### Configuring Incoming-Only Modem Connections

This section describes how to configure incoming-only modem connections, that is, connections that are initiated by a device across the telephone network.

#### Starting Point

This procedure assumes that you

- Know the operating parameters required by the modem. If you do not, see the modem documentation.
- Have or will correctly cable the connection between the Digi device's serial ports and modems.
- Logged in as the administrator

#### Procedure

1. Supply a set ports command that specifies the following:
   - The serial port to which this command applies (on the range field)
   - dev=min
2. Supply a set line command that specifies the following:

- The serial port to which this command applies (on the range field)
- The line speed of the connection between the modem and the serial port (on the baud field)

3. Supply a set flow command that defines the flow control scheme required by the modem.

#### Example

In this example, ports 4 and 5 are set up for incoming modem connections using RTS/CTS flow control.

`set ports range=4-5 dev=min
set line range=4-5 baud=115200
set flow range=4-5 ixon=off ixoff=off cts=on rts=on`