10
ACR8000 Hardware Manual
P/N PM08119 Version 1.00
Motherboard Jumpers
Encoder Pull-up Select (JS21..JS28)
Figure 1.4 Encoder pull-up jumpers
The ACR8000 is capable of handling various types of incremental open-collector and line
driver encoders. Care must be taken to setup each channel to match the encoder type as
described below:
Open Collector Encoders:
When using open-collector encoders, the encoder channels must be pulled to 5 or
+12 volts, depending on the application. Pulling up to +12 volts provides higher noise
immunity but causes a slower response time. For high frequency applications (encoder
rates greater than one megahertz) the +5 volt pull-up selection may be necessary.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
