User`s guide

Configure Physical Serial Ports

Chapter 5 Configure Ports 81

When automatic detection for connected devices begins

In factory default mode, if automatic detection is set to Active, the Digi

Passport unit waits 5 minutes (the Initial delay setting), then probes the ports

for which automatic detection is enabled using the specified port automatic

detection list. After that, it waits an interval before performing the next probe.

This interval is either 1440 minutes (the default value of the Recheck interval

setting; this value can be changed) or until a specified start time occurs (the

Start time setting).

Note that the value for the Initial delay must be less than that for the

Recheck interval.

Option to ignore the status of DSR signal. If you selected None for Detect

device via option, Passport will start ADR regardless of the status of the DSR

signal.

Automatic detection can also be started manually by clicking the Start Now

button at the bottom of Automatic detection page. Automatic detection is

then performed according to the selected Device detection method.

There are timing considerations when configuring automatic detection and

connecting devices to the Digi Passport unit. Specifically, if automatic

detection is set to Active and turned on after a device is physically plugged in

to a serial port on the Digi Passport unit, automatic detection will not attempt to

probe the port until after the time specified by the Recheck Interval elapses.

Therefore, either:

• Configure automatic detection before plugging devices into the Digi

Passport unit

• Unplug devices, configure automatic detection, and plug in the devices

again.