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Industrial Port-Powered RS232
(Part Number: CVT-485A-1)
http://www.CommFront.com
Revision: 2.1
www.CommFront.com
RS485 Converter
Page 1 of 4
Industrial Port-Powered RS232/RS485 Converter
Part Number: CVT-485A-1
INTRODUCTION
■
The CVT-485A-1 is a slim, rugged, industrial grade, port-powered RS-232 to
RS-485 converter, which can be used to convert any standard RS-232C port into a
two-wire half-duplex RS-485 port and vice versa. It supports multi-drop RS-485
networks and can be used to communicate with one loop of up to 128 units of
RS-485 devices. The unit features very high power efficiency (less than 8mA) and
supports data direction auto-turnaround. It comes with a 5-way terminal block
which can be attached to the converter securely without using screws and nuts,
and the innovative selectable 120-Ohm end-of-line terminator design makes the
termination easier than ever before, thus making the unit an ideal solution for
quick installation and space-restricted applications.
■
FEATURES
• Port-powered with higher sensitivity and higher power efficiency.
• Designed for quick installation and space-restricted applications.
• Supports 128 nodes of RS-485 devices.
• Operates reliably from 300 to 115,200 baud.
• Industrial grade enclosed in a rugged, rustless ABS housing.
• Plug and play (hot-pluggable, data format auto-sensing and self-adjusting).
• Data direction auto-turnaround, no software drivers or flow control is required.
• Operating temperature: -40ºF to 185ºF (-40ºC to 85ºC).
• Built-in 600W surge protection, 15kV static protection and circuit protection.
• Built-in selectable 120
terminator for system reliability and easy installation.
• Rugged 5-way terminal block requires no screws and nuts.
• Surface Mount Technology manufactured to RoHS and ISO-9001 standards.
• Safety: Strictly certified by TUV (Cert No. SG-CE-090012).
• 5-year manufacturer's warranty.
■
SPECIFICATIONS
Compatibility:
EIA/TIA RS-232C standard and RS-485 standard
Power Source:
Port power from RS-232 data line
Current Consumption:
Less than 8mA
Baud Rates:
300 to 115,200bps (auto-sensing and self-adjusting)
Distance:
RS-232 side: 16ft (5m); RS-485 side: Depending on
power from RS-232 port, will transmit up to 4000ft
(1.2km) at 19,200bps
Connector:
RS-232 side: DB-9 Female; RS-485 side: 5-Way Terminal
Block
Max. number of drops:
128
End-of-Line Terminator:
120
(built-in, selectable)
Surge Protection:
600W
Static Protection (ESD):
Up to 15KV
Dimensions (H x W x
0.63 x 1.3 x 2.7 in (16 x 32 x 69 mm) (with termination
D):
board)
Weight:
1.0 oz (28 g) (with termination board)
Operating Temperature:
-40ºF to 185ºF (-40ºC to 85ºC)
Operating Humidity:
Up to 90% RH (no condensation)
Revision: 2.1
www.CommFront.com
Communications made easy
Page 2 of 4
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Table of Contents
Related Manuals for CommFront CVT-485A-1
Summary of Contents for CommFront CVT-485A-1
- Page 1 Communications made easy INTRODUCTION ■ The CVT-485A-1 is a slim, rugged, industrial grade, port-powered RS-232 to RS-485 converter, which can be used to convert any standard RS-232C port into a two-wire half-duplex RS-485 port and vice versa. It supports multi-drop RS-485 networks and can be used to communicate with one loop of up to 128 units of RS-485 devices.
- Page 2 RS485- Tie to turn ON the 120 end-of- numbers of CVT-485A-1 to your PC’s COM ports and run two instances of the line terminator 232Analyzer software, then send commands from one COM port, you should receive an echo of the commands sent on the other COM port. By performing a CONNECTIONS ■...
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