Serial Server; Introduction; Working Modes - Raisecom Gazelle S1503i User Manual

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Raisecom

Gazelle S1503i (A) User Manual

Serial server

This chapter describes features of the serial server of the Gazelle S1503i, including the

following sections:



The serial server, also known as a serial-interface network access server or interface redirector,

is a device that transfers data between a serial interface (COM interface) and an Ethernet

Local Area Network (LAN). This makes it possible to use Ethernet in place of serial cables,

allowing the PC to directly access serial devices in the network.

The serial server transmits data flow on the serial interface based on the TCP/IP. It can be

connected to multiple serial devices to select and process the serial data flow. It transfers the

serial data in support of the RS-485 protocol to IP interface data, and then performs IP

management and data access. In this case, you can use the general IP channel to transmit

traditional serial data without discarding the serial devices, thus, enhancing the utilization rate

of the device as well as saving costs.

Serial servers can be used with all types of serial devices and peripherals, including printers,

scanners, data collection terminals, display devices, modems, automatic equipment,

security/alarm systems, and climate-control systems.

The serial server works in the following modes.

TCP Server mode

In TCP Server mode, the TCP interface of the local device is in listening status and waits

other terminal hosts or remote devices working in TCP Client mode to connect the local

interface. After connection is established, the serial server will start sending/receiving data.

Introduction

Working modes

Typical applications

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4 Serial server

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