Dow-Key Microwave Corp. - Ventura, CA
Manufacturer, Custom Manufacturer
ISO 9001:2000 & AS 9100 certified custom manufacturer of switching relay matrices for commercial, military communication systems, air traffic control, medical equipment, cellular, wireless & aerospace applications. Matrices switching relays are available in full rack enclosure with N & BNC connectors. Switching relay matrices are also suitable for PCS, PCN, GPS, 2-way & paging radio, test equipment, commercial airlines & satellite communication. Meets MIL-Q-9858A/MIL-I-45208 standards. RoHS compliant.
www.dowkey.com/_upload/DowKeyCatalog.pdf

Cytec Corp. - Penfield, NY
Manufacturer
Manufacturer of relay switching matrices. Various features include modules, BNC connectors, chassis, front panel LED displays and manual controls. Switching matrices are suitable for LCR meters, data recorders, communications, cable testing and environmental chambers applications. Custom and semi-custom configurations available. Five year warranty.
www.cytec-ate.com/series/GX-series.html

HBcontrols, Inc. - Fall River, MA
Manufacturer, Custom Manufacturer
Solid state relays & assemblies, DIN rail mountable, rated to 100 AMPs, AC or DC control, single or three phase.

Ars Products - Woodstock, CT
Distributor
Supplier Of Radio Frequency (Rf) Signal Distribution & Switching Equipment As Well As Specialized Beamsteering & Beamforming Equipment.

Info-Lite Corp. - Indianapolis, IN
Manufacturer, Custom Manufacturer
Manufacturers & designers of digital instruments & systems: serial interface displays, digital meters, counters, clocks & timers. Custom numeric & alpha numeric display systems. Programming/switching products & systems: matrix pinboards. Backlit indicators.

In-Phase Technologies, Inc. - Bordentown, NJ
Manufacturer, Custom Manufacturer, Service Company
Custom manufacturer of test equipment parts & components including relay switching matrices. Other products such as software, interface devices, test fixtures, light-wave components, sub-systems, assemblies & hardware are also fabricated. Capabilities include design engineering, prototyping, assembling, inspection, calibration & testing. Products are ISO 9001 & NHB 5300(1C) compliant & MIL-I-45208A certified.

Crydom - San Diego, CA
Manufacturer
Manufacturer of relay switching matrices.

Digalog Systems, Inc. - New Berlin, WI
Manufacturer, Custom Manufacturer, Service Company
ISO 9001:2008 certified manufacturer of LAN based relay matrices. Types include 8 bus switches matrices, differential A/B switches & 4 bus switching matrices. Matrices are housed in 2u 19 in. rack-mounted chassis. Relay channels can carry up to 1.0A with 150VDC/100VAC off-state isolation.

Information Transfer, Inc. - Ridgewood, NJ
Manufacturer
Scanners, Switching Systems: Electromechanical, Optomechanical, VXI Bus Switches

Correctional Electronics Supply, Inc. - La Fayette, GA
Custom Manufacturer, Service Company
Designers of control panels including relay panels. Other products include relay switching matrices & commercial & detention industrial control panels. Control panels can be used to control doors, gates, lights, fans, telephone & ventilation systems. Panels can also be integrated to work with any security system such as fire alarm, perimeter control & CCTV. Product can be wired to PLC or directly to relays & devices in the field. Product layouts & switches are color coded to represent conventional functionalities; switch colors include red, yellow, black, blue & green for color-coding of various functions. Panels may contain electronic or other custom controls. Control panels are custom made to meet any spec including wall & desk mounts.