
U421EV Box Includes
FortiAP U421EV QuickStart Guide
Standard Ceiling Bracket
(2 Sizes)
Recessed Ceiling Bracket
(2 Sizes)

Installation
IMPORTANT: Supported only from System Director 8.2 or later.
The unit can be mounted on a ceiling using the provided ceiling mounting bracket.
To attach the unit to a ceiling using the ceiling mount bracket:
1. Attach the ceiling mount bracket to the bottom cover of the FortiAP unit by sliding the ceiling the
mount bracket from the left to the right onto the FortiAP Unit.
If extra space is required to accommodate drop ceiling tiles, use the taller ceiling mount bracket.

2. Select an appropriate location, hold the device against the ceiling t-rail, and push the FortiAP unit
onto the ceiling until it snaps into place.
The unit can be removed from the bracket by pressing on the bracket tab and sliding the device out.
Note: Four ceiling mount brackets are included; both standard and recessed ceiling mount
brackets come in sizes: 1.43cm (9/16in) and 2.38cm (15/16in).
To protect your device from unauthorized removal, use the Kensington™ Security Slot to attach a
cable lock (not included).

Antennas (Applicable for U423EV only)
The FortiAP unit provides dual concurrent radio signals. Use the 2.4GHz antennas to access Radio 0
(802.11 b/g/n 288Mbps) signals, and the 5GHz antennas to access Radio 1 (802.11 a/n/ac 1733Mbps)
signals. To use both radio frequencies concurrently, use all eight WiFi antennas.
Installing the WiFi Antennas
1. Insert the antenna base firmly into the appropriate antenna mount.
2. Securely hand tighten the fastening collar
3. Repeat for the remaining antennas

AP Mounting and
Antenna Position
All 5.0GHz antennas are vertically oriented and the 2.4GHz antennas
are bent at 45 degrees.
FAP U423EV

Ports
USB Port (USB A)
Ethernet Port (RJ-45)
Gigabit Ethernet port with
Power over Ethernet (PoE)
Powered Device (PD) support
Use ONLY: 802.3at
Console Port (RJ-45)
Optional management computer
connection
Provides access to the Command-Line
Interface (CLI)
Power
12V, 3A