Digi CM User's Guide download pdf (Page 56)

Supported Protocols

56 Chapter 5

Supported Protocols

. In configuring a serial port, you have three protocol options. The three

protocols available are: RawTCP, SSH, and Telnet. Choose SSH as the

protocol when logging in from an SSH client program to access a port. Choose

RawTCP when connecting directly to a TCP socket. Choose Telnet when

logging in from a Telnet client program and accessing the ports. Use the Host

mode configuration page in the web interface to select the correct protocol.

Serial Port Parameters

In attaching a serial device to the Digi CM unit’s serial port, the port

parameters must match. The serial ports by default are enabled, meaning you

have full access to the port. To configure the port parameters for the Digi CM

unit, do the following:

1. Access the web interface.

2. Under the Serial Port heading, Click Configuration.

3. Choose All or an Individual port > Serial port parameters.

4. Fill in the serial port parameters. The following are the defaults: bps=9600,

data bits=8, parity=none, stop bits=1, flow control=none, and DTR

behavior=High when open.

5. Click Save & apply

DTR Behavior

DTR can be set on the serial port to one of three settings: always high, always

low, or High when open. Setting the DTR to High when open keeps the DTR

high if a TCP connection is established. The DTR setting cannot be set by you

when the host mode is configured for dial-in modem or dial-in terminal server

mode.

Inter-character Timeout

This setting is only available when the host mode protocol is set for RawTCP.

The parameter sets the time value for the Digi CM unit to transfer data stored

the Digi CM unit

supports three

protocol options:

SSH, Raw TCP, and

Telnet.

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Digi CM User's Guide Page 56