VXC Communication Cards

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VXC Communication Cards
-- Multiport Serial Cards -- (RS-232/422/485)

• Jun. 03, 2009
• Gary Lin
• ICP DAS Co., Ltd.

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Agenda

• VXC Card Features
• Product Showcase
• Appendix

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Universal PCI Card
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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
Special Design from ICP DAS

• 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. Its recommended to reserve
  (dont 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

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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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Schematic
DC-to-DCPower Isolation
COM-Selector
Internal 128-byte FIFO for Each Port
TVS diodeESD Protection
Master/Slave Selection
Universal PCI 3.3/5 V
OptocouplerSignal Isolation
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Agenda

• VXC Card Features
• Product Showcase
• Appendix

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VXC-114U 4-Port RS-232 (9-Wire) Card

• OptionalDB-37 to 4-Port Male DB-9 Cable, 1.5 M.
• Need to install new driver

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VXC-114U 4-Port RS-232 (9-Wire) Card
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VXC-144U/144iU 4-Port RS-422/485 Card

• OptionalDB-37 to 4-Port Male DB-9 Cable, 1.5 M.
• Need to install new driver.

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VXC-144U/144iU 4-Port RS-422/485 Card
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VXC-112U 2-Port RS-232 (9-Wire) Card

• Need to install new driver.

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VXC-112U 2-Port RS-232 (9-Wire) Card
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VXC-142U/142iU 2-Port RS-422/485 Card

• Need to install new driver

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VXC-142U/142iU 2-Port RS-422/485 Card
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VXC-182iU 2-Port (RS-232 x1, RS-422/485 x1) Card

• Need to install new driver

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VXC-182iU 2-Port (RS-232 x1, RS-422/485 x1) Card
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Agenda

• VXC Card Features
• Product Showcase
• Appendix

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VXC Card Naming Convention
VXC-1 X Y (i / U / E) X Serial Port Type 1
RS-232 4 RS-422/485 8 RS-232 or
RS-422/485 Y Number of Total Ports i
Isolation U Universal PCI (3.3 V/5 V) E PCI
Express
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Selection Guide
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Next
VXC Card with PCI Express 2-Port and 4-Port
cards are under development.
PCI Express
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Q AThank You!!

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