
Installation
6
3.2 RS485
RS485 is used for point-to-point cable connection of more than one device (maximum 32 devices) over a
large distance (max 1.2km) and allows for connection to PC to for use with the DSE SCADA Suite.
3.2.1 RS485 CONNECTION
3.2.2 RECOMMENDED PC RS485 SERIAL PORT ADD-ONS
Many PCs are not fitted with an internal RS485 serial port. DSE DO NOT recommend the use of USB to
RS485 convertors but can recommend PC add-ons to provide the computer with an RS485 port.
Remember to check these parts are suitable for your PC. Consult your PC supplier for further advice.
• Brainboxes PM154 PCMCIA RS485 card (for laptops PCs)
Set to ‘Half Duplex, Autogating” with ‘CTS True’ set to ‘enabled’
• Brainboxes VX-023 ExpressCard 1 Port RS422/485 (for laptops and nettop
PCs)
• Brainboxes UC320 PCI Velocity RS485 card (for desktop PCs)
Set to ‘Half Duplex, Autogating” with ‘CTS True’ set to ‘enabled’
• Brainboxes PX-324 PCI Express 1 Port RS422/485 (for desktop PCs)
Supplier:
Brainboxes
Tel: +44 (0)151 220 2500
Web: http://www.brainboxes.com
NB DSE Have no business tie to Brainboxes. Over many years, our own engineers have used these products
and are happy to recommend them.
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