0-20 mA to fibre converter for analog position monitoring
28 August 2002
Opto-Electronics
The LL122 is an optical fibre analog current interface used in many process and industrial control systems. Available from Advanced Digital Devices, the interface converts a 0-20 mA signal to an optical signal which is sent through the fibre-optic cable. Another LL122 converter at the remote end re-converts the light signal back into a 0-20 mA electrical signal.
These circuits are short-circuit protected and are designed to tolerate the abuse often found in the industrial arena. The units are provided with built-in mains power supplies and are housed in grey powder-coated metal boxes which offer protection in harsh industrial environments. The units serve to extend the range of a 0-20 mA control signals via an opto-decoupler to prevent damage to equipment by induced lightning surges.
The LL122 is suited for 850 nm multimode as standard. Optional is 1300 nm multimode/singlemode. ST connectors are industry standard with multimode, and (optional) SC for multimode and FC for singlemode. The units are suitable for use in environmental conditions: 0-45°C and 0-95% noncondensing humidity.
For more information: ADD South Africa, 011 314 3150, [email protected]
Further reading:
Enhanced breaker status and communication module
Schneider Electric South Africa
Opto-Electronics
Schneider Electric has announced the launch of its new Breaker Status and Communication Module (BSCM) Modbus SL/ULP, which delivers enhanced performance, improved connectivity, and simplified integration for power distribution systems.
Read more...
Heat-resistant LEDs
Opto-Electronics
Würth Elektronik’s new RGB LEDs are characterised by excellent heat resistance with an insensitivity to temperatures from -40 to 100°C making them ideal solutions for reliable, colour-variable lighting in applications at high operating temperatures.
Read more...
PhotoMOS relays
Future Electronics
Opto-Electronics
The AQY221R2SX and AQY221R2S PhotoMOS from Panasonic Industry ensures excellent characteristics and high-speed switching performance.
Read more...
Mouser now shipping onsemi’s image sensors
TRX Electronics
Opto-Electronics
The AR0145CS is a 1/4,3-inch CMOS digital image sensor with a 1280 (H) x 800 (V) active-pixel array that can capture both continuous video and single frames.
Read more...
Adaptive optics’ power solution
Altron Arrow
Opto-Electronics
Vicor power-dense adaptive optical modules enable colossal telescopes to look into the past for deep space discoveries.
Read more...
Ultra-high speed photo detection
Opto-Electronics
TDK Corporation has announced a photo-spintronic conversion element combining optical, electronic, and magnetic elements that can respond at an ultra-high speed of 20 picoseconds.
Read more...
High-speed lasers
RFiber Solutions
Opto-Electronics
Macom are a high-volume manufacturer of lasers, deploying more than 100 million devices with a reliability of less than 50 FIT and greater than 100 years of wear-out lifetime
Read more...
High-performance optical interconnect
Opto-Electronics
STMicroelectronics has unveiled its next generation of proprietary technologies for higher-performing optical interconnect in datacentres and AI clusters.
Read more...
Halo mid-board optical transceiver
Spectrum Concepts
Opto-Electronics
The Samtec Halo mid-board transceiver has been designed for next-generation embedded applications that require 56 and 112 Gbps PAM4 performance in low profile and ruggedised form factors.
Read more...
New generation of Ethernet media converters
IOT Electronics
Opto-Electronics
Phoenix Contact is introducing three new families of media converters to the market, each designed for specific industrial environments and challenges.
Read more...