IGX MOD37 Industrial Dual-Band Module  Solution Overview

The IGX MOD37 Industrial Dual-Band Module brings the power-optimized design and extended range of the TI WL1837MOD WiLink™ 8 chipset together with the industry-leading IGX advanced wireless driver to deliver the most powerful, flexible, and integrated WiLink platform available.
As part of the IGX Intelligent Roaming Solutions portfolio, the IGX MOD37 supports multiple hardware, software, and operating systems giving you the flexibility for the most demanding applications. The IGX advanced wireless driver provides fast, seamless roaming along with tight security features to unleash the power of the TI WiLink™ 8 chipset in a unified, industrial-grade solution. A wide range of industries including Internet of Things (IoT), manufacturing, distribution and warehousing, smart gateway and metering, and even security can all benefit from the advanced features the IGX MOD37 delivers.

    Key Features

  • High-performance Wi-Fi
  • Dual Band, 2×2 MIMO (2.4 GHz), BT, and BLE
  • 20- and 40-MHz channels
  • 802.11 b/g/n 2.4-GHz Radio/Baseband/MAC
  • Intelligent cross-band roaming
  • Integrated PA and LNA
  • Up to 110 Mbps (UDP) of throughput
  • MRC for extended range of 1.4 × (2.4 GHz)
  • Station and soft access points
  • Wi-Fi direct multi-channel multi-role
  • Personal and enterprise security
  • Cisco Compatible Extensions (CCX) v4

  • Dual-mode Bluetooth
  • Bluetooth and BLE (BT 4.0 compliant)
  • On-chip SBC encode and decode
  • Royalty-free certified stack from StoneStreet One
  • Wi-Fi/Bluetooth single antenna co-existence
  • Power management, advanced low-power modes
  • Host interfaces
  • Easy-to-use configuration GUI
  • Direct connection to battery (integrated DC2DC)
  • SDIO for Wi-Fi and UART for BT
  • Industrial temperature grade
  • Small form factor

Wireless Innovation – Only From Intelligraphics

Seamless, Intelligent Roaming
The IGX MOD37 Industrial Dual-Band Module provides advanced wireless features demanded by the market that not available in other solutions. IGX intelligent roaming changes the way wireless roaming is delivered by providing a vastly improved end-user experience. Pre-emptive signal loss detection and scan optimization greatly reduce the time needed for reconnection down to less than 100 milliseconds, ensuring the module select the optimal access point (AP). Intelligent roaming helps prevent the network stack and applications from detecting a network drop, thus improving overall application reliability and Quality of Service (QoS).

Include IGX custom configuration GUI to suit the deployment
• Roaming and scan parameters configurations
• Radio Type selection
• Power save mode configurations
• Data rates tuning

Electrical, Mechanical, and Thermal Specifications

Feature OS Support  WEC7, WinCE 6.0, Linux™, Android™ OS)
802.11 a,b,g,n, 2X2 MIMO All
STA Mode All
AP Mode Linux™ and Android™ OS only
P2P Mode Linux™ and Android™ OS only
WPS (WiFi Protected Setup) Linux™ and Android™ OS TBD
Power save modes (CAM, PSP, UAPSD) All
Security – Open All
Security – WPA2-Enterprise All
Security – WPA2-Personal All
PMK-Caching All
Opportunistic PMK-Caching All

Seamless Intelligent Roaming

Background scan optimizations

  • List of channels to scan
  • Scan Interval (if 0 do not do background scan)
  • Only return roaming candidates that meet certain minimum requirements (for example, a minimum RSSI

Background scan triggers

  • Triggers based on background scan on detection of weak RSSI from current connection and on detection of consecutive number of missed beacons exceeding the threshold value.
  • Implementation of triggering background scan on Data-rate dropping below configured threshold.

Roaming triggers

  • Triggers based on data rate, RSSI, missed beacons, and retries.

AP selection criteria

  • AP selection based on signal strength, channel load, and hysteresis (stickiness) to avoid AP ping pong effect.

Dynamic data rate tuning

  • Dynamic data rate tuning that uses signal strength and lost data packet threshold

Connection maintenance

  • The client will send a periodic keep alive to prevent an idle timeout on the AP (0-300 sec period, 0 means no keep alive).
  • The driver will not send a “Disconnect notification” event to the OS during the roaming process.
  • The driver will not send a “Disconnect notification” event to the OS during a configurable interval of time (0-10 sec) after disassociating from the AP.

IGX  CCXv4 Support

Key Features

  •  AP-assisted roaming (Mobility)
  •  Fast 802.1X re-authentication using CCKM (Mobility)
  • AP-specified maximum client transmit power (Management)
  • Radio measurent
  • CCX IE support
  • Traffic stream metrics
  •  Call admission control



IGX Configuration UI

  • CCX enable/disable
  • CCX QOS parameters
  • CCX test triggers
  • CCKM configurations

Pre-Certification Testing

  • Wi-Fi Alliance*
  •  CCXv4*

*3rd party lab fees are NOT included and must be paid directly by the customer


Additional Security

Security WEC7 WinCE 6.0 Linux Android
Enterprise Security (802.1x) EAP-TTLS EAP-TTLS PEAP-TLS PEAP-TLS
*Included only with CCXv4. Additional Security parameters are configured via the IGX Configuration UI

Regulatory Certificates for TI Modules

Category Supported Item
Regulatory Certificates FCC
Japan MKK
DFS DFS Supported

Regulatory Domains

  • FCC
  • ETSI
  • KCC
  • Worldwide

High Level Block Diagram IGX MOD37 Industrial Dual-Band Module

Intelligraphics IGX MOD37 Specifications

General Description
Dimensions 13.4 × 13.3 × 2 mm
Mounting Type Surface Mount
Package/Case Module
Packaging Tape and Reel (TR)
Operating Temperature – 20° C to +70° C
Antenna Type Integrated, Chip
Supply Voltage 2.9 V ~ 4.8 V
Receiving Current 79 mA ~ 85 mA
Transmitting Current 420 mA
Output power 17.3 dBm ~ 18.5 dBm
Sensitivity -96.3 dBm
Data Rate 54 Mbps ~ 100 Mbps
Serial Interface UART
Operating Systems WEC7, WinCE 6.0, Linux™, and Android™ OS
Device Drivers Linux™ and Android™

For detailed electrical, mechanical, and thermal specifications, see the TI WL1837MOD WiLink™ 8 datasheet located at: