The Cisco 2800 and
3800 Series Access Points target customers requiring support for
mission-critical and best in class applications. The 2800/3800 embodies
ClientLink 4.0, an innovative antenna technology comprising four transmit
radios and four receive radios called 4x4 in a Multiple Input Multiple Output
(MIMO) configuration and supporting three spatial streams (3SS), together
this type of antenna system along with additional Modulation Coding Scheme
(MCS) rates supporting up to 256 QAM and up to 160 MHz channel bonding, rates
of up to 5 Gbps can be supported.
ClientLink 4.0 uses
these features along with an additional antenna (N+1) to allow for beam-forming
for all 802.11a/g/n/ac and now ac Wave-2 clients including those supporting 3
Figure 1. Access Point
Access points are
available in three models:
version labeled “i” that has captured antennas (part of the housing and not
removable). The “i” series is designed for indoor Enterprise installations
where office aesthetics are a primary concern.
version labeled “e” that is more rugged and designed for industrial use in
locations such as hospitals, factories, and warehouses, anywhere a need exists
for external antennas and/or extended operating temperatures. The “e” version
also supports mounting inside NEMA enclosures for use in the most demanding
Access points for
professional install are labeled “p” series and may be used in outdoor
Part Numbers and
Single Unit; Internal Antenna Model
10 pack; Internal Antenna Model
Single Unit; External Antenna Model
10 pack; External Antenna Model
Single Unit; Internal Antenna Model; Configurable
10 pack; Internal Antenna Model; Configurable
Single Unit; External Antenna Model; Configurable
10 pack; External Antenna Model; Configurable
Versions Compatible with AP 2800 and AP 3800
The minimum versions
supporting the AP 2800 and 3800 are:
Controller (WLC) AirOS release 8.2MR1
MSE or CMX 10.2.2
the AP 2800 and AP 3800 Access Points
The mechanical front
of the AP 2800 and AP 3800 are nearly identical in physical appearance.
Figure 2. AP 2800 and AP
3800 (I and E) versions
The AP 3800 is also
available in a "P" version. The external antenna "E" versions permit antenna
gains up to 6 dBi, "P" version up to 13 dBi.
Figure 3. AP
There are slight
differences in the weight and thickness of the 2800 and 3800. The AP 3800 is a
bit more robust as it has support for mGig (NBASE-T) and optional module
support. AP 2800 on left is smooth and does not have heat fins.
Figure 4. AP 2800/3800
Depending on the
model the thickness changes slightly.
Figure 5. AP 2800 and AP
The weight is
slightly different between the models.AP 3800 both “E” and “P” versions as well
as the 2800e is 2.1 kg.AP 3800i is 2.0 kg. AP 2800i is 1.6 kg.
Both products use the
same brackets as 2700/3700 2700/3700 Series Access Points–AIR-AP-BRACKET1 and
Here is a basic
Figure 6. Feature
comparisons of 2800 and 3800 series
Ports on the AP
2800 and AP 3800
The AP 2800 is
similar to the AP 3800 but lacks a local power supply input and mGig PoE port.
Additionally, the USB port is mounted sideways.
Figure 7. Ports on 2800
Figure 8. Ports on 3800
The AP 3800 has a
local power supply jack on the right; This is a new style connector and is not
compatible with the older AIR-PWR-B power supplies used with the AP 2700 and AP
3700 series. For more on this connector, see the
section for details.
In addition there is
an mGig port as well as a port for external modules on the AP 3800.
Figure 9. External module
port on the 3800 series
Smart Antenna Connector Ports
The AP 3800 has
modularity support that is a bit different from the original module design on
the prior AP 3600 and AP 3700 series. This module design allows for
installation onto the side of the access point. This allows for larger antenna
arrays and does not constrict the development of Cisco and potentially third
party modules as they are no longer limited by the physical size of the cccess
point. Additionally, filtering is installed on the AP 3800 for cellular and
other radio coexistence.
The external antenna
connectors on the "E" and "P" series are identical to the antenna connectors on
previous access points. There is no difference in operation when the access
point is used in dual band (2.4 and 5 GHz) operation. which is the default
mode. RF coverage and cell sizes are similar to the previous AP 2700 and 3700
series so there is no need to do a new site survey.
Unlike the prior
external antenna versions, the new 2800 and 3800 series Access Points now
support the capability of dual 5–GHz operation. When in this mode, a smart
antenna connector must be used on the external antenna models, as the
additional 5–GHz radio cannot use the same top antennas on the access point
that are being used by the primary 5–GHz radio.
When a smart antenna
connector is installed, the XOR radio (the radio that is defined in software as
Radio 0) now has its RF switched to the smart antenna connector.
Figure 10. External
connector ports on AP 2800e and 3800e