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Wiegand Isolator
OPTW-100
Wiegand Signal Optical Isolator
Product Manual
OPTW-100_MAN_220919
Cypress Integration Solutions
35+ Years of Access Control Ingenuity
CypressIntegration.com
1
© 2022 Cypress Computer Systems
1778 Imlay City Road, Lapeer, MI 48446
800-807-2977
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Summary of Contents for Cypress OPTW-100
- Page 1 Wiegand Isolator OPTW-100 Wiegand Signal Optical Isolator Product Manual OPTW-100_MAN_220919 Cypress Integration Solutions 35+ Years of Access Control Ingenuity CypressIntegration.com © 2022 Cypress Computer Systems 1778 Imlay City Road, Lapeer, MI 48446 800-807-2977...
- Page 2 The OPTW-100 is necessary when the Wiegand devices in these applications operate the Wiegand data lines at different voltages. The OPTW-100 may also be used in applications where Wiegand devices are not able to be electrically connected, such as issues with power supplies or pull-up resistors.
- Page 3 Ground - Power Ground and Common Data Ground OPTW-100 - Bench Testing When installing the OPTW-100 with new access control equipment, bench testing is recommended. Refer to the wiring diagrams on pages 4, 5, and 6; find the wiring diagram that matches your application and set up a bench test accordingly.
- Page 4 The wiring diagram below shows how to connect two Wiegand readers to one access control panel Wiegand port, using the OPTW-100 to electrically isolate Reader 1 from Reader 2 and the access control panel while passing the Wiegand signals from both readers to the access control panel.
- Page 5 The wiring diagram below shows how to connect one Wiegand reader to two access control panels, using the OPTW-100 to electrically isolate the Wiegand reader and Access Control Panel 1 from Access Control Panel 2 while passing the Wiegand signals to both access control panels.
- Page 6 OPTW-100 - One Reader to One Panel Wiring Diagram The wiring diagram below shows how to connect one reader to one access control panel, using the OPTW-100 to electrically isolate the reader from the access control panel. 12 VDC 12V DC...
- Page 7 • If the voltage levels of the Wiegand device(s) are below 4.4VDC while it is not connected to other devices, they the problem lies with that device and not the OPTW-100. This may be able to be recovered using external pull-up resistors. Connect a 1K to 2K through-hole resistor to the low data line and a 5VDC output.
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