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BIU 1200 Series

Exceeds NEMA TS2-2003 requirements for Bus Interfa...

The BIU-1200 Series Bus Interface Unit (BIU) interfaces 24 V logic signals to the SDLC serial bus in a TS 2 cabinet. The BIU interfaces between the Controller Unit and the Loop Detector Racks, Terminals and Facilities, and other devices in a NEMA TS-2 Cabinet ...
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Model 242L

CALTRANS DC Isolator

The Model 242L is a two channel DC Isolator designed to meet or exceed Chapter 5 Section 4 of the Caltrans Specification TEES 2009 and Errata #2 (12/2014). The 242L provides isolation between a VDC input circuit (external electrical switch closure) and the...
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Model 242 DC Isolator

DC Isolator

The Model 242 is designed to meet and exceed the specifications in Chapter 5, section 4, of the Caltrans Transportation Electrical Equipment specifications (TEES) dated 08/16/02. Section 4 specifies the requirements for a two channel DC isolator to provide iso...
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Model LS-200 Load Switch, Solid State

Designed to meet or exceed NEMA Standards TS 1-199...

The Model LS-200 Load Switch exceeds industry standards by featuring two LED indicators per individual circuit (one for the input, one for the output). This feature provides a means of quickly and accurately conveying information regarding the input and output...
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Model FL-200 Flasher, Solid State

Meets or exceeds NEMA Standards TS1-1994 & TS 2-19...

Model FL-200 Flashers are dual circuit, solid state devices that are constructed with extruded aluminum exterior components which promote rapid heat dissipation to ensure lower operating temperatures and dependable long term operation. All internal c...
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Model TR-200 Flash Transfer Relay

Meets or exceeds NEMA Standard TS2-2003

Model TR-200 Flash Transfer Relays are constructed with a transient suppressed full wave rectified coil to provide chatter free operation in brownout conditions down to 89 VAC. The rectified coil provides lower power consumption than conventional AC coils. A r...
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Model BIU/2 (half-width faceplate)

Bus Interface Unit

The BIU/2 is a rack module that interfaces 24 V logic I/O signals to the SDLC serial bus of TS2 cabinets. All TS2 Type 1 cabinets and TS2 Type 2 cabinets require a BIU when controller I/O is via the SDLC bus instead of connectors via A, B, and C. A 64-pin, mal...