| • WLAN Interface | 
| Standards | IEEE 802.11a/b/g for Wireless LAN IEEE 802.11i for Wireless Security
 IEEE 802.3 for 10BaseT
 IEEE 802.3u for 100BaseTX
 IEEE 802.3af for Power-over-Ethernet*
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| Note | *Hardware Rev. 3.0.0 supports PoE; hardware Rev. 2.0.0 does not support PoE. | 
| Spread Spectrum and Modulation (typical) | • DSSS with DBPSK, DQPSK, CCK • OFDM with BPSK, QPSK, 16QAM, 64QAM
 • 802.11b: CCK @ 11/5.5 Mbps, DQPSK @ 2 Mbps,
 DBPSK @ 1 Mbps
 • 802.11a/g: 64QAM @ 54/48 Mbps, 16QAM @ 36/24 Mbps,
 QPSK @ 18/12 Mbps, BPSK @ 9/6 Mbps
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| Operating Channels (central frequency) | US: 2.412 to 2.462 GHz (11 channels)
 5.18 to 5.24 GHz (4 channels)
 5.26 to 5.825 GHz (optional)
 EU:
 2.412 to 2.472 GHz (13 channels)
 5.18 to 5.24 GHz (4 channels)
 5.26 to 5.825 GHz (optional)
 *Special bands, such as 5.9 GHz, are customizable.
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| Security | • SSID broadcast enable/disable • Firewall for MAC/IP/Protocol/Port-based filtering
 • 64-bit and 128-bit WEP encryption, WPA/WPA2-Personal and Enterprise (IEEE 802.1X/RADIUS, TKIP, and AES)
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| Transmission Rates | 802.11b: 1, 2, 5.5, 11 Mbps 802.11a/g: 6, 9, 12, 18, 24, 36, 48, 54 Mbps
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| TX Transmit Power | AWK-3121-M12-RTG and AWK-3121-SSC-RTG: 802.11b:
 Typ. 23±1.5 dBm @ 1 to 11 Mbps
 802.11g:
 Typ. 20±1.5 dBm @ 6 to 24 Mbps, Typ. 19±1.5 dBm @ 36 Mbps, Typ. 18±1.5 dBm @ 48 Mbps, Typ. 17±1.5 dBm @ 54 Mbps
 802.11a:
 Typ. 18±1.5 dBm @ 6 to 24 Mbps, Typ. 16±1.5 dBm @ 36 to 48 Mbps, Typ. 15±1.5 dBm @ 54 Mbps
 AWK-3121-M12-HP-RTG:
 802.11b:
 Typ. 26±1.5 dBm @ 1 to 11 Mbps
 802.11g:
 Typ. 26±1.5 dBm @ 6 to 24 Mbps, Typ. 25±1.5 dBm @ 36 Mbps, Typ. 24±1.5 dBm @ 48 Mbps, Typ. 23±1.5 dBm @ 54 Mbps
 802.11a:
 Typ. 26±1.5 dBm @ 6 to 24 Mbps, Typ. 25±1.5 dBm @ 36 Mbps, Typ. 24±1.5 dBm @ 48 Mbps, Typ. 23±1.5 dBm @ 54 Mbps
 | 
| RX Sensitivity | 802.11b: -97 dBm @ 1 Mbps, -94 dBm @ 2 Mbps, -92 dBm @ 5.5 Mbps, -90 dBm @ 11 Mbps
 802.11g:
 -93 dBm @ 6 Mbps, -91 dBm @ 9 Mbps, -90 dBm @ 12 Mbps, -88 dBm @ 18 Mbps, -84 dBm @ 24 Mbps, -80 dBm @ 36 Mbps, -76 dBm @ 48 Mbps, -74 dBm @ 54 Mbps
 802.11a:
 -90 dBm @ 6 Mbps, -89 dBm @ 9 Mbps, -89 dBm @ 12 Mbps, -85 dBm @ 18 Mbps, -83 dBm @ 24 Mbps, -79 dBm @ 36 Mbps, -75 dBm @ 48 Mbps, -74 dBm @ 54 Mbps
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| • Protocol Support | 
| General Protocols | Proxy ARP, DNS, HTTP, HTTPS, IP, ICMP, SNTP, TCP, UDP, RADIUS, SNMP, PPPoE, DHCP | 
| • Interface | 
| Connector for External Antennas | AWK-3121-SSC-RTG: RP-SMA (female) AWK-3121-M12-RTG and AWK-3121-M12-HP-RTG: QMA (female)
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| Fiber Ports | 1, 100BaseFX port (SC connector, AWK-3121-SSC-RTG only) | 
| M12 Ports | 1, 10/100BaseT(X) auto negotiation speed, D-coded, F/H duplex mode, and auto MDI/MDI-X connection (AWK-3131A-M12-RTG only) | 
| Console Port | RS-232 (RJ45-type) | 
| LED Indicators | PWR1, PWR2, PoE*(support for PoE discontinued starting with hardware Rev. 2.0.0), FAULT, STATE, signal strength, CLIENT MODE, WLAN, 10/100 (M12 port), 100M (fiber port) *PoE is only available for the AWK-3121-M12-RTG and AWK-3121-M12-HP-RTG
 | 
| Alarm Contact | 1 relay output with current carrying capacity of 1 A @ 24 VDC | 
| Digital Inputs | 2 electrically isolated inputs • +13 to +30 V for state “1”
 • +3 to -30 V for state “0”
 • Max. input current: 8 mA
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| Default Antennas* | 2 dual-band omni-directional antennas, 2 dBi, RP-SMA (male) *Only available with the AWK-3121-SSC-RTG models.
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| • Optical Fiber* | 
|  |  | 
| • Physical Characteristics | 
| Housing | Metal, IP30 protection | 
| Weight | 850 g (1.87 lb) | 
| Dimensions | 53 x 135 x 105 mm (2.08 x 5.31 x 4.13 in) | 
| Installation | DIN-rail mounting, wall mounting (optional) | 
| • Environmental Limits | 
| Operating Temperature | Standard Models: -25 to 60°C (-13 to 140°F) Wide Temp. Models: -40 to 75°C (-40 to 167°F)
 | 
| Storage Temperature | -40 to 85°C (-40 to 185°F) | 
| Ambient Relative Humidity | 5% to 95% (non-condensing) | 
| • Power Requirements | 
| Input Voltage | 12 to 48 VDC, redundant dual DC power inputs or 48 VDC Power-over-Ethernet (IEEE 802.3af compliant) (support for PoE discontinued starting with hardware Rev. 2.0.0) | 
| Input Current | 0.5 A @ 12 VDC; 0.2 A @ 48 VDC | 
| Connector | 10-pin removable terminal block | 
| Reverse Polarity Protection | Present | 
| • Standards and Certifications | 
| Safety | UL 60950-1, IEC 60950-1(CB) | 
| EMC | EN 55032/24 | 
| EMI | CISPR 32, FCC Part 15B Class B | 
| EMS | IEC 61000-4-2 ESD: Contact: 8 kV; Air: 15 kV IEC 61000-4-3 RS: 80 MHz to 1 GHz: 20 V/m
 IEC 61000-4-4 EFT: Power: 2 kV; Signal: 2 kV
 IEC 61000-4-5 Surge: Power: 2 kV; Signal: 2 kV
 IEC 61000-4-6 CS: 10 V
 IEC 61000-4-8
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| Radio | EN 301 489-1/17, EN 300 328, EN 301 893, FCC ID SLE-WAPA003 (AWK-3121-M12-RTG), FCC ID SLE-WAPA004 (AWK-3121-M12-HP-RTG) | 
| Rail Traffic | EN 50155*, EN45545-2, EN 50121-4 *Complies with a portion of EN 50155 specifications.
 | 
| • MTBF (mean time between failures) | 
| Time | AWK-3121-M12-RTG: 480,831 hrs AWK-3121-M12-HP-RTG: 447,861 hrs
 AWK-3121-SSC-RTG: 445,913 hrs
 | 
| Standard | Telcordia SR332 |