Tel/Fax Line Filters

Anechoic Chamber
Shielded Room
Shielded Rack/Box
HEMP Protection
EV Driving System

EMC Anechoic Chamber

An EMC/RF anechoic chamber is a room designed to completely absorb reflections of electromagnetic waves. They are also often isolated from microwaves entering from their surroundings. This combination means that a device exclusively receives direct waves (no reverberation waves), in effect simulating being inside an infinitely large room.

RF Shielded Room / TEMPEST

RF Shielded rooms provide the necessary RF quiet environment in which to conduct many different application tests such as EMC, wireless technology on automotive or military vehicles, MRI scans, etc. These rooms are built with Smart shield TM modular RF shielding, electromagnetic pulse protection EMPP shielding TEMPEST (secure communications) shielding and architectural shielding full systems.

RF Shielded Rack/Box

RF Shielded racks/boxes are RF shielded enclosures for information security/interference or small devices testing inside. Usually they require lower attenuation than shielded rooms and anechoic chambers.WEMC filters for Shielded Rack/Box are designed specifically for compact applications, usually less weight and low leakage.

HEMP Protection

Electromagnetic pulse (EMP), also sometimes called a transient electromagnetic disturbance, is a short burst of electromagnetic energy. Such a pulse's origin may be a natural occurrence or man-made and can occur as a radiated, electric, or magnetic field or a conducted electric current, depending on the source.

EV Driving System

With EV/PHEV are getting more and more popular, related standards have been set increasingly, EMI has become a non-negligible issue with the driving system. WEMC offers filters for electric driving system, including Wuling, Hezhong, Tianji…etc., many famous car brands in China are equipped by WEMC filters.

This series of signal filters are used for Tel/Fax lines.

Applications

This series of signal filters are used for telephone, data communication, control and fire alarm.

All WEMC signal line filters are tested under the following standards and meet or exceed the performance and safety criteria defined by these standards:

Mil-F-15733
Mil-Std-220C
CISPR17:2011
UL1283
LVD 2014/35/EU

Characteristics

Type	Rated voltage	Rated current	Outline drawing	Band pass	Typical applications
SF-T2	250VDC	2x0.3A	1	0-20kHz	Telephone, fax and AC/DC switch signal
SF210-1	250VAC	2x1A	1	0-100kHz	Control signal
SF203-1	100VDC	2x1A	1	0-6MHz	Special fire alarm
SF103-1	100VDC	1x1A	2	0-6MHz	Video signal
SF-LAN100	250VAC		3		Network signal

Note: Above signal filters are in compliance with standards specified by National Military Class C and D shielded room and anechoic chamber.

Please specify number of control line and current volume if control lines are more than 2 or current is bigger than 1A.

Expect Results

Consultant Service

EMC Anechoic Chamber

RF Shielded Room / TEMPEST

RF Shielded Rack/Box

HEMP Protection

EV Driving System

Cable glands on WEMC filters