Tehnical Support

Modem Emulation

Overview

Modem emulation allows a user to easily configure a networked SENA Terminal Server as a modem. The SENA product emulates modem responses to a serial device in the field and seamlessly sends and receives data over an Ethernet network. Embedded, pre-designed devices can treat the SENA device like a modem, but allow it to "dial up" an IP address instead of a phone number.

Furthermore, SENA's high-end product lines, PS110, PS410, PS810, SS100, STS400, STS800 and STS1600 supports Modem Emulation mode over SSL encryption. This unique feature provides secure serial modem emulation, accepting AT commands in an encrypted format to connect and communicate with Serial devices.

A key benefit is the ability to retain legacy software applications and devices without reprogramming devices in the field. Modem emulation also promotes cost savings by utilizing an IP network instead of a PSTN. Modem emulation can be used to replace the modem at both ends of the connection or on just one end using IP sockets.

Common serial devices used with modem emulation

Common serial devices used with modem emulation include tank gauges, gaming equipment, credit card machines, card swipe readers, traffic control equipment, vending machines, Intelligent Electronic Devices (IEDs), and remote controllers.

Features

• Configure SENA terminal server to act as a modem
• Allows modem-based legacy devices and software to communicate over TCP/IP

Benefits

• Save money-using IP networking instead of PSTN.
• Faster, more cost-effective data transfer.

Terminal Server Products with Modem Emulation Feature

• 16-Port Terminal Servers
  • STS1600
• 8-Port Terminal Servers
  • STS800
  • PS810
• 4-Port Terminal Servers
  • STS400
  • PS410
• 1-Port Terminal Servers
  • PS110
  • SS100

For detailed information about this feature, contact us at