Ver.1.00 PCI –compliant I/O RS-422A/485 4ch Serial I/O board This PCI board was designed for extending RS-422A/485 COM-4DL-PCI compatible serial communication functionality on your PC. COM-4DL-PCI has four RS-422A/485 communication ports. With a 64 byte built-in FIFO buffer for transmission and reception of each channel, the product supports a baud rate of up to 230,400bps. It also comes with a Windows driver, which allows boards to be used as OS-standard COM ports. Specifications Item Specification Number of channels 4channels Interface type RS-422A/RS-485 Isolation specification None Features Isolation pressure proof None Transfer method Asynchronous serial transfer (Full-duplex / half-duplex) -Max. 230,400bps RS-422A/485 Serial Communication Baud rate 15 - 230,400bps *1 *2 Data length 5, 6, 7, 8 bits COM-4DL-PCI has four RS-422A/485-standard serial 1, 1.5, 2 stop bits *1 Parity check Even, Odd, Non-parity *1 ports. Loarding LSI 162850 or equivalent Baud rates from 15 to 230,400 bps can be set. (Each channel has 64-byte receive and 64-byte transmit FIFO buffers.) - Boards can be used as standard serial ports when Connecting distance Within 1200m *3 operating in a Windows environment Interrupt requests 1 level use *4 Memory address 1024byte boundary These products come with a driver library that allows the Power consumption (Max.) 5VDC 640mA boards to be used under Windows in the same way as Operating temperature 0 - 50°C, 10 - 90%RH (No COM ports on a PC. Under Windows, these boards condensation) PCI bus specification PCI (32bit, 33MHz *5) support the OS-standard Win32 API communication Dimension (mm) 121.69(L) x 105.68(H) function as well as Visual Basic MSComm. The driver Connector used 37-pin D-SUB connector, library also includes a diagnostic program to confirm 2031-2-37-S [mfd. by gallant, hardware operation and to perform communication tests. F(female) type] equivalent Weight 95g - 16 boards (max) can be installed with an access *1 These items can be set by software. range from COM1 to COM256. *2Data transmission at high speed may not be performed normally depending on the environment including the type of status of connected material of cable and environment. Up to 16 boards can be installed in a single PC. *3The table below lists an example of the relationship between baud rate COM1 - COM256 can be set using the device manager. and communication distance. Communication Baud rate - Each channel is equipped with separate 64-byte distance 300m 115,200bps FIFO buffers for transmit and receive. 600m 57,600bps 900m 19,200bps Each individual channel has FIFO buffer memory 1200m 9,600bps (transmission: 64 bytes, reception: 64 bytes). Communication cable : 28AWG, double shielded cable, twisted This feature is useful for high speed communications and pairs used for each +/- signal line. to reduce the load to the CPU during *4A single interrupt signal "INTA" is output as a collection of interrupt input signals from two channels. transmitting/receiving. *5This board requires power supply at +5 V from an expansion slot (it does not work on a machine with a +3.3V power supply alone). - Cables and connectors are available as optional. Board Dimensions 121.69(L) 4 channels distribution cable is included. 37-pin D-SUB connectors (male type) for creating your own cables are available as optional. -The control line for RS-422A/485 can be controlled and monitored by software. [mm] The standard outside dimension (L) is the distance from the end of the board The control lines for RTS+, RTS-, CTS+, CTS- can be to the outer surface of the slot cover. controlled and monitored using an application. COM-4DL-PCI 1 105.68(H) Ver.1.00 Specification of “The bundled distribution cable Support Software CH1 - Cable Standard COM Driver Software “COM Setup Disk” 9-conductor shielded cable TxD1- 5 9 RxD1- Cable length : 250mm TxD1+ 4 (Included) 8 RxD1+ Conductor size : AWG#28 RTS1- 3 CH1 - Connector used 7 CTS1+ RTS1+ 2 The purpose of this software is to allow the CONTEC serial 37-pin D-SUB, male connector 6 CTS1- SG1 1 Thumb screw : communication boards to be used under Windows in the UNC #4-40 (inch screw) CH2 same manner as standard computer COM ports. By installing additional boards, you can use COM ports in the CH3 CH4 range COM1 - COM256. TxD4- 5 9 RxD4- The boards can be used for all types of serial TxD4+ 4 8 RxD4+ 3 CH4 RTS4- 7 CTS4+ communications including remote access service (RAS) 2 RTS4+ 6 CTS4- 1 SG4 and uninterruptible power supply (UPS) applications. Under Windows, the serial ports can be accessed using - Connector used 9-pin D-SUB, male connector the standard Win32 API communication routines Thumb screw : UNC#4-40 (inch screw) - Applicable connectors (CreateFile( ), WriteFile( ), ReadFile( ), and 17JE-13090-02(D8C) (mfd. by DDK, Female) SetCommState( ), etc.) The serial ports are also compatible with Visual Basic communication control *Connection distribution cable (Option) (MSComm). Connection Conversion Cable (37M→9M x 4, 250mm) Operating environment CAUTION Operating Systems: Window Vista, XP, Server 2003, 2000 You can download the latest software versions from The SG lines for CH1 - CH4 of the option cable are not CONTEC’s document site connected to the cable shielding. However, the frame of (http://www.contec.com/comdrv/). each connector is connected to the shielding. This For more details on supported operating systems, means that the cable shielding is connected to the body of applicable languages and new information, please visit the PC via the frame of the interface connector. CONTEC’s Web site. Note that the option cable is not a twisted-pair cable. Connecting directly to the port connector If connecting an external device directly from the Optional Cables and Connectors connector on the board, use a CN5-D9F or equivalent connector. Connection Conversion Cable (37M→9M x 4, 250mm) : PCE37/9PS Pin Assignment Five 9-pin D-SUB (female) connectors:CN5-D9F Interface Connector < COM-4DL-PCI > Five 37-pin D-SUB (male) connectors:CN5-D37M Screw nut: UNC#4-40 (inch screw) 37 19 Packing List -Board (COM-4DL-PCI) …1 - Connector used 37-pin D-SUB, female connector -First step guide …1 20 1 2031-2-37-S (mfd. by gallant) equivalent -COM Setup Disk (CD-ROM *1) …1 -Distribution cable (0.25m) …1 - Applicable connector 17JE-23370-02(D8C) (mfd. by DDK, Male) FDCD-37P (mfd. by HIROSE, Male) DC-37P-N (mfd. by JAE, Male) *1:The CD-ROM contains the driver software and User’s CN5-D37M (mfd. by CONTEC, Male) (Five connector set) Guide. 19 RTS1- CH1 Request to Send - CH1 Request to Send + RTS1+ 37 18 CTS1+ CH1 Clear to Send + CH1 Receive Data + RxD1+ 36 17 CTS1- CH1 Clear to Send - CH1 Transmit Data - TxD1- 35 16 TxD1+ CH1 Transmit Data + CH1 Signal Ground SG 1 34 15 RxD1- CH1 Request to Send - CH2 Request to Send - RTS2- 33 14 RTS2+ CH2 Request to Send + CH2 Clear to Send + CTS2+ 32 13 RxD2+ CH2 Receive Data + Connection to External Devices CH2 Clear to Send - CTS2- 31 12 TxD2- CH2 Transmit Data - CH2 Transmit Data + TxD2+ 30 11 SG 2 CH2 Signal Ground CH2 Receive Data - RxD2- 29 10 RTS4- CH4 Request to Send - CH4 Request to Send + RTS4+ 28 In addition to connecting directly to the board’s connector, you 9 CTS4+ CH4 Clear to Send + CH4 Receive Data + RxD4+ 27 8 CTS4- CH4 Clear to Send - can also connect external devices via a connection distribution CH4 Transmit Data - TxD4- 26 7 TxD4+ CH4 Transmit Data + CH4 Signal Ground SG 4 25 6 RxD4- CH4 Receive Data - cable. CH3 Request to Send - RTS3- 24 5 RTS3+ CH3 Request to Send + CH3 Clear to Send + CTS3+ 23 4 RxD3+ CH3 Receive Data + CH3 Clear to Send - CTS3- 22 3 TxD3- CH3 Transmit Data - CH3 Transmit Data + TxD3+ 21 Using 9-pin D-SUB Connector Distribution Cable 2 SG 3 CH3 Signal Ground CH3 Receive Data - RxD3- 20 1 N.C. Use the bundled distribution cable or PCE37/9PS CN1 (purchased separately) to connect to external devices after dividing into four 9-pin D-SUB male connector channels. COM-4DL-PCI 2 . . . . Ver.1.00 Types of Cables and Connection Examples The figures below show examples of how to connect the cable for the board. The RS-422A/485 interface works based on a differential signal whereby the signal is carried by the potential difference between two lines (+ and -). Using twisted pair cable is recommended to improve resistance to noise. Example Connection RTS and CTS to a External Device in Full Duplex TxD+ TxD+ TxD- TxD- RxD+ RxD+ RxD- RxD- RTS+ RTS+ RTS- RTS- CTS+ CTS+ CTS- CTS- SG SG External device Example Connection RTS and CTS to a External Device in Full Duplex TxD+ TxD+ TxD- TxD- RxD+ RxD+ RxD- RxD- SG SG External device Example Connection in Half Duplex TxD+ TxD+ TxD- TxD- SG SG External device CAUTION If you are connecting between external devices and this board with faulty wiring, it will become the cause of failure. COM-4DL-PCI 3