Train-to-Ground WAC-2004 Moxa vietnam

Features & Benefits

  • 2-in-1 AP controller and mobile IP home agent
  • Millisecond-level controller-based Turbo Roaming
  • IEEE 802.11i-compliant wireless security
  • Layer-3 mobile IP technology
  • Up to 450 Mbps throughput for tunneling
  • Scalable tunneling capacity


The goal of zero-latency roaming is to allow clients to seamlessly maintain their communications as they move from one access point to another. The advanced Moxa Wireless Access Controller, the WAC-2004, together with Controller-based Turbo Roaming technology, enables millisecond-level roaming over different IP subnets. The
advanced roaming algorithm along with Mobile IP technology allows wireless client to roam between APs in different IP subnets within milliseconds while upholding stringent security in extremely demanding environments. The WAC-2004 is rated to operate at temperatures of 0 to 50°C and is rugged enough for on-site installation in any harsh industrial environment.

Maximum Availability 

  • Device-level redundancy via hot standby controller

Minimum Handover Time

  • Millisecond-level Turbo Roaming
  • Inter-controller roaming

Maximum Mobility in L3 Networks

  • Mobile IP tunneling
  • Care-of-Address (CoA) assignment
  • Cross layer 3 subnet roaming

White Paper:

Truly Uninterrupted Train-to-Ground Communications with Sub-50 ms Turbo RoamingDownload

The architecture of 802.11 ground to train data communications requires technology that can provide uninterrupted data streams for the onboard requirements. This white paper discusses the solutions to maintain seamless connectivity at high speeds through such technology as Moxa’s Turbo Roaming deployed with Wireless Access Controllers (WACs), specialized handoff parameters that can be effectively tweaked, and multiple redundancy measures to provide failsafe data links. 

WLAN Interface
Standards IEEE 802.11i for Wireless Security
IEEE 802.3 for 10Base5
IEEE 802.3u for 10/100BaseT(X)
IEEE 802.3ab for 1000BaseT
Security WPA/WPA2-Personal and Enterprise (IEEE 802.1X/RADIUS, TKIP, and AES)
Supported Models • AWK-RTG series
• Customized AWK series products
• TAP-6226
LAN Port 10/100/1000BaseT(X), auto negotiation speed (RJ45-type)
• P1: communication port for WAC/HA
• P2-4: reserved
Console Port RS-232 (DB9-type, male)
• Serial signals: TxD, RxD, DTR, DSR, RTS, CTS, DCD, GND
LED Indicators PWR1, PWR2, FAULT, STATE, 100M x 4, 1000M x 4
Wireless Access Control
AP Support AWK-RTG series, TAP-6226, WAC-1001
WAC Failover 1-on-1 hot backup
Roaming Support single/multi-channel roaming (up to 3 channels), inter-controller roaming
Handover Time millisecond-level with wireless security
Mobile IP Tunneling
Tunneling home agent to mobile node
Tunneling Capacity up to 450 Mbps
CoA Assignment WAC-based management
HA failover 1-to-1 hot backup
Device Management Web console, Telnet, and SSH access
Remote Management External management utility and SNMP support
Network Monitoring AP/Client connection status monitoring
Physical Characteristics
Housing SECC sheet metal (1 mm)
Weight 5480 g (12.08 lb)
Dimensions 440 x 44 x 325 mm (17.32 x 1.73 x 12.80 in) (without rackmount ears)
Installation Standard 19-inch rackmount
Environmental Limits
Operating Temperature 0 to 50°C (32 to 122°F)
Storage Temperature -40 to 85°C (-40 to 185°F)
Ambient Relative Humidity 5 to 95% (non-condensing)
Power Requirements
Input Voltage 100 to 240 VAC
Input Current 1.2 A @ 100 VAC
Standards and Certifications
Safety UL 60950-1
EMC EN 55032/24, EN 61000-6-2/6-4, EN 61000-3-2/3-3
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: 4 kV; Signal: 2 kV
IEC 61000-4-5 Surge: Power 2 kV; Signal: 1 kV
IEC 61000-4-6 CS: 10 V
IEC 61000-4-8
Green Product RoHS, CRoHS, WEEE
MTBF (mean time between failures)
Time 383,478 hrs
Standard Telcordia SR332
Warranty Period 3 years