ATEN ALTUSEN PN9108U User Manual download pdf (Page 36)

SN3101 User Manual

TCP Server / TCP Client

TCP (Transmission Control Protocol) provides a reliable transport layer for

transmitting serial data over the TCP protocol via socket programming.

TCP Server (RAW TCP)

In TCP Server (RAW TCP) mode, data transmission is bidirectional. In this

mode, the host computer initiates contact with the SN3101 and requests a

connection to its serial port.

Once the connection is established, the host receives data from the serial

device. From this point on, data can be transmitted between the host and the

device in both directions. 128-bit SSL data encryption is supported in this

operating mode.

The SN3101 supports simultaneous connections from up to 16 host computers

in this mode, allowing multiple computers to communicate with the serial

device at the same time.

Note: 1. Be sure that the Socket entry specified on the Network page

corresponds to the port that the device listens on. 5001 is the

SN3101’s default setting. (See Network, page 16, and Socket,

page 17.)

2. TCP Server mode supports the Direct Access function (see Direct

Access, page 46, for details).

TCP Client

In TCP Client mode, when serial data comes into the SN3101’s serial port, the

SN3101 initiates contact with the host computer and begins sending serial data

to the to the host. The SN3101 can send data to up to 16 host computers

simultaneously, and supports 128-bit SSL data encryption in this operating

mode.

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ATEN ALTUSEN PN9108U User Manual Page 36