ES-U-2016-RM EasySync, ES-U-2016-RM Datasheet - Page 9

• Manufacturer Part Number: ES-U-2016-RM
• Description: USB Interface IC USB to 16 Ports RS422/RS485, Metal
• Manufacturer: EasySync

3.4
Optical isolation and surge protection are available in the ES-U-11xx and ES-U-21xx converters.
Each serial port is individually optically isolated with 2000 volt DC optical isolation. The optical isolation
protects your PC or notebook from spikes and surges on the RS-232 or RS-422/RS-485 network, by
converting the electrical data into an optical signal and then changing it back into electrical data. Your
computer is well protected, since the surges and spikes cannot cross the optical link.
Each serial port is individually protected by surge protector to withstand electrostatic discharge and
power surges up to 25KV ESD. Surge suppression on all signals protects against damage caused by
lightning or high voltage.
3.5
The ES-U-2xxx-x and ES-U-3xxx-x converters can be configured for different interface types. These
converters have DIP switches or internal jumpers to select the required interface. They also feature
internal jumpers to select options such as termination and biasing of the RS-422 and RS-485 lines.
Please refer to section 5 for more information on the DIP switch and jumper settings available on each
model of converter.
Optical Isolation & Surge Protection
Configuring for RS-232, RS-422 and RS-485 Modes
Figure 7
Figure 8
ES-U-2xxx and ES-U-3xxx have DIP switches to select the serial mode
ES-U-3008-RM has a set of jumpers for each port (one set circled)
©2010 - 2011 EasySYNC Ltd.
ES-U-3008-RM
Document Reference No.: ES_000061
USB to Serial Converters Manual
Clearance No.: ES
Version 1.2
# 35
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