Welcome to the RB-x20 Series response pads customer support area. Here are the documents currently available.
The RB Series response pads are compatible with the following application programs and libraries:
If you are not using any of the applications listed above, click here for additional interfacing information.
RB-420, RB-520, RB-620, and RB-820 Models
Note: This page provides support documents for the serial port-based RB-x20 models (discontinued). These are the RB-420 and RB-620 introduced in September 2001, and the RB-520 and RB-820 introduced in April 2003.
Community Forums
The fastest way: your question may already be answered. Anyone can view but you need to sign up to post a question. The forums are monitored by Cedrus staff and questions are answered.
Go to Community Forums ►
Phone
1-310-548-9595
PRODUCTS
SUPPORT
STAY IN TOUCH
© Copyright 2026 Cedrus Corporation, P.O. Box 6309, San Pedro, CA 90734 - USA
Phone: +1-310-548-9595. Send us an email
qwerasdf