VXC Communication Cards
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1
VXC Communication Cards
Jun. 03, 2009
Gary Lin
ICP DAS Co., Ltd.
-- Multiport Serial Cards -- (RS-232/422/485)
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Communication Speed (Baud Rate)
VXC card supports bard rate up to 115,200 bps. Also works with 460,800 bps when
communication on a very short distance. Does not work with 921,600 bps since the
protection components limitation. The related conditions includes : quality of
cable, distance and environment (noise)… etc.
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Selection for RS-485 Master/Slave
RS-485 requires pull-high/low bus signals RS-485 requires one host/device to pull high/low the bus
signals. Many device pull the signals at the same time may cause
communication problem.
Master/Slave selection on VXC Card There are jumpers on the VXC cards for users to configure the
RS-485 port as master (pull-high/low) or slave. That would be better to choose a suitable configuration
depending on your communication system.
Default: Master (Pull)
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Self-Tuner for RS-485
RS-485 Requires Direction Control 2-Wire RS-485 is designed for half-duplex communication, and
users have to consider the sending/receiving issue. Other company may use RTS signal to control the RS-485
direction. This may have timing issue and cause communication problems.
Self-Tuner Controls the RS-485 Direction Automatically
ICP DAS provides Self-Tuner ASIC that automatically control the RS-485 direction, baud rate and data format changes. It is fully controlled by hardware, so no more direction control issue for users.
This provides a stability communication and speeding your system development.
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COM-Selector
8-Bit DIP-Switch, defines 0 ~ 255Special design from ICP DAS.
0 (All Off): Auto-select COM Port NumberSelecting by Windows system, may have a dynamic number.Automation System may not get the correct COM port number and cause system failure.
1 ~ 255: COM1 ~ COM255Selected by user, fixed COM port number. It’s recommended to reserve (don’t use) COM1 ~ COM4 for other PnP COM Ports. This prevents confliction. Users have to make sure the selected COM port number is available, or the port will not work.
Example: COM-Selector set to 0x052-Port Card: COM5, COM64-Port Card: COM5, COM6, COM7, COM8
Special Design
from ICP DAS
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Up to 128-byte Hardware FIFO
Standard 16C550 chip provides 16-byte hardware FIFO
The new VXC cards from ICP DAS provides 128-byte hardware FIFO for each port
128-byte hardware FIFO is useful when communication in high speed or in a heavy loading system.
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ESD Protection
TVS (TRANSIENT VOLTAGE SUPPRESSOR) diode protects components by providing a transient current path to the frame ground when there is high voltage noises.
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Isolation
DC-to-DC converter provides Power Isolation
Optocoupler component provides Signal Isolation
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SchematicCOM-Selector
OptocouplerSignal Isolation
TVS diodeESD Protection
DC-to-DCPower Isolation
Universal PCI
3.3/5 V
Internal
128-byte FIFO
for Each Port
Master/Slave
Selection
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VXC-114U: 4-Port RS-232 (9-Wire) Card
Optional: DB-37 to 4-Port Male DB-9 Cable, 1.5 M.Need to install new driver
VXC-112A VXC-114U
Bus PCI 5 V Universal PCI 3.3 V/5 V
COM-Selector Yes, 8-bit DIP Switch Yes, 8-bit DIP Switch
RS-232 2-Port 4-Port
RS-422/485 - -
Controller Tiger Oxford
Hardware FIFO 16 Bytes 128 Bytes
Connector Male DB-9 Female DB-37
ESD Protection +/- 4000 V +/- 4000 V
Windows Driver NT 4.0, 2000/XP/2003, Vista32 NT 4.0, 2000/XP/2003, Vista32
Availability Phase out soon 04/2008
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VXC-144U/144iU: 4-Port RS-422/485 Card
Optional: DB-37 to 4-Port Male DB-9 Cable, 1.5 M.Need to install new driver.
VXC-142/142i VXC-144U/144iU
Bus PCI 5 V Universal PCI 3.3 V/5 V
COM-Selector Yes, 8-bit DIP Switch Yes, 8-bit DIP Switch
RS-232 - -
RS-422/485 2-Port (3 kV Isolation for VXC-142i)
4-Port (2.5 kV Isolation for VXC-144iU)
Self-Tuner Yes (RS-485) Yes (RS-485)
Jumper - Select RS-485 Master/Slave
Controller Tiger Oxford
Hardware FIFO 16 Bytes 128 Bytes
Connector Male DB-9 Female DB-37
ESD Protection +/- 4000 V +/- 4000 V
Windows Driver NT 4.0, 2000/XP/2003, Vista32 NT 4.0, 2000/XP/2003, Vista32
Availability Phase out soon 04/2008
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VXC-112U: 2-Port RS-232 (9-Wire) Card
Need to install new driver.
VXC-112A VXC-112U
Bus PCI 5 V Universal PCI 3.3 V/5 V
COM-Selector Yes, 8-bit DIP Switch Yes, 8-bit DIP Switch
RS-232 2-Port 2-Port
RS-422/485 - -
Controller Tiger Oxford
Hardware FIFO 16 Bytes 128 Bytes
Connector Male DB-9 Male DB-9
Dimension 130 mm x 105 mm 120 mm x 105 mm (reduced)
ESD Protection +/- 4000 V +/- 4000 V
Windows Driver NT 4.0, 2000/XP/2003, Vista32 NT 4.0, 2000/XP/2003, Vista32
Availability Phase out soon 05/2009
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VXC-142U/142iU: 2-Port RS-422/485 Card
Need to install new driver
VXC-142/142i VXC-142U/142iU
Bus PCI 5 V Universal PCI 3.3 V/5 V
COM-Selector Yes, 8-bit DIP Switch Yes, 8-bit DIP Switch
RS-232 - -
RS-422/485 2-Port (3 kV Isolation for VXC-142i)
2-Port (2.5 kV Isolation for VXC-142iU)
Self-Tuner Yes (RS-485) Yes (RS-485)
Jumper - Select RS-485 Master/Slave
Controller Tiger Oxford
Hardware FIFO 16 Bytes 128 Bytes
Connector Male DB-9 Male DB-9
Dimension 130 mm x 105 mm 120 mm x 105 mm (reduced)
ESD Protection +/- 4000 V +/- 4000 V
Windows Driver NT 4.0, 2000/XP/2003, Vista32 NT 4.0, 2000/XP/2003, Vista32
Availability Phase out soon 05/2009
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VXC-182iU: 2-Port (RS-232 x1, RS-422/485 x1) Card
Need to install new driver
VXC-182i VXC-182iU
Bus PCI 5 V Universal PCI 3.3 V/5 V
COM-Selector Yes, 8-bit DIP Switch Yes, 8-bit DIP Switch
RS-232 1-Port 1-Port
RS-422/485 1-Port with 3 kV Isolation 1-Port with 2.5 kV Isolation
Self-Tuner Yes (RS-485) Yes (RS-485)
Jumper - Select RS-485 Master/Slave
Controller Tiger Oxford
Hardware FIFO 16 Bytes 128 Bytes
Connector Male DB-9 Male DB-9
Dimension 130 mm x 105 mm 120 mm x 105 mm
ESD Protection +/- 4000 V +/- 4000 V
Windows Driver NT 4.0, 2000/XP/2003, Vista32 NT 4.0, 2000/XP/2003, Vista32
Availability Phase out soon 05/2009
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VXC Card Naming Convention
VXC-1 X Y (i / U / E)X: Serial Port Type
1: RS-2324: RS-422/4858: RS-232 or RS-422/485
Y: Number of Total Ports
i: IsolationU: Universal PCI (3.3 V/5 V)E: PCI Express
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Selection Guide
Model Bus Type RS-232 RS-422/485 Isolation FIFO Size Status
VXC-112A PCI (5V) 2 - - 16 bytes Phase out
VXC-142 PCI (5V) - 2 - 16 bytes Phase out
VXC-142i PCI (5V) - 2 Yes 16 bytes Phase out
VXC-182i PCI (5V) 1 1 Yes 16 bytes Phase out
VXC-112U Universal PCI 2 - - 128 bytes New
VXC-142U Universal PCI - 2 - 128 bytes New
VXC-142iU Universal PCI - 2 Yes 128 bytes New
VXC-182iU Universal PCI 1 1 Yes 128 bytes New
VXC-114U Universal PCI 4 - - 128 bytes New
VXC-144U Universal PCI - 4 - 128 bytes New
VXC-144iU Universal PCI - 4 Yes 128 bytes New
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Q & A
Thank You!!
Q & A
Thank You!!
http://www.icpdas.com