Lantronix UDS2100 manual Modem Mode

7: Setup Mode: Channel Configuration

e) Modem Mode

In Modem (Emulation) Mode, the unit presents a modem interface to the attached serial device. It accepts AT-style modem commands and handles the modem signals correctly.

Normally, there is a modem connected to a local PC and a modem connected to a remote machine. A user must dial from the local PC to the remote machine, accumulating phone charges for each connection. Modem Mode allows you to replace modems with UDS2100s, and to use an Ethernet connection instead of a phone call. By not having to change communications applications, you avoid potentially expensive phone calls.

To select Modem Mode, set the Connect Mode to C6 (no echo), D6 (echo with full verbose), D7 (echo with numeric response), CF (modem responses only, numeric response), or CE (modem responses only, full verbose).

Note: If the unit is in Modem Mode, and the serial port is idle, the unit can still accept network TCP connections to the serial port if Connect Mode is set to C6 (no echo), D6 (echo with full verbose), D7 (echo with numeric response, CF (modem responses only, numeric response), or CE (modem responses only, full verbose).

Without Echo	In Modem Mode, echo refers to the echo of all of the characters
	entered in command mode; it does not mean to echo data that
	is transferred. Quiet Mode (without echo) refers to the modem
	not sending an answer to the commands received (or
	displaying what was typed).
Data Echo & Modem	Full Verbose: The unit echoes modem commands and
Response	responds to a command with a message string shown in the
	table below.
	Numeric Response: The unit echoes modem commands and
	responds to a command with a numeric response.
Modem Responses	Full Verbose: The unit does not echo modem commands and
Only	responds to a command with a message string shown in the
	table below.
	Numeric Response: The unit does not echo modem commands
	and responds to a command with a numeric response.

UDS2100 User Guide 48