UR7BH GE Multilin UR-7BH Universal Relay Communication Module

Description

The UR 7BH (also identified as UR-7BH) is a dedicated fiber-optic communication interface module manufactured by General Electric for the Multilin Universal Relay series protection and control platform. This module serves as a localized data transmission interface, enabling high-speed optical communications across industrial networks and substation environments. Equipped with a single-channel Edge-Emitting LED (ELED) transmitter operating at a nominal wavelength of 1300 nm, the UR 7BH is designed specifically for multi-mode fiber infrastructure. The horizontal chassis form factor, denoted by the "H" configuration suffix, allows seamless integration into horizontal UR relay slots to maintain deterministic data flow and system synchronization.

Features

• Features a single-channel 1300 nm ELED optical transmitter configuration.
• Designed specifically for multi-mode fiber-optic network communication architecture.
• Integrated into the horizontal ("H") form factor for standard Universal Relay enclosures.
• Provides high-speed data transmission path directly linked over the internal chassis backplane.
• Delivers robust optical isolation against high-voltage electrical surges and EMI/RFI noise.

Applications

• High-speed peer-to-peer communication between Universal Relay protection nodes.
• Fiber-optic SCADA and substation automation network connectivity.
• Long-distance, noise-immune communication linkages within power generation plants and industrial facilities.

Technical Specifications

Installation Guidelines

• Chassis Power Down: Turn off all control voltage sources feeding the Universal Relay frame prior to handling the module to protect internal backplane chipsets.
• Fiber Optic Care: Maintain the minimum bending radius of the multi-mode fiber patch cables to minimize attenuation. Clean the fiber ferrule tips and optical transceiver ports with lint-free wipes before connection.
• Module Seating: Align the horizontal module carefully inside the chassis tracks, sliding it smoothly into place until the rear contact pin block locks tightly into the active backplane.
• Network Mapping: Utilize the EnerVista UR utility program to verify device detection and map communication variables to the specific slot where the module is housed.