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COM-1PDH-LPE Datasheet(PDF) 2 Page - Contec Co., Ltd

Part No. COM-1PDH-LPE
Description  RS-422A/485 1ch Serial I/O Board with Isolation for PCI Express Low Profile
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Maker  CONTEC [Contec Co., Ltd]
Homepage  https://www.contec.com/
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COM-1PDH-LPE Datasheet(HTML) 2 Page - Contec Co., Ltd

   
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Ver.1.02
COM-1PDH-LPE
2
Communicationcable: 28AWG, doubleshieldedcable, twistedpairs usedfor each+/-signalline.
*4
The tablebelowlists themaximum communicationdistances ofthe terminator resistor valueand individualcablediameters.
The terminators on the product(100Ω) and the terminators generally used withRS-422A/485(120Ω) are listed.
Maximumcommunication distancesof the terminatorresistorvalue (100Ω) andcable diameter
Terminator
Resistor(Ω)
Cable Diameter
MaximumCommunication
Distance(m)
100
AWG28
400
AWG26
700
AWG24
1100
AWG22
1200
Maximumcommunication distancesof the terminatorresistorvalue (100Ω) andcable diameter
Terminator
Resistor(Ω)
Cable Diameter
MaximumCommunication
Distance(m)
120
AWG28
500
AWG26
800
AWG24
1200
AWG22
1200
Board Dimensions
Packing List
Board [COM-1PDH-LPE] …1
First step guide … 1
Disk [COM Setup Disk] …1
Transmission line connection terminal …1
Standard size bracket …1
Warranty Certificate …1
Serial Number Label …1
Support Software & Service
Standard COM Driver Software COM Setup Disk (Bundled)
The purpose of this software is to allow the CONTEC serial
communication boards to be used under Windows in the same way as
the standard COM ports on the PC. By installing additional boards, you
can use COM ports in the range COM1 - COM256.
The boards can be used for all types of serial communications such as for
remote access service (RAS) and uninterruptible power supply (UPS)
applications.
Under Windows, the serial ports can be accessed using the standard
Win32 API communication routines (CreateFile( ), WriteFile( ), ReadFile( ),
and SetCommState( ), etc.) The serial ports are also compatible with the
Visual Basic communication control (MSComm). Supports the
communication class of .NET Framework 2.0 (SerialPort class).
For more details on the supported OS, applicable language and new
information, please visit the CONTEC’s Web site.
Parts of the Board and Factory Defaults
Note that the switch setting shown below is the factory default.
Setting the Board ID
If you install two or more boards on one personal computer, assign a
different ID value to each of the boards to distinguish them.
The board IDs can be set from 0 - Fh to identify up to sixteen boards. If
only one board is used, the original factory setting (Board ID = 0) should
be used.
Setting Transmission Mode
The data transfer mode setting switch is used to switch between full
duplex and half duplex and to specify whether to use RTS/CTS in full
duplex mode. Set the appropriate data transfer mode for the device
with which you are communicating. Bits 3 - 5 are used to set the data
transfer mode. Always set bit 6 is to OFF.
[mm]
121.69(L)
The standard outside dimension (L) is
the distance from the end of the board
to the outer surface of the slot cover.
SW1
BOARD ID
COM-1PDH-LPE
SW1
BOARD ID
(SW1)
8
- Interface connector
(CN1)
+
+
- Data trancefer, terminator setting SW
(SW2)
SW2
TERM MODE
- Board ID setting SW
7 9
8
BOARD ID
SW1
(Board ID = 0)
Factory setting:
RTS
CTS
TERM
MODE
TERM
MODE
Harf duplex
Transmission
mode
Setting
mode
When there are no
RTS and CTS
Full duplex
TXD is only used for data
transmission; the sending
and receiving modes should
be switched over using the
modem control register.
With abobe setting, RTS
and CTS are connected in
the board.
Communication is available
without wiring of RTS
and CTS.


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