e a t u r e s E m b e d d e d M o d e mSpecial Features Embedded Modem Modem Emulation E c i a l F e a t u r e s M o d e m E m u l a t i o nSerial Device Digi Device Modem Emulation Cable SignalsScenarios for Modem Emulation Originating, Answering, and Disconnecting CallsATH Modem Emulation AT Command Set Function ResultCode Function ResultATP Mand state without disconnecting There is no Nvram support currently AT+MS Ascii Registers Function Range Units Saved DefaultRegister Function Range Units Saved Default Register Function Range Units Saved Default 17 11h =XON/XOFF &K4 Result Codes Short Long Form Special Features Modem Emulation Configuring RI Power Serial Power FeatureConfiguring DTR Power Serial Power Table OUT Special Features IA Industrial Automation Configuring Industrial Automation with ModbusPage About Snmp and the Device Server Agent E c i a l F e a t u r e s S N M PMIB Configuration Procedure Web InterfaceClick Backup/Restore Restore Copying the Configuration to and from a Remote HostUpgrading the Firmware Resetting Configuration to Defaults Color State Indicates Interpreting the LEDsDevice EIA 232/422/485 Switch Settings Function Safety StatementsRack Mounting Installation PortServer TS 16 Rack and DC Rack External Wiring SpecificationsMechanical PortServer TS PortServer TS 2/4 Mechanical Regulatory Notices Digi One TS, PortServer TS 2/4, PortServer TS 2/4 MEI Certifications Maximum Permissible Exposure Wireless only Digi Contacts Digi Contact Information