WiFi Surge Protection: Eliminates deaf effect of WiFi outdoor applications

Why RF Surge Protection of 802.11 Modules is Important for WiFi Outdoor Applications?

A voltage spike is a momentary extreme burst of electricity in an electrical circuit. This energy spike may be short-lived and rarely last more than a few microseconds, but could still be enough to seriously damage a typical Wi-Fi module and causes costly interruptions or deaf effect. Wireless Internet Service Providers (WISP) or Hotspot Operators have noticed that ESD and power surge events pose a serious threat to the reliability of 802.11 modules and take costly steps to add additional after-market external surge protection devices to reduce this threat. Once the failure occurred, the 802.11 WiFi module becomes permanently damaged with approximately 20-25dB of signal loss in both Tx and Rx.

Unex’s 802.11 WiFi Modules with Built-in RF ESD/Surge Protection Design

An innovative quarter-wavelength shorted line is designed in Unex’s 802.11 WiFi modules to provide the most rugged available protection for RF signals over ESD/power surge events to reduce downtime and increase system stability by eliminating the most common cause of failures in WiFi outdoor applications.

WiFi mini-PCI

DNMA-H92:

extended-temperature high-power 802.11n a/b/g wifi 2x2 mini-PCI module w/ESD and Surge Protection, AR9220

DNMA-H5:

Industrial-grade, high-power 802.11n a/b/g wifi 3x3 mini-PCI module w/ESD and Surge Protection, AR9160-BC1B+AR9106

DCMA-86P2:

industrial grade, high power 5.86~5.92GHz wifi mini-PCI module for 802.11p/DSRC application, AR5414A-B2B

DCMA-85:

Industrial-grade, high-power 4.9GHz wifi mini-PCI module w/ESD and Surge Protection, AR5414A-B2B

DCMA-86:

Industrial-grade, high-power 802.11a wifi mini-PCI module w/ESD and Surge Protection, AR5414A-B2B

DCMA-86II:

Industrial-grade, high-power 5.725~5.875GHz wifi mini-PCI module w/ESD and Surge Protection, AR5414A-B2B

DCMA-86III:

Industrial-grade, high-power 5.47~5.725GHz wifi mini-PCI module w/ESD and Surge Protection, AR5414A-B2B

WiFi PCIe mini card

DNXA-H1:  

802.11n a/b/g wifi 3x3 3-stream PCIe mini card, XB114/AR9390