900 MHz Band Wireless I/O (for use in the US)
WL40F Series

900 MHz Band Wireless I/O (for use in the US) WL40F Series

Licence-free 900 MHz ISM band
FCC Part 15 compliant wireless module*

  • Modbus-RTU transparent gateway and I/O
  • Multi-hop technology solves various challenges of implementing a reliable wireless communication network.
  • Supporting of low-speed moving devices makes the WL40F Series ideal for data gathering for AGVs.
  • 900 MHz ISM Band
  • FCC Part 15 compliant

* This device is approved for use only in the US.

* Signal strength site survey is required before introducing wireless modules.

The WL40F Series Wireless I/O System employs a licence-free 900 MHz ISM band module. Compared with 2.4 GHz / 5 GHz wireless LANs and other wireless networks dedicated for instrumentation using higher frequency bands, the 900 MHz band ensures stable communication quality for a long distance transmission, suitable for telemetering, multiplex transmission systems and data logging applications with various sensors/devices including low-speed moving entities.

Modbus-RTU transparent devices can easily replace existing wired ones, and various industry standard sensors/devices can be added to the network.

Multi-hop Technology

Multi-hop wireless communication is a wireless network conveying data through a number of wireless communication devices in a "bucket-brigade" manner.
Relaying paths are automatically switched to an alternative one when one section of the connection is weak.
In the WL40F Series, up to 100 child stations connect to a single parent station. The communications distance between stations can be up to 0.62 miles (1 km), thus making it possible to construct a wireless network in a wide range.

Multi-hop Technology
System Configuration Example

System Configuration Example

Dimensions unit: mm (inch)

Dimensions unit: mm (inch)

900 MHz Band Wireless Remote I/O (for use in the US)
R3 Series

900 MHz Band Wireless Remote I/O (for use in the US) R3 Series

R3-NMW1F

Licence-free 900 MHz ISM band
FCC Part 15 compliant wireless module*

Modbus Interface Module (Model: R3-NMW1F)

  • Converting Modbus-RTU protocol into the 900 MHz band radio protocol and vice versa.
  • Wide selection of R3 Series I/O modules can be freely combined.
  • 900 MHz ISM Band
  • FCC Part 15 compliant

* This device is approved for use only in the US.
* Signal strength site survey is required before introducing wireless modules.

System Configuration Example
When Gateway Function is Enabled

With PC as Modbus/Master, communicates with slave devices via wireless module using Modbus/TCP and RTU protocol.
Also, Gateway function allows to communicate with slave devices connected in multi-drop configuration with wired network, using Modbus and RTU protocol.

System Configuration Example

Other 900 MHz ISM Band Wireless Products

Wireless Tower Light (FCC Part 15 compliant wireless module)   More

* This device is approved for use only in the US.

Wireless Tower Light (FCC Part 15 compliant wireless module)


920 MHz Band Wireless I/O (for use in Thailand)
WL40TH Series

920 MHz Band Wireless I/O (for use in Thailand) WL40TH Series

Licence-free 920 MHz ISM band
NBTC, Thailand Radio Waves Act wireless module*

  • Modbus-RTU transparent gateway and I/O
  • Multi-hop technology solves various challenges of implementing a reliable wireless communication network.
  • Supporting of low-speed moving devices makes the WL40TH Series ideal for data gathering for AGVs.
  • 920 MHz ISM Band
  • NBTC, Thailand Radio Waves Act

* This device is approved for use only in Thailand.
* Signal strength site survey is required before introducing wireless modules.

The WL40TH Series Wireless I/O System employs a licence-free 920 MHz ISM band module. Compared with 2.4 GHz / 5 GHz wireless LANs and other wireless networks dedicated for instrumentation using higher frequency bands, the 920 MHz band ensures stable communication quality for a long distance transmission, suitable for telemetering, multiplex transmission systems and data logging applications with various sensors/devices including low-speed moving entities.

Modbus-RTU transparent devices can easily replace existing wired ones, and various industry standard sensors/devices can be added to the network.

Multi-hop Technology

Multi-hop wireless communication is a wireless network conveying data through a number of wireless communication devices in a "bucket-brigade" manner.
Relaying paths are automatically switched to an alternative one when one section of the connection is weak.
In the WL40TH Series, up to 100 child stations connect to a single parent station. The communications distance between stations can be up to 0.62 miles (1 km), thus making it possible to construct a wireless network in a wide range.

Multi-hop Technology
System Configuration Example

System Configuration Example

Dimensions unit: mm (inch)

Dimensions unit: mm (inch)

920 MHz Band Wireless I/O (for use in Vietnam)
WL40VN Series

920 MHz Band Wireless I/O (for use in Vietnam) WL40VN Series

Licence-free 920 MHz ISM band
QCVN 47: 2015 / BTTTT
QCVN 96: 2015 / BTTTT wireless module*

  • Modbus-RTU transparent gateway and I/O
  • Multi-hop technology solves various challenges of implementing a reliable wireless communication network.
  • Supporting of low-speed moving devices makes the WL40VN Series ideal for data gathering for AGVs.
  • 920 MHz ISM Band
  • QCVN 47: 2015 / BTTTT QCVN 96: 2015 / BTTTT

* This device is approved for use only in Vietnam.
* Signal strength site survey is required before introducing wireless modules.

The WL40VN Series Wireless I/O System employs a licence-free 920 MHz ISM band module. Compared with 2.4 GHz / 5 GHz wireless LANs and other wireless networks dedicated for instrumentation using higher frequency bands, the 920 MHz band ensures stable communication quality for a long distance transmission, suitable for telemetering, multiplex transmission systems and data logging applications with various sensors/devices including low-speed moving entities.

Modbus-RTU transparent devices can easily replace existing wired ones, and various industry standard sensors/devices can be added to the network.

Multi-hop Technology

Multi-hop wireless communication is a wireless network conveying data through a number of wireless communication devices in a "bucket-brigade" manner.
Relaying paths are automatically switched to an alternative one when one section of the connection is weak.
In the WL40VN Series, up to 100 child stations connect to a single parent station. The communications distance between stations can be up to 0.62 miles (1 km), thus making it possible to construct a wireless network in a wide range.

Multi-hop Technology
System Configuration Example

System Configuration Example

Dimensions unit: mm (inch)

Dimensions unit: mm (inch)

920 MHz Band Wireless I/O (for use in Taiwan)
WL40TW Series

920 MHz Band Wireless I/O (for use in Taiwan) WL40TW Series

Licence-free 920 MHz ISM band
NCC Taiwan Radio Wave Regulatory*

  • Modbus-RTU transparent gateway and I/O
  • Multi-hop technology solves various challenges of implementing a reliable wireless communication network.
  • Supporting of low-speed moving devices makes the WL40TW Series ideal for data gathering for AGVs.
  • 920 MHz ISM Band
  • NCC Taiwan Radio Wave Regulatory

* This device is approved for use only in Taiwan.
* Signal strength site survey is required before introducing wireless modules.

The WL40TW Series Wireless I/O System employs a licence-free 920 MHz ISM band module. Compared with 2.4 GHz / 5 GHz wireless LANs and other wireless networks dedicated for instrumentation using higher frequency bands, the 920 MHz band ensures stable communication quality for a long distance transmission, suitable for telemetering, multiplex transmission systems and data logging applications with various sensors/devices including low-speed moving entities.

Modbus-RTU transparent devices can easily replace existing wired ones, and various industry standard sensors/devices can be added to the network.

Multi-hop Technology

Multi-hop wireless communication is a wireless network conveying data through a number of wireless communication devices in a "bucket-brigade" manner.
Relaying paths are automatically switched to an alternative one when one section of the connection is weak.
In the WL40TW Series, up to 100 child stations connect to a single parent station. The communications distance between stations can be up to 0.62 miles (1 km), thus making it possible to construct a wireless network in a wide range.

Multi-hop Technology
System Configuration Example

System Configuration Example

Dimensions unit: mm (inch)

Dimensions unit: mm (inch)

Other Wireless Products

Wireless LAN Tower Light (for use in all EU member countries)   More

* This device is approved for use in all EU member countries. Consult us for use in other countries.

Wireless LAN Tower Light (for use in all EU member countries)