Digi 21, 21c, 22c, 2c, 412, 416, Edgeport/1, Edgeport/2, Edgeport/21, Edgeport/21c, Edgeport/22c, Edgeport/2c, Edgeport/412, Edgeport/416, Edgeport/42, Edgeport/421, Edgeport/8rr, Edgeport/4, Edgeport/8, Edgeport/8r Edgeport/21, Edgeport/42, Edgeport/421

Edgeport Installation Guide (90000403 Rev. D) – Page 3

Edgeport/21, Edgeport/42, Edgeport/421

The Edgeport/21, Edgeport/42, and Edgeport/421 are multi-connector converters for mobile and high-end

workstation users who need to attach multiple serial (RS-232) ports, a printer port, and USB peripherals to a single

USB upstream connector.

Type A Type B

The Edgeport/42 and Edgeport/421 operate as self-powered hubs, requiring a power supply to function. (For more

information about hubs, see “Understanding Hubs” on page 18.) Connect one end of the power supply into the back

of your Edgeport and the other end into an AC outlet.*

The Edgeport/21 derives its power from the host machine through the USB cable, and thus, does not require a power

supply.

To connect your Edgeport to a PC or Hub, plug the Type A end of the USB cable into the USB port located in the

back of your PC or into an available USB port on a standard hub or into a Digi Hubport. Plug the Type B end of the

USB cable into the back of the Edgeport.

To connect a USB device to your Edgeport, plug the Type A end of the USB cable into one of the Edgeport/421 or

Edgeport/42 USB Type A slots and the Type B end of the USB cable into the device.

* Power to the Edgeport/421 may be supplied by a UL Listed Direct Plug-In Power Unit or Information Technology Equipment

Rated Power Unit rated 5 V dc, at least 2.5 A if used in the U.S. and Canada or a power supply with similar rating and approved

by your local safety code if it is used elsewhere. For polarity, see diagram to the right.

After plugging Edgeport into your PC, the Update Device Driver Wizard for installing the generic USB hub may

appear. If so, follow the recommended on screen instructions. Otherwise, Windows 95 will bring up the Update

Device Driver Wizard for installing the Edgeport drivers, in which case you may proceed to “Edgeport Driver

Installation” on page 8.

After following the instructions described in “Cabling Edgeport” on this page, hub installation will be complete and

you may continue with “Edgeport Driver Installation” on page 8.

No separate process is required. Go to “Edgeport Driver Installation” on page 8.

Digi Edgeport/21, Edgeport/42, Edgeport/421