Huawei Technologies R250D Remote Unit User Manual Product Description
Huawei Technologies Co.,Ltd Remote Unit Product Description
Contents
Users Manual
R250D&R250D-E
Product Description
Issue
01
Date
2016-07-05
HUAWEI TECHNOLOGIES CO., LTD.
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Copyright © Huawei Technologies Co., Ltd. 2016. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior
written consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions
and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective
holders.
Notice
The purchased products, services and features are stipulated by the contract made between Huawei and
the customer. All or part of the products, services and features described in this document may not be
within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements,
information, and recommendations in this document are provided "AS IS" without warranties, guarantees or
representations of any kind, either express or implied.
The information in this document is subject to change without notice. Every effort has been made in the
preparation of this document to ensure accuracy of the contents, but all statements, information, and
recommendations in this document do not constitute a warranty of any kind, express or implied.
Huawei Technologies Co., Ltd.
Address:
Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website:
http://e.huawei.com
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About This Document
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About This Document
Intended Audience
This document describes the positioning, characteristics, hardware structure, product features,
and technical specifications of the RU.
This document helps you understand the characteristics and features of the RU.
This document is intended for:
Network planning engineers
Hardware installation engineers
Commissioning engineer
Data configuration engineers
On-site maintenance engineers
Network monitoring engineers
System maintenance engineers
Symbol Conventions
The symbols that may be found in this document are defined as follows.
Symbol
Description
Indicates an imminently hazardous situation
which, if not avoided, will result in death or
serious injury.
Indicates a potentially hazardous situation
which, if not avoided, could result in death
or serious injury.
Indicates a potentially hazardous situation
which, if not avoided, may result in minor
or moderate injury.
Indicates a potentially hazardous situation
which, if not avoided, could result in
equipment damage, data loss, performance
deterioration, or unanticipated results.
NOTICE is used to address practices not
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Symbol
Description
related to personal injury.
Calls attention to important information,
best practices and tips.
NOTE is used to address information not
related to personal injury, equipment
damage, and environment deterioration.
Change History
Changes between document issues are cumulative. The latest document issue contains all the
changes made in previous issues.
Changes in Issue 01 (2016-07-05)
This is the initial commercial release.
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Contents
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Contents
About This Document .................................................................................................................... ii
1 Product Positioning and Characteristics ................................................................................... 1
1.1 Product Positioning ....................................................................................................................................................... 1
1.2 Product Characteristics ................................................................................................................................................. 2
2 Hardware Structure....................................................................................................................... 5
2.1 R250D ........................................................................................................................................................................... 5
2.2 R250D-E ....................................................................................................................................................................... 9
3 Product Features .......................................................................................................................... 13
3.1 WLAN Features .......................................................................................................................................................... 13
3.2 Network Features ........................................................................................................................................................ 14
3.3 QoS Features ............................................................................................................................................................... 14
3.4 Security Features ........................................................................................................................................................ 14
3.5 Maintenance Features ................................................................................................................................................. 15
3.6 BYOD ......................................................................................................................................................................... 15
3.7 Locating Service ......................................................................................................................................................... 15
3.8 Spectrum Analysis ...................................................................................................................................................... 16
4 Technical Specifications ............................................................................................................ 17
4.1 Basic Specifications .................................................................................................................................................... 17
4.2 Radio Specifications (R250D) .................................................................................................................................... 18
4.3 Radio Specifications (R250D-E) ................................................................................................................................ 22
4.4 Standards Compliance ................................................................................................................................................ 25
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1 Product Positioning and Characteristics
1.1 Product Positioning
Product Overview
The R250D and R250D-E are remote units (RUs) used in Huawei agile distributed Wi-Fi
solution. They support PoE power supply, and are deployed indoors and connected to the
central AP. The central AP and RUs are connected through network cables, which greatly
extends the coverage range, enhances flexibility in AP deployment and planning, and reduces
the engineering construction costs. The central AP manages the RUs and processes services in
a centralized manner. The RUs process radio signals independently. Such distributed
architecture further improves the wireless access capability, creating optimal service
experience for users.
The RU uses an 86 mm plate in compliance with international standards and can be easily
installed into a junction box in a room. It is equipped with a built-in antenna and a hidden
indicator; therefore, installation of the RU does not affect indoor decorations and designs. It
also has an IEEE 802.11a/b/g/n/ac/ac wave2 wireless module and can work on both 5 GHz
and 2.4 GHz frequency bands.
The RU is recommended for environments with complex wall structures and high-density
rooms, such as schools, hotels, hospitals, and office meeting rooms. Signals are transmitted
through network cables without attenuation. The RUs are deployed indoors and provide
comprehensive signal coverage.
The RUs are managed by the central AP. The central AP and RUs are plug-and-play and can
be managed and maintained in real time. Compared with traditional distributed AP solutions,
the AC in Huawei agile distributed Wi-Fi solution needs to manage a smaller number of APs.
A large number of RUs can be deployed, which improves the overall performance and reduces
network deployment costs.
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Usage Scenario
Figure 1-1 Distributed wireless access
As shown in the figure, the downlink GE interfaces of the central AP support PoE power
supply and can be directly connected to RUs. The central AP can connect to more RUs
through a PoE switch. RUs are deployed indoors and communicate with the central AP
through network cables.
1.2 Product Characteristics
Long-Distance Network Coverage
Unlike the traditional distributed AP which allows for a maximum feeder length of 15 m, the
central AP uses network cables to replace feeder cables and supports up to 100 m distance
from the RUs. The network coverage range is therefore expanded by several times.
No Wall Penetration Loss, No Coverage Hole
Restricted by feeder length or installation requirements, signals have to pass through walls in
some scenarios, resulting in large signal attenuation. If rooms to be covered have complex
structures, coverage holes may occur. To prevent these problems, lots of calculation and
verification work needs to be carried out. Huawei distributed solution solves these problems.
In this solution, RUs are placed in rooms, and signals are transmitted over wired cables,
without wall penetration loss, delivering high-quality wireless access services.
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802.11ac/ac wave2 Gigabit Wireless Rate
The RU complies with IEEE 802.11a/b/g/n/ac/ac wave2, supports 2x2 MIMO, works on both
2.4 and 5 GHz frequency bands, and provides strong signals and gigabit wireless rate.
Unique, Graceful Plate Design
The RU is white in appearance and has heat emission holes and interfaces at the side and
bottom. The mounting screws are hidden under the slide panel. The overall design is simple
but graceful and blends well with the layout of hotels and apartments.
Easy to Install in a Standard 86-type Box
The RU uses an 86 mm plate in compliance with international standards and can be easily
installed into a junction box in a room, requiring no drilling or cabling.
Flexible Installation Modes
In addition to an 86-type box, the R250D can be installed on a wall or ceiling, and the
R250D-E can be installed on a desk, rendering the installation location flexible.
Hidden Indicator, Zero Impact on Sleep
The RU uses a hidden indicator design. When being turned on, the indicator has soft light.
The AC controls the switch of the indicator and turns off the indicator at nights to prevent
blinking lights from affecting sleep of guests.
Four Downlink Ethernet Interfaces, Supporting Wired Access from Multiple
Users
The R250D-E has four downlink 1000M Ethernet interfaces that can process data
concurrently. The interfaces can be connected to multiple terminals through network cables,
such as the IPTV, desktop computer, and laptop, meeting requirements of hotels and
apartments. One downlink 1000M Ethernet interface supports PoE out and can provide power
supply for connected devices such as IP phones.
Auto Shutdown of the Wired Interface
In some cases, a loop may occur on a network connected to the RU's wired interface, for
example, when the RU and the network are connected through a hub. The auto shutdown
function enables the RU to automatically shut down its wired interface for protection.
This function takes effect only when the wired network connected to the RU's wired interface does not
terminate STP packets from the RU.
Low Engineering Cost
Compared with traditional distributed APs, the central AP cuts down the following expenses:
Construction: Network cables replace expensive feeder cables. The central AP can
directly use the network cables originally routed in the rooms, without the need of
deploying new cables.
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License: The maximum number of central APs in Fit AP mode allowed by the AC is
controlled by licenses, but RUs do not require licenses. Therefore, one central AP can
use RUs to cover dozens of rooms.
Hierarchical Processing Technology, High Wireless Forwarding Capability
Huawei distributed solution uses innovative hierarchical processing technology. The central
AP manages RUs in a centralized manner and concurrently forwards service traffic, while the
RUs only process radio signals. The hierarchical design makes the network structure clearer
and reduces the processing burden on the central AP and RUs, improving efficiency and
optimizing the overall wireless forwarding performance.
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2 Hardware Structure
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2 Hardware Structure
2.1 R250D
Appearance
The actual device appearance may be different from the following device appearance; these differences
will not affect device functions.
Figure 2-1 R250D appearance
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Port
Figure 2-2 R250D ports
As shown in Figure 2-2, each port can be described as follows:
1. GE1: 10/100/1000M port: connects to the wired Ethernet.
2. Default: Reset button used to restore factory settings and restarts the device if you hold
down the button more than 3 seconds.
3. GE0/PoE_IN: 10/100/1000M port: connects to the wired Ethernet and supports PoE
input.
The R250D provides only one indicator, as shown in Figure 2-3.
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Figure 2-3 Indicator
The indicator is located inside the panel, which turns on after the AP is powered on.
Indicator colors may vary slightly at different temperature.
Table 2-1 Indicator description
Type
Color
Status
Description
Default status after
power-on
Green
Steady on
The AP is just
powered on and the
software is not
started yet.
Software startup
status
Green
Steady on after
blinking once
After the system is
reset and starts
uploading the
software, the
indicator blinks
green once. Until the
software is uploaded
and started, the
indicator remains
steady green.
Running status
Green
Blinking once every
2s (0.5 Hz)
The system is
running properly,
the Ethernet
connection is
normal, and STAs
are associated with
the AP.
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Type
Color
Status
Description
Blinking once every
5s (0.2 Hz)
The system is
running properly,
the Ethernet
connection is
normal, and no STA
is associated with
the AP. The system
is in low power
consumption state.
Alarm
Green
Blinking once
Alarm Green every
0.25s (4 Hz)
The software is
being upgraded.
After the
software is
uploaded and
started, the AP
working in Fit
AP mode
requests to go
online on the AC
and maintains
this state until it
goes online
successfully on
the AC (before
the CAPWAP
link is
established).
The AP
registration fails
(the CAPWAP
link is
disconnected).
Fault
Red
Steady on
A fault that affects
services has
occurred, such as a
DRAM detection
failure or system
software loading
failure. The fault
cannot be
automatically
rectified and must be
rectified manually.
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2.2 R250D-E
Appearance
The actual device appearance may slightly differ from the following device appearance, but these
differences will not affect device functions.
Figure 2-4 AP2050DN-E appearance
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Ports
Figure 2-5 AP2050DN-E ports
As shown in Figure 2-5, each port can be described as follows:
1. DC 48V: DC power socket: connects a 48V power adapter to the AP.
2. USB: Connects to a USB flash drive or other storage devices to extend the storage space
of the AP. The USB2.0 standard is supported.
3. Default: Reset button: restores factory settings and restarts the device if you hold down
the button more than 3 seconds.
4. Pass Through: Connects to a network cable or phone cable for transparent transmission.
5. GE2 to GE4: 10/100/1000M port: connects to the wired Ethernet.
6. GE1/PoE_OUT: 10/100/1000M port: connects to the wired Ethernet and supports PoE
output.
7. GE0/PoE_IN: 10/100/1000M port: connects to the wired Ethernet and supports PoE
input.
LED Indicator
The R250D-E provides only a single indicator, as shown in Figure 2-6.
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Figure 2-6 Indicator
The indicator is located inside the panel, which turns on after the AP is powered on.
Indicator colors may vary slightly at different temperature.
Table 2-2 Indicator description
Type
Color
Status
Description
Default status after
power-on
Green
Steady on
The AP is just
powered on and the
software is not
started yet.
Software startup
status
Green
Steady on after
blinking once
After the system is
reset and starts
uploading the
software, the
indicator blinks
green once. Until the
software is uploaded
and started, the
indicator remains
steady green.
Running status
Green
Blinking once every
2s (0.5 Hz)
The system is
running properly,
the Ethernet
connection is
normal, and STAs
are associated with
the AP.
Blinking once every
5s (0.2 Hz)
The system is
running properly,
the Ethernet
connection is
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Type
Color
Status
Description
normal, and no STA
is associated with
the AP. The system
is in low power
consumption state.
Alarm
Green
Blinking once
Alarm Green every
0.25s (4 Hz)
The software is
being upgraded.
After the
software is
uploaded and
started, the AP
working in Fit
AP mode
requests to go
online on the AC
and maintains
this state until it
goes online
successfully on
the AC (before
the CAPWAP
link is
established).
The AP
registration fails
(the CAPWAP
link is
disconnected).
Fault
Red
Steady on
A fault that affects
services has
occurred, such as a
DRAM detection
failure or system
software loading
failure. The fault
cannot be
automatically
rectified and must be
rectified manually.
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3 Product Features
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3 Product Features
3.1 WLAN Features
WLAN features supported by the AP are as follows:
Compliance with IEEE 802.11a/b/g/n/ac/ac Wave 2
Maximum rate of 1.167 Gbit/s
Maximum ratio combining (MRC)
Space time block code (STBC)
Beamforming
MU-MIMO
Low-density parity-check (LDPC)
Maximum-likelihood detection (MLD)
Frame aggregation, including A-MPDU (Tx/Rx) and A-MSDU (Rx only)
Short guard interval (GI) in 20 MHz, 40 MHz, and 80 MHz modes
Priority mapping and packet scheduling based on a Wi-Fi Multimedia (WMM) profile to
implement priority-based data processing and forwarding
Automatic and manual rate adjustment
WLAN channel management and channel rate adjustment
For details about WLAN channel management, see the Country Code & Channel Compliance Table.
Automatic channel scanning and interference avoidance
Service set identifier (SSID) hiding
Signal sustain technology (SST)
Unscheduled automatic power save delivery (U-APSD)
Control and Provisioning of Wireless Access Points (CAPWAP)
Automatic login
Extended Service Set (ESS)
Multi-user CAC
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3.2 Network Features
Network features supported by the AP are as follows:
Compliance with IEEE 802.3u
Auto-negotiation of the rate and duplex mode and automatic switchover between the
Media Dependent Interface (MDI) and Media Dependent Interface Crossover (MDI-X)
Compliance with IEEE 802.1q
SSID-based VLAN assignment
VLAN trunk on uplink Ethernet ports
Management channel of the AP uplink port in tagged and untagged mode
DHCP client, obtaining IP addresses through DHCP
Tunnel data forwarding and direct data forwarding
STA isolation in the same VLAN
Access control lists (ACLs)
Link Layer Discovery Protocol (LLDP)
Uninterrupted service forwarding upon CAPWAP channel disconnection
Unified authentication on the AC
AC dual-link backup
IPv6
3.3 QoS Features
QoS features supported by the AP are as follows:
Priority mapping and packet scheduling based on a Wi-Fi Multimedia (WMM) profile to
implement priority-based data processing and forwarding
WMM parameter management for each radio
WMM power saving
Priority mapping for upstream packets and flow-based mapping for downstream packets
Queue mapping and scheduling
User-based bandwidth limiting
Adaptive bandwidth management (automatic bandwidth adjustment based on the user
quantity and radio environment) to improve user experience
Airtime scheduling
3.4 Security Features
Security features supported by the AP are as follows:
Open system authentication
WEP authentication/encryption using a 64-bit, 128-bit, or 152-bit encryption key
WPA/WPA2-PSK authentication and encryption (WPA/WPA2 personal edition)
WPA/WPA2-802.1x authentication and encryption (WPA/WPA2 enterprise edition)
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WPA-WPA2 hybrid authentication
WAPI authentication and encryption
Wireless intrusion detection system (WIDS) and wireless intrusion prevention system
(WIPS), including rogue device detection and countermeasure, attack detection and
dynamic blacklist, and STA/AP blacklist and whitelist
802.1x authentication, MAC address authentication, and Portal authentication
DHCP snooping
Dynamic ARP Inspection (DAI)
IP Source Guard (IPSG)
3.5 Maintenance Features
Maintenance features supported by the AP are as follows:
Unified management and maintenance on the AC
Automatic login and configuration loading, and plug-and-play (PnP)
Batch upgrade
Telnet
STelnet using SSH v2
Real-time configuration monitoring and fast fault location using the NMS
System status alarm
3.6 BYOD
BYOD features supported by the AP are as follows:
Identifies the device type according to the organizationally unique identifier (OUI) in the
MAC address.
Identifies the device type according to the user agent (UA) information in an HTTP
packet.
Identifies the device type according to DHCP options.
The RADIUS server delivers packet forwarding, security, and QoS policies according to
the device type carried in the RADIUS authentication and accounting packets.
3.7 Locating Service
The AP supports the locating service only in Fit AP mode.
Locating service features supported by the AP are as follows:
Locates tags manufactured by AeroScout or Ekahau.
Locates Wi-Fi terminals.
Works with eSight to locate rogue devices.
The R250D-E supports Bluetooth location.
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3.8 Spectrum Analysis
Spectrum analysis features supported by the AP are as follows:
Identifies interference sources such as baby monitors, Bluetooth devices, digital cordless
phones (at 2.4 GHz frequency band only), wireless audio transmitters (at both the 2.4
GHz and 5 GHz frequency bands), wireless game controllers, and microwaves.
Works with eSight to locate and perform spectrum analysis on interference sources.
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4 Technical Specifications
4.1 Basic Specifications
Table 4-1 R250D Basic specifications
Item
Description
Physical
specifications
Dimensions (H x
W x D)
26 mm x 86 mm x 120 mm
Weight
0.2 kg
System memory
256 MB DDR3L
32MB Flash
Power
specifications
Power input
PoE power supply: in compliance with IEEE
802.3af/at
Maximum power
consumption
10.1 W
NOTE
The actual maximum power consumption depends on local
laws and regulations.
Environment
specifications
Operating
temperature
-60 m to +1800 m: 0°C to +40°C
1800 m to 5000 m: Temperature decreases by
1°C every time the altitude increases 300 m.
Storage
temperature
-40°C to +70°C
Operating
humidity
5% to 95% (non-condensing)
IP rating
IP20
Atmospheric
pressure
53 kPa to 106 kPa
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Table 4-2 R250D-E Basic specifications
Item
Description
Physical
specifications
Dimensions (H x
W x D)
36mm x 86mm x 140mm
Weight
0.26kg
System memory
256MB DDR3L
32MB FLASH
Power
specifications
Power input
DC:48V±5%
PoE power supply: in compliance with IEEE
802.3af/at
Maximum power
consumption
11.5 W (excluding the output power of the USB port
and PoE_OUT port)
NOTE
The actual maximum power consumption depends on local
laws and regulations.
Environment
specifications
Operating
temperature
-60 m to +1800 m: 0°C to +40°C
1800 m to 5000 m: Temperature decreases by
1°C every time the altitude increases 300 m.
Storage
temperature
-40°C to +70°C
Operating
humidity
5% to 95% (non-condensing)
IP rating
IP20
Atmospheric
pressure
53 kPa to 106 kPa
4.2 Radio Specifications (R250D)
Table 4-3 Radio specifications
Item
Description
Antenna
type
Built-in antenna
Antenna
gain
2.4 GHz: 4 dBi(Typical)
5 GHz: 6 dBi(Typical)
Maximum
number of
concurrent
users
≤256
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Item
Description
Maximum
number of
VAPs for
each radio
16
Maximum
transmit
power
2.4 GHz: 21 dBm (combined power)
5 GHz: 20 dBm (combined power)
NOTE
The actual transmit power depends on local laws and regulations.
You can adjust the transmit power from the maximum transmit power to 1 dBm, with a
step of 1 dB.
Maximum
number of
non-overlap
ping
channels
2.4 GHz
802.11b/g
20 MHz: 3
802.11n
20 MHz: 3
40 MHz: 1
5 GHz
802.11a
− 20 MHz:
13
802.11n
− 20 MHz:
13
− 40 MHz:
6
802.11ac
− 20 MHz:
13
− 40 MHz:
6
− 80 MHz:
3
NOTE
The table uses the number of
non-overlapping channels supported by
China as an example. The number of
non-overlapping channels varies in
different countries. For details, see the
Country Codes & Channels Compliance.
Channel rate
802.11b: 1, 2, 5.5, and 11 Mbit/s
802.11a/g: 6, 9, 12, 18, 24, 36, 48, and 54 Mbit/s
802.11n: 6.5 to 300 Mbit/s
802.11ac: 6.5 to 867 Mbit/s
Receiver
sensitivity
(Typical
values)
2.4 GHz
802.11b
-99 dBm @ 1
Mbit/s
-97 dBm @ 2
Mbit/s
-95 dBm @
5.5 Mbit/s
-92 dBm @
11 Mbit/s
2.4 GHz
802.11g
-94 dBm @ 6
Mbit/s
-93 dBm @ 9
Mbit/s
-90 dBm @
12 Mbit/s
-89 dBm @
18 Mbit/s
-85 dBm @
24 Mbit/s
-84 dBm @
2.4 GHz
802.11n (HT20)
-93 dBm @
MCS0
-89 dBm @
MCS1
-87 dBm @
MCS2
-85 dBm @
MCS3
-82 dBm @
MCS4
-78 dBm @
2.4 GHz
802.11n(HT40)
-91 dBm @
MCS0
-88 dBm @
MCS1
-85 dBm @
MCS2
-83 dBm @
MCS3
-80 dBm @
MCS4
-76 dBm @
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Item
Description
36 Mbit/s
-79 dBm @
48 Mbit/s
-78 dBm @
54 Mbit/s
MCS5
-76 dBm @
MCS6
-74 dBm @
MCS7
-91 dBm @
MCS8
-87 dBm @
MCS9
-85 dBm @
MCS10
-83 dBm @
MCS11
-80 dBm @
MCS12
-76 dBm @
MCS13
-74 dBm @
MCS14
-72 dBm @
MCS15
MCS5
-75 dBm @
MCS6
-72 dBm @
MCS7
-89 dBm @
MCS8
-86 dBm @
MCS9
-83 dBm @
MCS10
-81 dBm @
MCS11
-78 dBm @
MCS12
-74 dBm @
MCS13
-73 dBm @
MCS14
-70 dBm @
MCS15
5 GHz
802.11a
-91 dBm @ 6
Mbit/s
-91 dBm @ 9
Mbit/s
-89 dBm @
12 Mbit/s
-88 dBm @
18 Mbit/s
-85 dBm @
24 Mbit/s
-82 dBm @
36 Mbit/s
-77 dBm @
48 Mbit/s
-76 dBm @
54 Mbit/s
5 GHz
802.11n (HT20)
-91 dBm @
MCS0
-88 dBm @
MCS1
-87 dBm @
MCS2
-84 dBm @
MCS3
-80 dBm @
MCS4
-76 dBm @
MCS5
-74 dBm @
MCS6
-72 dBm @
MCS7
-89 dBm @
MCS8
-86 dBm @
MCS9
-85 dBm @
MCS10
5 GHz
802.11n (HT40)
-88 dBm @
MCS0
-86 dBm @
MCS1
-82 dBm @
MCS2
-80 dBm @
MCS3
-77 dBm @
MCS4
-73 dBm @
MCS5
-71 dBm @
MCS6
-69 dBm @
MCS7
-86 dBm @
MCS8
-84 dBm @
MCS9
-80 dBm @
MCS10
-
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Item
Description
-82 dBm @
MCS11
-78 dBm @
MCS12
-74 dBm @
MCS13
-72 dBm @
MCS14
-70 dBm @
MCS15
-78 dBm @
MCS11
-75 dBm @
MCS12
-71 dBm @
MCS13
-69 dBm @
MCS14
-67 dBm @
MCS15
5 GHz
802.11ac
(VHT20)
-91 dBm @
MCS0NSS1
-88 dBm @
MCS1NSS1
-87 dBm @
MCS2NSS1
-83 dBm @
MCS3NSS1
-80 dBm @
MCS4NSS1
-76 dBm @
MCS5NSS1
-74 dBm @
MCS6NSS1
-72 dBm @
MCS7NSS1
-69 dBm @
MCS8NSS1
-89 dBm @
MCS0NSS2
-86 dBm @
MCS1NSS2
-85 dBm @
MCS2NSS2
-81 dBm @
MCS3NSS2
-78 dBm @
MCS4NSS2
-74 dBm @
MCS5NSS2
-72 dBm @
MCS6NSS2
5 GHz
802.11ac
(VHT40)
-88 dBm @
MCS0NSS1
-85 dBm @
MCS1NSS1
-82 dBm @
MCS2NSS1
-80 dBm @
MCS3NSS1
-77 dBm @
MCS4NSS1
-73 dBm @
MCS5NSS1
-71 dBm @
MCS6NSS1
-69 dBm @
MCS7NSS1
-66 dBm @
MCS8NSS1
-64 dBm @
MCS9NSS1
-86 dBm @
MCS0NSS2
-83 dBm @
MCS1NSS2
-80 dBm @
MCS2NSS2
-78 dBm @
MCS3NSS2
-75 dBm @
MCS4NSS2
-71 dBm @
MCS5NSS2
5 GHz
802.11ac
(VHT80)
-85 dBm @
MCS0NSS1
-82 dBm @
MCS1NSS1
-79 dBm @
MCS2NSS1
-77 dBm @
MCS3NSS1
-74 dBm @
MCS4NSS1
-70 dBm @
MCS5NSS1
-68 dBm @
MCS6NSS1
-67 dBm @
MCS7NSS1
-62 dBm @
MCS8NSS1
-61 dBm @
MCS9NSS1
-83 dBm @
MCS0NSS2
-80 dBm @
MCS1NSS2
-77 dBm @
MCS2NSS2
-75 dBm @
MCS3NSS2
-72 dBm @
MCS4NSS2
-68 dBm @
MCS5NSS2
-
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Item
Description
-70 dBm @
MCS7NSS2
-67 dBm @
MCS8NSS2
-69 dBm @
MCS6NSS2
-67 dBm @
MCS7NSS2
-64 dBm @
MCS8NSS2
-62 dBm @
MCS9NSS2
-66 dBm @
MCS6NSS2
-65 dBm @
MCS7NSS2
-60 dBm @
MCS8NSS2
-59 dBm @
MCS9NSS2
4.3 Radio Specifications (R250D-E)
Table 4-4 Radio specifications
Item
Description
Antenna
type
Built-in antenna
Antenna
gain
2.4 GHz: 4 dBi
5 GHz: 5 dBi
Maximum
number of
concurrent
users
≤256
Maximum
number of
VAPs for
each radio
16
Maximum
transmit
power
2.4 GHz: 21 dBm (combined power)
5 GHz: 20 dBm (combined power)
NOTE
The actual transmit power depends on local laws and regulations.
You can adjust the transmit power from the maximum transmit power to 1 dBm, with a
step of 1 dB.
Maximum
number of
non-overlap
ping
channels
2.4 GHz
802.11b/g
20 MHz: 3
802.11n
20 MHz: 3
40 MHz: 1
5 GHz
802.11a
− 20 MHz:
13
802.11n
− 20 MHz:
13
− 40 MHz:
NOTE
The table uses the number of
non-overlapping channels supported by
China as an example. The number of
non-overlapping channels varies in
different countries. For details, see the
Country Codes & Channels Compliance.
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Item
Description
6
802.11ac
− 20 MHz:
13
− 40 MHz:
6
− 80 MHz:
3
Channel rate
802.11b: 1, 2, 5.5, and 11 Mbit/s
802.11a/g: 6, 9, 12, 18, 24, 36, 48, and 54 Mbit/s
802.11n: 6.5 to 300 Mbit/s
802.11ac: 6.5 to 867 Mbit/s
Receiver
sensitivity
(Typical
values)
2.4 GHz
802.11b
-97 dBm @ 1
Mbit/s
-95 dBm @ 2
Mbit/s
-94 dBm @
5.5 Mbit/s
-91 dBm @
11 Mbit/s
2.4 GHz
802.11g
-93 dBm @ 6
Mbit/s
-92 dBm @ 9
Mbit/s
-90 dBm @
12 Mbit/s
-89 dBm @
18 Mbit/s
-87 dBm @
24 Mbit/s
-84 dBm @
36 Mbit/s
-80 dBm @
48 Mbit/s
-78 dBm @
54 Mbit/s
2.4 GHz
802.11n (HT20)
-93 dBm @
MCS0
-89 dBm @
MCS1
-88 dBm @
MCS2
-85 dBm @
MCS3
-82 dBm @
MCS4
-78 dBm @
MCS5
-76 dBm @
MCS6
-74 dBm @
MCS7
-91 dBm @
MCS8
-87 dBm @
MCS9
-86 dBm @
MCS10
-83 dBm @
MCS11
-80 dBm @
MCS12
-76 dBm @
MCS13
-74 dBm @
MCS14
2.4 GHz
802.11n(HT40)
-90 dBm @
MCS0
-87 dBm @
MCS1
-86 dBm @
MCS2
-83 dBm @
MCS3
-79 dBm @
MCS4
-75 dBm @
MCS5
-74 dBm @
MCS6
-73 dBm @
MCS7
-88 dBm @
MCS8
-85 dBm @
MCS9
-84 dBm @
MCS10
-81 dBm @
MCS11
-77 dBm @
MCS12
-73 dBm @
MCS13
-72 dBm @
MCS14
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Item
Description
-72 dBm @
MCS15
-71 dBm @
MCS15
5 GHz
802.11a
-93 dBm @ 6
Mbit/s
-92 dBm @ 9
Mbit/s
-90 dBm @
12 Mbit/s
-89 dBm @
18 Mbit/s
-87 dBm @
24 Mbit/s
-82 dBm @
36 Mbit/s
-79 dBm @
48 Mbit/s
-77 dBm @
54 Mbit/s
5 GHz
802.11n (HT20)
-92 dBm @
MCS0
-90 dBm @
MCS1
-88 dBm @
MCS2
-85 dBm @
MCS3
-81 dBm @
MCS4
-77 dBm @
MCS5
-75 dBm @
MCS6
-74 dBm @
MCS7
-90 dBm @
MCS8
-88 dBm @
MCS9
-86 dBm @
MCS10
-83 dBm @
MCS11
-79 dBm @
MCS12
-75 dBm @
MCS13
-73 dBm @
MCS14
-72 dBm @
MCS15
5 GHz
802.11n (HT40)
-89 dBm @
MCS0
-87 dBm @
MCS1
-85 dBm @
MCS2
-82 dBm @
MCS3
-79 dBm @
MCS4
-75 dBm @
MCS5
-73 dBm @
MCS6
-72 dBm @
MCS7
-87 dBm @
MCS8
-85 dBm @
MCS9
-83 dBm @
MCS10
-80 dBm @
MCS11
-77 dBm @
MCS12
-73 dBm @
MCS13
-71 dBm @
MCS14
-70 dBm @
MCS15
-
5 GHz
802.11ac
(VHT20)
-92 dBm @
MCS0NSS1
-90 dBm @
MCS1NSS1
-87 dBm @
MCS2NSS1
5 GHz
802.11ac
(VHT40)
-90 dBm @
MCS0NSS1
-87 dBm @
MCS1NSS1
-85 dBm @
MCS2NSS1
5 GHz
802.11ac
(VHT80)
-86 dBm @
MCS0NSS1
-83 dBm @
MCS1NSS1
-81 dBm @
MCS2NSS1
-
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Item
Description
-84 dBm @
MCS3NSS1
-81 dBm @
MCS4NSS1
-77 dBm @
MCS5NSS1
-75 dBm @
MCS6NSS1
-73 dBm @
MCS7NSS1
-69 dBm @
MCS8NSS1
-90 dBm @
MCS0NSS2
-90 dBm @
MCS1NSS2
-88 dBm @
MCS2NSS2
-85 dBm @
MCS3NSS2
-82 dBm @
MCS4NSS2
-79 dBm @
MCS5NSS2
-75 dBm @
MCS6NSS2
-73 dBm @
MCS7NSS2
-71 dBm @
MCS8NSS2
-81 dBm @
MCS3NSS1
-78 dBm @
MCS4NSS1
-74 dBm @
MCS5NSS1
-73 dBm @
MCS6NSS1
-71 dBm @
MCS7NSS1
-67 dBm @
MCS8NSS1
-65 dBm @
MCS9NSS1
-88 dBm @
MCS0NSS2
-85 dBm @
MCS1NSS2
-83 dBm @
MCS2NSS2
-79 dBm @
MCS3NSS2
-76 dBm @
MCS4NSS2
-72 dBm @
MCS5NSS2
-71 dBm @
MCS6NSS2
-69 dBm @
MCS7NSS2
-65 dBm @
MCS8NSS2
-63 dBm @
MCS9NSS2
-79 dBm @
MCS3NSS1
-76 dBm @
MCS4NSS1
-71 dBm @
MCS5NSS1
-70 dBm @
MCS6NSS1
-68 dBm @
MCS7NSS1
-65 dBm @
MCS8NSS1
-62 dBm @
MCS9NSS1
-84 dBm @
MCS0NSS2
-81 dBm @
MCS1NSS2
-79 dBm @
MCS2NSS2
-77 dBm @
MCS3NSS2
-74 dBm @
MCS4NSS2
-69 dBm @
MCS5NSS2
-68 dBm @
MCS6NSS2
-66 dBm @
MCS7NSS2
-63 dBm @
MCS8NSS2
-60 dBm @
MCS9NSS2
4.4 Standards Compliance
Safety standards
UL 60950–1
IEC 60950–1
EN 60950–1
GB 4943
R250D&R250D-E
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Radio standards
ETSI EN 300 328
ETSI EN 301 893
FCC Part 15C: 15.247
FCC Part 15C: 15.407
RSS-210
AS/NZS 4268
EMC standards
EN 301 489–1
EN 301 489–17
ETSI EN 60601-1-2
FCC Part 15
ICES-003
YD/T 1312.2-2004
ITU k.21
GB 9254
GB 17625.1
EN 55022
EN 55024
CISPR 22
CISPR 24
IEC61000-4-6
IEC61000-4-2
IEEE standards
IEEE 802.11a/b/g
IEEE 802.11n
IEEE 802.11ac
IEEE 802.11h
IEEE 802.11d
IEEE 802.11e
Security Standards
802.11i, Wi-Fi Protected Access 2 (WPA2), and WPA
802.1X
Advanced Encryption Standards (AES) and Temporal Key Integrity Protocol (TKIP)
EAP Type (s)
Environment Standards
ETSI 300 019-2-1
ETSI 300 019-2-2
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ETSI 300 019-2-3
ETSI 300 019-1-1
ETSI 300 019-1-2
ETSI 300 019-1-3
EMF
CENELEC EN 62311
CENELEC EN 50385
RSS-102
FCC Part1&2
FCC KDB
RoHS
Directive 2002/95/EC & 2011/65/EU
Reach
Regulation 1907/2006/EC
WEEE
Directive 2002/96/EC & 2012/19/EU
FCC Statement
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.
FCC Radiation Exposure Statement
This device complies with FCC radiation exposure limits set forth for an uncontrolled
environment and it also complies with Part 15 of the FCC RF Rules. This equipment
must be installed and operated in accordance with provided instructions and the
antenna(s) used for this transmitter must be installed to provide a separation distance of
at least 25 cm from all persons and must not be co-located or operating in conjunction
with any other antenna or transmitter. End-users and installers must be provide with
antenna installation instructions and consider removing the no-collocation statement.
This device complies with Part 15 of the FCC Rules. Operation is subject to the
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following two conditions: (1) this device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may cause
undesired operation.
Caution!
Any changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.