The PCI-7258 is suitable to be applied to ATE, instrumentation, telecommunications and medical equipment where high speed and reliable switching is required.
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ADLINK TECHNOLOGY INC., A leader in design and manufacture of open-platform PC-based industrial computers of test & measurement, automation, and communications, today announces its new 32 channel PhotoMOS relay output card, the PCI-7258.
The PCI-7258 features 32 channels with PhotoMOS form A type relays (SPST), capable of switching up to 350VAC or 350VDC with a continuous load current 0.12A and is designed with a 1500 VAC isolated I/O voltage protection circuit to prevent it from being damaged from high voltage surges. Unlike armature relays which are relatively slow during switching, they also have a limited life span. PhotoMOS relays have much faster switching time and can have a much longer life expectancy.
The PhotoMOS relay has LED inputs and MOSFET outputs, hence providing good input-output isolation. When a signal current flows into the LED input pin, light emitted from the LED is detected by the photoelectric element (solar cell) which is mounted adjacent to the LED. The photoelectric element converts the received light source to a voltage signal which in turn charges the MOSFET gate on the output side. When the voltage reaches a preset voltage level, the MOSFET begins to conduct and turns the load on. A simplified circuit of PhotoMOS relay is shown in figure 1 below.
The PhotoMOS relay incorporates the advantages of both a semiconductor and an electro-mechanical relay. The PhotoMOS relay utilizes the MOSFET as a switch instead of the mechanical contact, thus the contact resistance remains stable through the life of the relay. Furthermore, relay bouncing problems are eliminated.
In addition to the PhotoMOS relay, the PCI-7258 also features 2 isolated digital channels, each capable of up to 2500 Vrms isolation(channel to system) and can act as an interrupt source input. This allows the PCI-7258 to be triggered by an external source or event such as alarm. Also with onboard LEDs, it provides more convenience to users with a visual indication of the current status of each relay, (whether energized or not).
With all the advantages listed, the PCI-7258 would be very suitable to be applied to ATE(Automatic Test Equipment), instrumentation, telecommunications and medical equipment where high speed and constant switching is required.
About ADLINK
ADLINK Technology provides a wide range of embedded computing products and services to the test & measurement, automation & process control, gaming, communications, medical, network security, and transportation industries. ADLINK products include PCI Express®-based data acquisition and I/O; vision and motion control; and AdvancedTCA, CompactPCI, and Computer-on-Modules (COMs) for industrial computing. With the acquisition of Ampro Computers, Inc., ADLINK also provides a wide range of Extreme Rugged and Rugged Single Board Computers, Computer-on-Modules and Systems under the brand name Ampro by ADLINK. ADLINK strives to minimize the total cost of ownership (TCO) of its customers by providing customization and system integration services, maintaining low manufacturing costs, and extending the lifecycle of its products. ADLINK is a global company with headquarters and manufacturing in Taiwan; R&D and integration in Taiwan, China, and the US; and an extensive network of worldwide sales and support offices.
ADLINK is ISO-9001, ISO-14001, and TL9000 certified, is an Associate Member of the Intel® Embedded and Communications Alliance, an Executive Member of PICMG, and a Sponsor Member of the PXI Systems Alliance. ADLINK is a publicly traded company listed on the TAIEX Taiwan Stock Exchange (stock code: 6166).
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For more information, please contact our worldwide offices nearest your region. ADLINK TECHNOLOGY AMERICA, INC. |
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