Oriux Bus Interface Unit (BIU)$0.00
Oriux Bus Interface Unit (BIU)
The Oriux TS2 NEMA Bus Interface Unit (BIU) is a rack-mounted, modular-by-function device engineered for seamless integration into a variety of traffic control applications. Its primary purpose is to interface 24 VDC logic-based inputs and outputs (I/O) with the Synchronous Data Link Control (SDLC) serial bus used in TS2 traffic signal cabinets. This design enables efficient communication and control between cabinet components and the controller.
The Controller Unit functionality in a Type 1 — and some Type 2 — configurations is interfaced with the TS-2 cabinet through the BIUs. This functionality includes controlling all load switch outputs, detector inputs and resets, as well as functions previously accessed via TS-1 A, B, and C connectors and/or additional I/O (MSD).
The Controller Unit functionality in a Type 1 — and some Type 2 — configurations is interfaced with the TS-2 cabinet through the BIUs. This functionality includes controlling all load switch outputs, detector inputs and resets, as well as functions previously accessed via TS-1 A, B, and C connectors and/or additional I/O (MSD).
Role in TS2 Cabinet Configurations
In Type 1 and select Type 2 TS2 cabinet configurations, the BIU serves as the critical link between the Controller Unit and the cabinet’s operational components. It performs essential functions such as controlling all load switch outputs, processing detector inputs and resets, and handling operations. These were previously managed through TS1-A, B, and C connectors or additional I/O modules (MSD).Compliance and Power Supply
The Oriux BIU is designed to meet all applicable NEMA TS2 Standards. These Standards include those governing interface protocols, power requirements, environmental durability, and hardware specifications. Importantly, the BIU is powered by an independent external 24 VDC supply. Furthermore, it operates separately from the Controller Unit to enhance system reliability and operational flexibility.Front Panel Features
For ease of use and monitoring, the front panel of the Oriux BIU includes a handle for straightforward insertion and removal. In addition the BIU includes power-on and transmit status indicators. A 15-pin female Port 1 connector is provided for standard connectivity. Also, an optional RS232 connector is available to support additional interface requirements.System Connectivity
The BIU connects to other cabinet components through two main interfaces. The first is a 15-pin metal shell D-subminiature connector (Port 1). In addition, the BIU is equipped with latching blocks, allowing a secure connection to the Port 1 facilities termination panel. The second is a 64-pin DIN 41612 type B series connector. This connector links the BIU to the Terminal and Facilities (TF) back panel or card rack, ensuring robust cabinet integration.Communication and Addressing
Communication between the TS2 Controller Unit and multiple BIUs is achieved using a digital addressing system. Each BIU is configured with a unique logical position through address select inputs. As a result, its role and function within the cabinet is determined. This approach offers exceptional flexibility for cabinet design, simplifies future system expansion, enhances overall reliability, and supports standardization across Oriux and other TS2-compliant systems.SPECIFICATIONS
- 4.5″ H x 2.34″ W x 6.5″ D (114.3 mm H x 59.44 mm W x 165.1 mm D)
- 0.525 lb. (0.283 kg)
- Operating voltage system from 18 to 30 VDC, 200 mA
- Temperature range from -30°F to +165°F (-34°C to +74°C)
FEATURES
- Full compliance with NEMA TS2-2003
- Port 1 RS-485 SDLC interface
- Facilitates high-speed data exchange between controller, cabinet, detector racks, and malfunction management unit
- Performs conversion for 24VDC I/O logic signals to the serial bus
- Rack mounted for modularity and interchangeability
- The Oriux BIU address programmable via Terminal and Facilities
- The Port 1 15-Pin D Connector meets the requirements for the physical layer and the protocol for the full-duplex SDLC serial data bus and is in full compliance with Sections 3.3.1 and 8.6.2 of the NEMA TS2 -2003 Standard.
- The BIU card rack connector is a 64-pin DIN 41612 type B series connector with pin assignments as specified in Section 8.6.3.1 of the NEMA TS2 Standard.
- Address select inputs shall define the logical position of each BIU.
- The BIU positions 1-8 are designated for Terminals and Facilities (TF) and BIU positions 9-16 are designated for Detector Racks.
- Currently, up to 16 detector channels are assignable per BIU allowing up to a maximum of 64 detector channels.
- BIU positions 5-8 and 13-16 are reserved for future expansion requirements for TS2 or reserved for manufacturer-specific functions.
- The BIU is powered by a separate 24 VDC power supply external to the Controller Unit.
- The front panel contains a handle for easy removal and insertion of the unit, power on and transmit status indicators, a 15-pin female
- Port 1 connector and an optional RS232 connector.
- The BIU interfaces to the Port 1 facilities termination panel through a 15-pin metal shell D sub-miniature type connector, equipped with latching blocks.
- Connection to the Terminal and Facilities (TF) back panel or card rack is provided by a 64-pin DIN 41612 Type B series connector.
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Oriux covers a broad range of quality turnkey traffic control products and services. Oriux products have helped to make motorists around the world safer and their travels more pleasant and efficient. This expertise, experience, and breadth of product lines has made Oriux one of the most respected and recognized leaders in the traffic control marketplace. The Oriux product lines cover traffic cabinets, traffic controllers, monitors, power battery backup, traffic signals, advanced traffic management software, counters and classifiers and traffic detectors. For more information on any of our traffic systems equipment, explore our product section or contact us today.