EXSYS EX-47905 Bedienungsanleitung
EXSYS
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EX-47905
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1
Thank you for purchasing this RS232 to RS422/485 Converter It is designed for your .
PC, workstation, thin client, or server to provide instant RS422/485 serial port expansion
via the standard RS232 port. It provides a DB9 female connector (DCE) that can be
connected directly to your PC s RS232 port. Its advanced power circuits can get the ’
power from the standard RS232 signals. However, in case the RS232 cable is too long,
or its power is too low, an external 12V DC power source can be applied to its terminal
blocks as well.
Features:
✓ Supports a RS422/485 port over standard RS232 port
✓ 6-pin Terminal Block Supports RS422, RS485 4-wire 2-wire m odes
✓ Optional model supports 0-watt Surge Protection 35
✓ Port-powered from RS232 lines, external power source supported, but not
required in most cases
✓ Supports precise RS485 ATTA
TM
(Auto Transceiver Turn Around) feature to
disable the line driver by hardware
✓ Automatic Baud Rate Detection
✓ No Driver Required for All Operating Systems
EX-47905
RS232 to RS422/485 Converter
1. Introduction
2. Layout: RS232 to RS422/485 nverter Co
6-pin Terminal Block
RS422/485 Connector
Mode Setting Switches
9-pin female DSUB
RS232 Connector
(congured as DCE)
Optional 12V DC
power Input pin
Terminal block secure
screws (inside)
RS232 to RS422/485 Converter
2
There are 4 switch pins on the DIP switch. Their functions as follows:
Switch
pin No.
Switch
Name
Description
1
485 2W-
ON for RS485-2W mode, OFF for RS422 and RS485-4W modes
2
HISPD
ON for High Speed Transfer (optional, leave it at OFF)
3
P9PWR
ON to enable pin 9 of DB9 connector to supply the power, either 5V
or 12V is accepted
4
TERM
ON to enable Termination Resistor
Mode Settings:
Switch Settings
Description
RS485 2-wire mode
(Default)
RS422 or RS485 4-wire mode
3. Mode Switch Settings
ON
1 2 3 4
485 2W-
HISPD
P9PWR
TERM
ON
1 2 3 4
485 2W-
HISPD
P9PWR
TERM
ON
1 2 3 4
485 2W-
HISPD
P9PWR
TERM
RS232 to RS422/485 Converter
3
DB9 pin 9 Power Settings:
Switch Settings
Description
Do NOT supply power from DB9
connector pin 9
(Default)
Supply power from DB9 connector
pin 9
Termination Resistor Settings:
Switch Settings
Description
Termination Resistor Disabled
(Default)
Termination Resistor Enabled
ON
1 2 3 4
485 2W-
HISPD
P9PWR
TERM
ON
1 2 3 4
485 2W-
HISPD
P9PWR
TERM
ON
1 2 3 4
485 2W-
HISPD
P9PWR
TERM
ON
1 2 3 4
485 2W-
HISPD
P9PWR
TERM
Produktspezifikationen
| Marke: | EXSYS |
| Kategorie: | Nicht kategorisiert |
| Modell: | EX-47905 |
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