St. Louis, MO -- Power transmission: Belden Inc., a provider of signal transmission solutions, has launched the OBR40 optical bypass relay from its Hirschmann Brand. Suitable for use in harsh environments, the relays increase the availability of fiber-optic Ethernet networks by ensuring that they remain operational despite power failures at one or more switches. These relays are designed for both ring and bus topologies.
When a switch fails, an internal switchover mechanism in the relay enables data communication to continue seamlessly between neighboring switches. The bypass relay connects to a switch's fiber-optic uplink ports via two duplex inputs/outputs. The mechanism is designed to operate even when the bypass relay loses power.
The bypass relay also supports at-will activation of the bypass function for maintenance or selective shutdown of parts of the network. For example, when the wind gets too strong in a wind park, or when maintenance work is needed, one or more turbines can be easily taken out of the network without affecting the connections of the remainder.
Product Manager Rolf-Dieter Sommer said, “Our new OBR40 optical bypass relays add a new level of reliability for Ethernet networks. Even multiple malfunctions do not impact the network’s overall productivity.”
The bypass relay is available with ports that support three different fiber types (multi-mode 62.5/125 µm, multi-mode 50/125 µm, single-mode 9/125 µm). The switching threshold is adjustable via a DIL switch over a range of 1V to 32V. In addition, a switch-on delay (adjustable for intervals of up to 75s) allows the switch's boot process to complete so that no data packets are lost or delayed when a switch comes back on line. The bypass relay also features an IP30 protection rating, an operating temperature range of -40°C to +70°C, and a redundant 24 VDC power supply. The 115 x 61 x 113 mm metal housing is DIN-rail mountable. LEDs on the front panel indicate the status of the device and network.
Hirschmann, a Belden Brand, manufactures Ethernet switches, wireless access points, firewall/VPN routers and network management software for harsh industrial environments. The Hirschmann brand stands for experience and expertise in the automation, power transmission and distribution, transportation and energy industries, having pioneered the development of Ethernet as a common standard for industrial control systems. Hirschmann products ensure hassle-free and secure data communication under the harshest conditions due to their ruggedized design and construction.
Belden Inc., a global leader in high quality, end-to-end signal transmission solutions, delivers a comprehensive product portfolio designed to meet the mission-critical network infrastructure needs of industrial, enterprise and broadcast markets. With innovative solutions targeted at reliable and secure transmission of rapidly growing amounts of data, audio and video needed for today's applications, Belden is at the center of the global transformation to a connected world. Founded in 1902, the company is headquartered in St. Louis and has manufacturing capabilities in North and South America, Europe and Asia.