Ver.1.00 This PCI board was designed for extending RS-422A/485 PCI –compliant I/O compatible serial communication functionality on your PC. RS-422A/485 2ch Serial I/O board COM-2DL-PCI has two RS-422A/485 communication COM-2DL-PCI 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 2channels Interface type RS-422A/RS-485 Isolation specification None Isolation pressure None proof Transfer method Asynchronous serial transfer (Full-duplex / Features half-duplex) Baud rate 15 - 230,400bps *1 *2 Data length 5, 6, 7, 8 bits -Max. 230,400bps RS-422A/485 Serial Communication 1, 1.5, 2 stop bits *1 Parity check Even, Odd, Non-parity *1 COM-2DL-PCI has two RS-422A/485-standard serial ports. Loarding LSI 162850 or equivalent (Each channel has 64-byte receive and 64-byte Baud rates from 15 to 230,400 bps can be set. transmit FIFO buffers.) Connecting distance Within 1200m *3 - Boards can be used as standard serial ports when Interrupt requests 1 level use *4 ® operating in a Windows environment Memory address 1024byte boundary Power consumption 5VDC 340mA These products come with a driver library that allows the (Max.) boards to be used under Windows in the same way as Operating temperature 0 - 50°C, 10 - 90%RH (No condensation) COM ports on a PC. Under Windows, these boards PCI bus specification PCI (32bit, 33MHz *5) support the OS-standard Win32 API communication Dimension (mm) 121.69(L) x 88.0(H) function as well as Visual Basic MSComm. The driver Connector used 9-pin D-SUB connector, 2031-2-9-P [mfd. by gallant, M(male) type] library also includes a diagnostic program to confirm equivalent hardware operation and to perform communication tests. Weight 95g *1: These items can be set by software. - 16 boards (max) can be installed with an access *2: Data transmission at high speed may not be performed normally range from COM1 to COM256. depending on the environment including the type of status of connected material of cable and environment. *3: The table below lists an example of the relationship between baud Up to 16 boards can be installed in a single PC. rate and communication distance. COM1 - COM256 can be set using the device manager. Communication Baud rate distance - Each channel is equipped with separate 64-byte 300m 115,200bps FIFO buffers for transmit and receive. 600m 57,600bps 900m 19,200bps 1200m 9,600bps Each individual channel has FIFO buffer memory Communication cable : 28AWG, double shielded cable, twisted (transmission: 64 bytes, reception: 64 bytes). pairs used for each +/- signal line. This feature is useful for high speed communications and *4: A single interrupt signal "INTA" is output as a collection of interrupt input signals from two channels. to reduce the load to the CPU during *5: This board requires power supply at +5 V from an expansion slot (it transmitting/receiving. does not work on a machine with a +3.3V power supply alone). - Cables and connectors are available as optional. Board Dimensions 9-pin D-SUB connectors (male or female type) for creating 121.69(L) your own cables are available as optional. -The control line for RS-422A/485 can be controlled and monitored by software. The control lines for RTS+, RTS-, CTS+, CTS- can be [mm] controlled and monitored using an application. The standard outside dimension (L) is the distance from the end of the board to the outer surface of the slot cover. COM-2DL-PCI 1 88.0(H) Ver.1.00 Support Software Connection to External Devices Standard COM Driver Software “COM Setup Disk” (Included) In addition to connecting directly to the board’s connector, you The purpose of this software is to allow the CONTEC serial can also connect external devices via a connection distribution communication boards to be used under Windows in the cable or connection distribution unit. same manner as standard computer COM ports. By installing additional boards, you can use COM ports in the Connecting directly to the port connector range COM1 - COM256. If you are connecting an external device directly with the The boards can be used for all types of serial connector on the board, make your own cable using the communications including remote access service (RAS) optional CN5-D9F connector. and uninterruptible power supply (UPS) applications. Under Windows, the serial ports can be accessed using Pin Assignment the standard Win32 API communication routines Interface Connector (CreateFile( ), WriteFile( ), ReadFile( ), and SetCommState( ), etc.) The serial ports are also Screw nut: UNC#4-40 (inch screw) compatible with Visual Basic communication control (MSComm). 1 6 CN1 Operating environment 9 5 Operating Systems: Window Vista, XP, Server 2003, 2000 You can download the latest software versions from 1 6 CONTEC’s document site CN2 (http://www.contec.com/comdrv/). 9 5 - Connector used For more details on supported operating systems, 2031-2-9-P or equivalent to it [mfd. by gallan, M(male) type] applicable languages and new information, please visit - Applicable connector 17JE-13090-02(D8C) [mfd. by DDK, F(female) type] CONTEC’s Web site. CN5-D9F (Connector five set) [CONTEC, F(female) type] Optional Cables and Connectors Pin Assignments of Interface Connector 9-pin D-SUB (female) connectors (5 peaces) 1 SG1 Signal Ground Clear to Send- CTS1- : CN5-D9F 6 2 RTS1+ Request to Send+ Clear to Send+ CTS1+ 7 3 RTS1- Request to Send- Receive Data+ RxD1+ 8 4 TxD1+ Transmit Data+ Receive Data- RxD1- 9 5 TxD1- Transmit Data- Packing List CN1 1 -Board (COM-2DL-PCI) …1 SG2 Signal Ground Clear to Send- CTS2- 6 -First step guide …1 2 RTS2+ Request to Send+ Clear to Send+ CTS2+ 7 -COM Setup Disk (CD-ROM *1) …1 3 RTS2- Request to Send- Receive Data+ RxD2+ 8 4 TxD2+ Transmit Data+ Receive Data- RxD2- 9 5 TxD2- Transmit Data- *1:The CD-ROM contains the driver software and User’s CN2 Guide. CAUTION For TxD, RxD and RTS, the positive terminal is the even numbered pin and the negative terminal is the odd numbered pin. For CTS, even-numbered pins are assigned to “-“, and the odd-numbered pins are assigned to “+”, which is in reverse from the other signals. This is however not a notation error. COM-2DL-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-2DL-PCI 3