User's Manual

ES2440 Hardware Guide: Overview
2
1.2 The ES2440
The ES2440 High-Capacity Infrastructure Mesh Point is a
full-featured Fortress network device, providing strong data
encryption and Multi-factor Authentication™, including native
RADIUS authentication, to users and devices on the network it
secures.
Two ES2440 models are each equipped with four radios:
NOTE: Although
optional 4.4 GHz
radios are covered
throughout this guide,
as of the version 5.4.1 re-
lease, they were not yet
supported in Mesh
Point software. Consult
your Fortress represen-
tative about future
4.4 GHz radio support
on the ES2440.
 Radio 1 is a 400 mW (milliwatt, peak power) dual-band
802.11a/b/g/n radio that can be configured to use either the
802.11b/g band or the 802.11a band, with an option for
802.11n capability in either band.
Radio 1 supports Multiple-
Input Multiple-Output (MIMO) operation.
 Standard equipment Radio 2, Radio 3 and Radio 4 are
631 mW (peak power) radios fixed on the 802.11a band,
also with an option for 802.11n capability and MIMO
support. The ES2440 can be optionally equipped with three
800mW (peak power) 802.11a/n 4.4 GHz radios in place of
the standard equipment
Radios 2, 3, and 4. The 4.4 GHz
radios do not support MIMO.
Any of the ES2440’s radios can function as a wireless
access point (AP), providing secure WLAN connectivity to
wireless devices within range and as a wireless bridge or
node in a mesh network.
A third ES2440 model without radios—the High-Capacity
Infrastructure Mesh Point for Inline Encryption—is intended
exclusively for wired Ethernet operation.
All ES2440 models are equipped with an internal global
positioning system (GPS) receiver.
1.2.1 Hardware Models
CAUTION: Use of
4.4 GHz radios
outside of U.S. Govern-
ment applications and
authority is strictly for-
bidden.
You can identify by the full model number of the ES2440
whether it is equipped with radios and, if so, how many internal
radio are installed and whether they are standard dual band or
5 GHz 802.11a radios or 4.4 GHz radios:
 ES2440-3555 - four radios:
 one dual band 802.11a/b/g/n MIMO-capable radio
 three 802.11a/n 5 GHz MIMO-capable radios
 ES2440-3444 - four radios:
 one dual band 802.11a/b/g/n MIMO-capable radio
 three 4.4 GHz radios
 ES2440-35 - two radios:
 one dual band 802.11a/b/g/n MIMO-capable radio
 one 802.11a/n 5 GHz MIMO-capable radio
 ES2440-34 - two radios:
 one dual band 802.11a/b/g/n MIMO-capable radio
 one 4.4 GHz radio
 ES2440-0 - no radios