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6.8 RS-422/485 Peripheral Connection

The QSC(LP)-200/300 is a DTE device which connects to peripheral equipment

through four female D-9 connectors. The onboard connector is a D-44 connector, which is
brought out into four separate D-9 connectors via a custom cable assembly. The pin-out for the
D-44 connector is listed in Figure 7. The serial port connections are listed in Figure 9.

X

30

nc

15

44

auxin0-

29

txd0-

14

rxd0-

43

rxd0+

28

gnd

13

txd0+

42

auxout0-

27

nc

12

41

26

txd1-

11

rxd1-

40

auxin1-

25

gnd

10

txd1+

39

rxd1+

24

nc

9

nc

38

auxout1-

23

8

37

auxin2-

22

txd2-

7

rxd2-

36

rxd2+

21

gnd

6

txd2+

35

auxout2-

20

nc

5

nc

34

19

nc

4

33

auxin3-

18

txd3-

3

rxd3-

32

rxd3+

17

gnd

2

txd3+

31

auxout3-

16

nc

1

Signal
description

Pin number

Signal
description

Pin number

Signal
description

Pin number

Figure 7. D-44 connector definitions

D-44 connector

1

44

Figure 8. D-44 pin-out.

Quatech QSC(LP)-200/300 User's Manual

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Содержание QSCLP-200

Страница 1: ...200 300 Four Channel RS 422 485 Asynchronous Communications Adapter for PCI bus User s Manual QUATECH INC TEL 330 655 9000 5675 Hudson Industrial Parkway FAX 330 655 9010 Hudson Ohio 44236 http www quatech com ...

Страница 2: ...he procedures outlined in this document during the warranty period Any damage that results from improper installation operation or general misuse voids all warranty rights Please complete the following information and retain for your records Have this information available when requesting warranty service DATE OF PURCHASE MODEL NUMBER QSC LP 200 300 PRODUCT DESCRIPTION Four Channel RS 422 485 Asyn...

Страница 3: ... made to ensure its accuracy and completeness In no event willQuatech Inc be liable for damages of any kind incidental or consequential in regard to or arising out of the performance or form of the materials presented in this document or any software programs that might accompany this document Quatech Inc encourages feedback about this document Please send any written comments to the Technical Sup...

Страница 4: ...ion of Council Directive 89 336 EEC Standards to which Conformity is Declared EN50081 1 EN55022 EN60555 2 EN60555 3 EN50082 1 IEC 801 2 IEC 801 3 IEC 801 4 Type of Equipment Information Technology Equipment Equipment Class Commercial Residential Light Industrial Product Name PCI Quad Serial Communications Card Model Number QSC LP 200 300 IND ...

Страница 5: ...dows NT 21 5 Other Operating Systems 17 4 6 1 Changing Resource Settings with Device Manager 15 4 6 Viewing Resources with Device Manager 14 4 5 Windows NT 13 4 4 Windows 1995 11 4 3 Windows 98 10 4 2 Windows 2000 9 4 1 Windows Millennium 9 Windows Configuration 8 3 Hardware Installation 7 2 1 3 Force High Speed UART Clock X8 pins 17 and 18 6 2 1 2 TGL 1 2 3 4 pins 1 and 2 5 and 6 9 and 10 13 and ...

Страница 6: ...31 9 Troubleshooting 30 8 Specifications 29 Base Address and Interrupt Level IRQ Quatech QSC LP 200 300 User s Manual 4 ...

Страница 7: ...he 16750 contains a 16 byte FIFO and can transmit and receive data at a rate of up to 921 600 bits per second The 16750 is recommended for heavy multitasking environments and for applications involving high data rates The QSC LP 200 300 is supported under several popular operating systems and environments Contact the sales department for details on current software offerings Most device drivers ar...

Страница 8: ...pport RTS CTS handshaking external clocking or external signal loopback The factory default configuration as shown in Figure 2 with no jumpers across any of the pins is a loopback of AUXOUT to AUXIN at the connector with RTS and CTS looped back on the board There is an extensive discussion of this topic in section 6 Jumper J1 defines the options for this card TGL1 AUX1 TGL2 AUX2 TGL3 AUX3 TGL4 AUX...

Страница 9: ... written to the Options Register to set the clock multiplier by software The effective baud rate will be eight times the value for which the UART itself is programmed If selected the clock multiplier will be applied to all ports on the card it is not possible to selectively apply the clock multiplier to a specific port The factory default is no jumper applied which allows for software control of t...

Страница 10: ...expansion slot The board should be secured by installing the Option Retaining Bracket ORB screw 5 Replace the system cover according to the instructions provided by the computer manufacturer 6 Attach and secure the cable connectors to the desired equipment 7 Turn on the power of the computer system The output of the QSC LP 200 300 is a 44 pin custom connector which is brought out to four 9 pin D c...

Страница 11: ... Select Search for the best driver for your device Check the Removable media and Specify location box Click the Next button 2 Window will locate the proper INF file and copy the file from the CD Click the Next button 3 The final dialog screen will verify the file copy from theCD Click the Finish button Quatech QSC LP 200 300 User s Manual 9 ...

Страница 12: ... box appears insert the Communications Driver CD shipped with the device Click the OK button 3 The following dialog box will display the appropriate INF file on the CD in drive Click the OK button 4 Window will copy the INF file from the cd and display a final dialog indication that the process is complete Click the Finish button Quatech QSC LP 200 300 User s Manual 10 ...

Страница 13: ...ar at start up Click the Next button 2 Select Search for the best driver for you device Click the Next button 3 On the next dialog select the CD ROM drive check box Insert the Communication Drivers CD shipped with the device into the CD ROM drive Click the Next button Quatech QSC LP 200 300 User s Manual 11 ...

Страница 14: ... the appropriate INF file on the cd in drive Click the Next button 5 Window will copy the INF file from the cd and display a final dialog indication that the process is complete Click the Finish button Quatech QSC LP 200 300 User s Manual 12 ...

Страница 15: ...x may simply indicate that it has found a PCI Card 2 Select the radio button for Driver from disk provided by hardware manufacturer Click the OK button to continue 3 An Install From Disk dialog box should pop up Insert the cd with the Quatech INF files on it select the correct drive letter and click the OK button Windows 95 automatically browses the root directory for an INF file that defines conf...

Страница 16: ...hese drivers are currently in the WINDOWS SYSTEM directory 9 The New Hardware Found dialog will repeat as each serial port is registered with Windows 95 10 Installation is complete 4 5 Windows NT The Windows NT device driver is installed by running the SETUP program Up to 256 serial ports are supported There is a command line based configuration utility which is used for adding PCI bus and ISA bus...

Страница 17: ...vices by right clicking on the device name and then selecting Properties from the pop up menu 3 Double click the device group Multi function Adapters The QSC LP 200 300 parent device belongs to this hardware class The full device name for the QSC LP 200 300 is Quatech QSC LP 200 300 PCI Four Port RS 422 RS485 Serial Adapter 4 Double click the QSC LP 200 300 name and a properties dialog should open...

Страница 18: ...vels to be configured The threshold values of full scale for the transmit buffer and scale for the receive buffer are optimal for most applications Note that the FIFO option for each of the QSC LP 200 300 s four ports is configured independently 9 Use the Logical COM Port names to access the serial ports on your QSC LP 200 300 through your software applications Note The Logical COM Port name is as...

Страница 19: ...hardware class The full device name for the QSC LP 200 300 is Quatech QSC LP 200 300 Four Port RS 422 485 Serial Adapter 4 Open the Properties dialog for the QSC LP 200 300 device then click the Resources tab to view the Input Output Range and Interrupt Request resource allocations 5 Open the Properties dialog for the QSC LP 200 300 device Figure 12 then click the Advanced tab to view the clock ra...

Страница 20: ...ays be double the rate requested by the applications This mode is useful for legacy applicattions which cannot request baud rates over 115 200 230 400 X2 The X1 clock mode mimics a standard COM port The hardware drivers lock the clock to the standard rate The port will run at the baud rate requested by the application 115 200 X1 Auto clock mode enables applications to request any baud rate up to 9...

Страница 21: ...itting at different baud rates In order to function all ports must have and use this feature Clocks RTS routed to AUXOUT AUXIN routed to CTS and TCLK routed to RCLK Used when RTS CTS handshaking is required Modem Control RTS routed to CTS AUXIN routed to AUXOUT and TCLK routed to RCLK Used when external handshaking or clocking signals are not available Loopback All RS 422 485 Connector Setup Quate...

Страница 22: ...red for either full duplex or half duplex operation with this option The default setting is the RS 422 485 ports are configured for full duplex operation with the RS 422 485 output drivers always enabled In half duplex mode the RS 422 485 transmitter may be enabled and disabled via the RTS request to send or DTR data terminal ready signals or in auto toggle mode set to enable only when data is bei...

Страница 23: ... fixed at values such as 3F8 hex IRQ 4 COM1 or 2F8 hex IRQ 3 COM2 etc Rather the system BIOS assigns the address and the IRQ in a plug and play fashion at boot time Software which is to use the QSC LP 200 300 must be able to accommodate any valid assignments of these resources For Windows 95 Windows NT and OS 2 the Quatech device drivers determine what the resource assignments are and proceed acco...

Страница 24: ...been pressed In this example the QSC LP 200 300 uses I O base address FFA0 hex and IRQ 3 The hardware revision of the QSC LP 200 300 is also displayed Pressing the N key will show similar information for all non Quatech PCI devices in the system including those devices integrated on the motherboard The QTPCI program is capable only of displaying the PCI configuration It cannot be used to make chan...

Страница 25: ...egions etc Pressing the N key will show similar information for all non Quatech PCI devices in the system including those devices integrated on the motherboard In this example the Baseaddr 0 resource is reserved For users interested in even more details PCI BIOS information can be displayed by pressing the B key Pressing the I key displays thePCI interrupt routing table Figure 5 QTPCI EXE Expert M...

Страница 26: ...ross any of the pins in J1 is for both the drivers and receivers of both channels to be continuously enabled These option are not selectable via jumpers they are only accessable through Device Manager under Window operating systems 6 2 RTS CTS Handshake Transmission of RTS combined with reception of CTS allows for hardware handshaking data flow control between the UART and the external device RTS ...

Страница 27: ...ers and receivers of each channel can be forced into Auto Toggle mode Additionally operation in either half duplex or full duplex modes can be implemented via Soft Select which is accessable via Device Manager under the Windows operating system The transmit drivers can be controlled by either the Data Terminal Ready DTR or the Request to Send RTS output from the UART When disabled the transmit dri...

Страница 28: ...ernal connector Any termination which is required must be added externally RS 422 485 Receiver Rt RXD RXD RS 422 485 Receiver Rt AUXIN AUXIN RS 422 100 ohm 1 2W resistor RS 485 60 ohms total resistance 120 ohms at each end Recommended Termination Resistor Values Figure 6 RS 422 485 Termination 12 Quatech QSC LP 200 300 User s Manual 26 ...

Страница 29: ...e 9 X auxin3 30 nc 15 auxout0 44 auxin0 29 txd0 14 rxd0 43 rxd0 28 gnd 13 txd0 42 auxout0 27 nc 12 auxout1 41 auxin2 26 txd1 11 rxd1 40 auxin1 25 gnd 10 txd1 39 rxd1 24 nc 9 nc 38 auxout1 23 auxin1 8 auxout2 37 auxin2 22 txd2 7 rxd2 36 rxd2 21 gnd 6 txd2 35 auxout2 20 nc 5 nc 34 auxin0 19 nc 4 auxout3 33 auxin3 18 txd3 3 rxd3 32 rxd3 17 gnd 2 txd3 31 auxout3 16 nc 1 Signal description Pin number S...

Страница 30: ...e serial port connector definitions are listed in Figure 10 3 GND 9 AUXIN 5 AUXIN 6 AUXOUT 1 AUXOUT 8 RxD 4 RxD 7 TxD 2 TxD D 9 Connector Pin SignalDescription Figure 9 QSC LP 200 300 connector definitions 1 2 3 4 5 6 7 8 9 male D 9 connector Figure 10 QSC LP 200 300 output connectors Quatech QSC LP 200 300 User s Manual 28 ...

Страница 31: ...in eight byte increments along with a sixteen byte reserved region for a total of 32 contiguous bytes as shown in Figure 11 Base Address 24 to Base Address 31 Serial 4 Base Address 16 to Base Address 23 Serial 3 Base Address 08 to Base Address 15 Serial 2 Base Address 00 to Base Address 07 Serial 1 I O Address Range Port Figure 11 Serial Port I O addresses Both serial ports share the same IRQ The ...

Страница 32: ...ectors Transceivers MAX 3076E or compatible Differential output 2V min with 50 ohm load RS 422 1 5V min with 27 ohm load RS 485 Output rise fall time 15ns max Differential input threshold 0 2V min 0 05V max Input resistance 96k ohm min Input current 100 microAmps min 125 microAmps Power requirements 5 volts approx 250 mA Temperature operating 0 to 70 storage 50 to 80 Humidity 10 to 90 Quatech QSC ...

Страница 33: ...SC LP 200 300 An address conflict is unlikely because most PCI based computers will assign I O addresses in such a way that they cannot conflict with ISA bus devices 3 The QSC LP 200 300 may be defective Contact technical support for instructions Cannot communicate with other equipment 1 Are the cable connections correct Are the cables securely attached 2 Is the software configured with the correc...

Страница 34: ...QSC LP 200 300 User s Manual Revision 1 14 November 2006 940 0146 114 Quatech QSC LP 200 300 User s Manual 32 ...

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