CyberResearch UCERB 24 - Manual (Page 10)

Chapter 1
Introducing the UCERB 24
Overview: UCERB 24 features
This user's guide contains all of the information you need to connect the UCERB 24 to your computer
and to the external devices you want to control. You can use the UCERB 24 in your control applications
to switch on and off a variety of devices, such as fans, blowers, pumps, etc.
The UCERB 24 is a USB 2.0 full-speed, electromechanical relay module. It is supported under
Microsoft ® Windows ® 98 (2 nd edition), Windows ME, Windows 2000, and Windows XP.
The UCERB 24 has 24 single-pole double-throw (SPDT) Form C electromechanical relays. The digital
I/O lines on your USB module directly control the relays on your UCERB 24.
You connect your field wiring directly to the board's screw terminals. The screw terminals provide three
connections to each relay – normally open (NO), normally closed (NC), and common (C).
You can configure the logic polarity and power-on state of each bank of relays with on-board switches.
The relays are configurable as two banks of eight and two banks of four. Switch settings can be read back
with software.
The UCERB 24 is powered by an external 9 V, 3 A regulated power supply that is shipped with the
device. A USB cable is also included. Power OUT and USB OUT connectors let you power and control
multiple boards from one external power source and one USB port in a daisy chain fashion. Depending
on your load requirement, daisy chained boards may require a separate power supply.
The UCERB 24 is shipped in a rugged enclosure that you can mount on a DIN rail or on a bench.
UCERB 24 CyberResearch
®
Digital I/O
2 ©Copyright 2005 CyberResearch, Inc.