MOXA AWK-4252A Series

The AWK-4252A Series 3-in-1 industrial wireless AP/bridge/client is designed to meet the growing need for faster data transmission speeds through IEEE 802.11ac technology for aggregated data rates of up to 1.267 Gbps. The AWK-4252A is compliant with industrial standards and approvals covering operating temperature, power input voltage, surge, ESD, and vibration. The two redundant DC power inputs increase the reliability of the power supply, and the AWK-4252A can be powered via PoE to facilitate flexible deployment. The AWK-4252A can operate concurrently on both the 2.4 and 5 GHz bands and is backwards-compatible with existing 802.11a/b/g/n deployments to future-proof your wireless investments.

Advanced 802.11ac Industrial Wireless Solution

• 802.11a/b/g/n/ac compliant AP/bridge/client for flexible deployment
• DFS channel support allows a wider range of 5 GHz channel selection to avoid interference from existing wireless infrastructure

Advanced Wireless Technology

• Seamless roaming with client-based Turbo Roaming for < 150 ms roaming recovery time between APs (Client Mode)

Industrial Ruggedness

• -40 to 75°C wide operating temperature for smooth wireless communication in harsh environments
• Enhanced antenna port isolation protection designed to withstand up to 30 kV ESD and 6 kV surge protection

Specifications

WLAN Interface


WLAN Standards
2.4 GHz: 802.11b/g/n with 256 QAM support
5 GHz: 802.11a/n/ac Wave 2 with 256 QAM support

Frequency Band for US (20 MHz operating channels)
AWK-4252A US Models Only:
2.412 to 2.462 GHz (11 channels)
5.180 to 5.240 GHz (4 channels)
5.260 to 5.320 GHz (4 channels)2
5.500 to 5.700 GHz (11 channels)3
5.745 to 5.825 GHz (5 channels)

Frequency Band for UN (20 MHz operating channels)
AWK-4252A UN Models Only:
2.412 to 2.484 GHz (14 channels)
5.180 to 5.240 GHz (4 channels)
5.260 to 5.320 GHz (4 channels)3
5.500 to 5.700 GHz (11 channels)3
5.745 to 5.825 GHz (5 channels)
Available channels change depending on the selected country or region code.

Wireless Security
WEP encryption (64-bit and 128-bit)
WPA/WPA2/WPA3-Enterprise (IEEE 802.1X/RADIUS, TKIP, AES)
WPA/WPA2/WPA3-Personal

Transmission Rate
2.4 GHz:
802.11b: 1 to 11 Mbps
802.11g: 6 to 54 Mbps
802.11n: 6.5 to 400 Mbps
5 GHz:
802.11a: 6 to 54 Mbps
802.11n: 6.5 to 300 Mbps
802.11ac: 6.5 to 867 Mbps

Transmitter Power for 802.11a (Dual Chain)
24±1.5 dBm @ 6 Mbps
22±1.5 dBm @ 54 Mbps

Transmitter Power for 802.11n (5 GHz, Dual Chain)
24±1.5 dBm @ MCS0 20 MHz
21±1.5 dBm @ MCS7 20 MHz
23±1.5 dBm @ MCS0 40 MHz
21±1.5 dBm @ MCS7 40 MHz

Transmitter Power for 802.11ac (Dual Chain)
23.5±1.5 dBm @ MCS0 20 MHz
20.5±1.5 dBm @ MCS8 20 MHz
23.5±1.5 dBm @ MCS0 40 MHz
20±1.5 dBm @ MCS9 40 MHz
22.5±1.5 dBm @ MCS0 80 MHz
20±1.5 dBm @ MCS9 80 MHz

Transmitter Power for 802.11b (Dual Chain)
27.5±1.5 dBm @ 1 Mbps
28±1.5 dBm @ 11 Mbps

Transmitter Power for 802.11g (Dual Chain)
28±1.5 dBm @ 6 Mbps
25±1.5 dBm @ 54 Mbps

Transmitter Power for 802.11n (2.4 GHz, Dual Chain)
26±1.5 dBm @ MCS0 20 MHz
24±1.5 dBm @ MCS7 20 MHz
26±1.5 dBm @ MCS0 40 MHz
24.5±1.5 dBm @ MCS7 40 MHz

Receiver Sensitivity for 802.11a (measured at 5.680 GHz)
Typ. -88 @ 6 Mbps
Typ. -71 @ 54 Mbps

Receiver Sensitivity for 802.11n (5 GHz; measured at 5.680 GHz)
Typ. -87 dBm @ MCS0 20 MHz
Typ. -68 dBm @ MCS7 20 MHz
Typ. -83 dBm @ MCS0 40 MHz
Typ. -66 dBm @ MCS7 40 MHz

Receiver Sensitivity for 802.11ac Typ. -87 dBm @ MCS0 20 MHz
Typ. -64 dBm @ MCS8 20 MHz
Typ. -84 dBm @ MCS0 40 MHz
Typ. -59 dBm @ MCS9 40 MHz
Typ. -81 dBm @ MCS0 80 MHz
Typ. -56 dBm @ MCS9 80 MHz

Receiver Sensitivity for 802.11b (measured at 2.437 GHz)
Typ. -93 dBm @ 1 Mbps
Typ. -86 dBm @ 11 Mbps
Note: Concurrent USB read/write activity on the device may generate interference and may mildly affect receiver sensitivity performance.
It is recommended to avoid USB activity on the device in mission-critical applications.

Receiver Sensitivity for 802.11g (measured at 2.437 GHz)
Typ. -88 dBm @ 6 Mbps
Typ. -71 dBm @ 54 Mbps
Note: Concurrent USB read/write activity on the device may generate interference and may mildly affect receiver sensitivity performance.
It is recommended to avoid USB activity on the device in mission-critical applications.

Receiver Sensitivity for 802.11n (2.4 GHz; measuredat 2.437 GHz)
Typ. -87 dBm @ MCS0 20 MHz
Typ. -68 dBm @ MCS7 20 MHz
Typ. -84 dBm @ MCS0 40 MHz
Typ. -66 dBm @ MCS7 40 MHz
Note: Concurrent USB read/write activity on the device may generate interference and may mildly affect receiver sensitivity performance.
It is recommended to avoid USB activity on the device in mission-critical applications.

WLAN Operation Mode
Access point
Client
Client-Router
Master
Slave
Sniffer

Antenna
External, 3/6 dBi
Omni-directional

Antenna Connectors
2 x N-type female



Ethernet Interface


Standards
IEEE 802.3 for 10BaseT
IEEE 802.3u for 100BaseT(X)
IEEE 802.3ab for 1000BaseT(X)
IEEE 802.3af for PoE
IEEE 802.3at for PoE
IEEE 802.1Q for VLAN Tagging
IEEE 802.1X for authentication

10/100/1000BaseT(X) Ports (RJ45 connector)
1

PoE Ports (10/100/1000BaseT(X), RJ45 connector)
1



Ethernet Software Features


Management
DHCP Client
DNS
HTTP
IPv4
LLDP
SMTP
SNMPv1/v2c/v3
Syslog
TCP/IP
Telnet
UDP
VLAN
MXconfig

Routing
Port forwarding
Static Route
NAT

Security
HTTPS/SSL
RADIUS
SSH

Time Management
SNTP Client



Firewall


Filter
ICMP
MAC address
IP protocol
Port-based



Serial Interface


Console Port
RS-232
8-pin RJ45



USB Interface


Storage Port
USB Type A



LED Interface


LED Indicators
PWR, LAN1, LAN2, 2.4G, 5G, SYS



Input/Output Interface


Digital Inputs
2
Max. input current: 8 mA
+13 to +30 V for state 1
+3 to -30 V for state 0

Alarm Contact Channels
Relay output with current carrying capacity of 1 A @ 24 VDC

Buttons
Reset button



Physical Characteristics


Housing
Metal

Dimensions
66.5 x 157.6 x 244 mm (2.56 x 6.20 x 9.61 in)

IP Rating
IP68

Weight
2024 g (4.7 lb)

Installation
Wall mounting
DIN-rail mounting (with optional kit)
Pole mounting (with optional kit)



Power Parameters


Input Current
12-48 VDC, 2.2-0.55 A

Input Voltage
12 to 48 VDC
Redundant dual inputs
48 VDC Power-over-Ethernet

Power Connector
M12 A-coded 5-pin male connector

Power Consumption
28.4 W (max.)



Environmental Limits


Operating Temperature
Wide Temp. Models: -40 to 75°C (-40 to 167°F)

Storage Temperature (package included)
-40 to 85°C (-40 to 185°F)

Ambient Relative Humidity
5 to 95% (non-condensing)



Standards and Certifications


EMC
EN 61000-6-2/-6-4
EN 55032/35

EMI
CISPR 32, FCC Part 15B Class A

EMS
IEC 61000-4-2 ESD: Contact: 8 kV; Air: 15 kV IEC 61000-4-3 RS: 80 MHz to 1 GHz: 10 V/m
IEC 61000-4-4 EFT: Power: 2 kV; Signal: 1 kV
IEC 61000-4-5 Surge: Power: 2 kV; Signal: 1 kV
IEC 61000-4-6 CS: 10 V/m
IEC 61000-4-8 PFMF: 30 A/m

Safety
IEC 60950-1
IEC 62368-1
UL 62368-1

Vibration
IEC 60068-2-6

Radio
EN 300 328, EN 301 489-1/17, EN 301 893,
ANATEL, FCC, MIC, NCC, RCM, SRRC,WPC, KC, IC



MTBF


Time
746,471 hrs

Standards
Telcordia SR332



1. The Turbo Roaming recovery time indicated herein is an average of test results documented, in optimized conditions, across APs configured with interference-free 20-MHz RF channels, WPA2-PSK security, and default Turbo Roaming parameters. The clients are configured with 3-channel roaming at 100 Kbps traffic load. Other conditions may also impact roaming performance. For more information about Turbo Roaming parameter settings, refer to the product manual.
2. DFS (Dynamic Frequency Selection) channel support: In AP mode, when a radar signal is detected, the device will automatically switch to another channel. However, according to regulations, after switching channels, a 60-second availability check period is required before starting the service.
3. DFS (Dynamic Frequency Selection) channel support: In AP mode, when a radar signal is detected, the device will automatically switch to another channel. However, according to regulations, after switching channels, a 60-second availability check period is required before starting the service.

Package Contents

Device
1 x AWK-4252A Series wireless AP/bridge/client

Installation Kit
2 x cap, plastic, for N-type connector
4 x cap, metal, for Console/USB/LAN1/LAN2
1 x cap, metal, for DI/DO port
1 x wall-mounting kit

Antenna
2 x 2.4/5 GHz antenna

Documentation
1 x quick installation guide
1 x warranty card

Ordering Information

Model Name	Band	Standards	Operating Temp.
AWK-4252A-UN-T	UN	802.11a/b/g/n/ac Wave 2	-40 to 75°C
AWK-4252A-US-T	US	802.11a/b/g/n/ac Wave 2	-40 to 75°C

Accessories (sold separately)

Antennas
ANT-WSB-PNF-12-02	12 dBi at 2.4 GHz, N-type (female), single-band directional antenna
ANT-WSB5-PNF-16	16 dBi at 5 GHz, N-type (female), single-band directional antenna
ANT-WDB-ONM-0707	07 dBi at 2.4 GHz and 07 dBi at 5 GHz, N-type (male), dual-band omnidirectional antenna
ANT-WDB-PNF-1011	10 dBi at 2.4 GHz and 11 dBi at 5 GHz, N-type (female), dual-band directional antenna
ANT-WDB-ONF-0709	7 dBi at 2.4 GHz or 9 dBi at 5 GHz, N-type (female), dual-band, omnidirectional antenna
ANT-WDB-ANM-0306	3 dBi at 2.4 GHz or 6 dBI at 5 GHz, N-type (male), omnidirectional antenna
MAT-WDB-PA-NF-2-0708	2.4/5 GHz, panel antenna, 7/8 dBi, MIMO 2x2, N-type (female)
ANT-WDB-ANM-0502	5 dBi at 2.4 GHz or 2 dBI at 5 GHz, N-type (male), omnidirectional antenna
Wireless Antenna Cables
A-CRF-NMNM-LL4-900	N-type (male) to N-type (male) LMR-400 Lite cable, 9 m
A-CRF-NMNM-LL4-600	N-type (male) to N-type (male) LMR-400 Lite cable, 6 m
A-CRF-NMNM-LL4-300	N-type (male) to N-type (male) LMR-400 Lite cable, 3 m
Surge Arrestors
A-SA-NMNF-02	0 to 6 GHz, N-type (male) to N-type (female) surge arrester
A-SA-NFNF-02	0 to 6 GHz, N-type (female) to N-type (female) surge arrester
Wireless Terminating Resistors
A-TRM-50-NM	50-ohm termination resistor with N-type male connector
Wall-Mounting Kits
PK-DC2DOF	Pole mounting kit
PK-DC2DOF-02	PK-DC2DOF-02
Wireless Connector Caps
A-CAP-M12M-M	Metal cap for M12 male connector