Xtreme/0 PC/0 Serial Communications User Manual Connect Tech Inc Arrow Road Guelph, Ontario NK S Tel: 59-83-9 Toll: 800--8979 (North America only) Fax: 59-83-878 Email: sales@connecttech.com support@connecttech.com URL: www.connecttech.com CTIM-00003, Revision 0.05 October, 00 Revision 0.05
Limited Lifetime Warranty Connect Tech Inc. provides a Lifetime Warranty for all Connect Tech Inc. products. Should this product, in Connect Tech Inc.'s opinion, fail to be in good working order during the warranty period, Connect Tech Inc. will, at its option, repair or replace this product at no charge, provided that the product has not been subjected to abuse, misuse, accident, disaster or non Connect Tech Inc. authorized modification or repair. You may obtain warranty service by delivering this product to an authorized Connect Tech Inc. business partner or to Connect Tech Inc. along with proof of purchase. Product returned to Connect Tech Inc. must be pre-authorized by Connect Tech Inc. with an RMA (Return Material Authorization) number marked on the outside of the package and sent prepaid, insured and packaged for safe shipment. Connect Tech Inc. will return this product by prepaid ground shipment service. The Connect Tech Inc. Lifetime Warranty is defined as the serviceable life of the product. This is defined as the period during which all components are available. Should the product prove to be irreparable, Connect Tech Inc. reserves the right to substitute an equivalent product if available or to retract Life Time Warranty if no replacement is available. The above warranty is the only warranty authorized by Connect Tech Inc. Under no circumstances will Connect Tech Inc. be liable in any way for any damages, including any lost profits, lost savings or other incidental or consequential damages arising out of the use of, or inability to use, such product. Copyright Notice The information contained in this document is subject to change without notice. Connect Tech Inc. shall not be liable for errors contained herein or for incidental consequential damages in connection with the furnishing, performance, or use of this material. This document contains proprietary information that is protected by copyright. All rights are reserved. No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of Connect Tech, Inc. Copyright 997-00 by Connect Tech, Inc. Trademark Acknowledgment Connect Tech, Inc. acknowledges all trademarks, registered trademarks and/or copyrights referred to in this document as the property of their respective owners. Not listing all possible trademarks or copyright acknowledgments does not constitute a lack of acknowledgment to the rightful owners of the trademarks and copyrights mentioned in this document. Revision 0.05
Certification Xtreme/0; Xtreme/0 RS-3 The Xtreme/0 product family is to be included into a device ultimately subject to FCC, DOC/IC, and CE certification. The customer is responsible for bringing the completed device into compliance prior to resale. Connect Tech has designed the Xtreme/0; Xtreme/0 RS-3 with EMI and EMC considerations such as: Ground and power planes Controlled slew-rate signals EMI/EMC reducing PCB layout Revision 0.05 3
Table of Contents Limited Lifetime Warranty... Copyright Notice... Trademark Acknowledgment... Certification...3 Table of Contents... List of Figures...5 List of Tables...5 Customer Support Overview... Contact Information... Introduction...7 Features...7 Xtreme/0 Diagrams...8 Hardware Installation...0 Port Addresses...0 Status Port Addresses...0 Custom Port Addresses...0 Interrupt Selection... Mode (one IRQ):... Mode (two IRQs):... Mode 3 (two IRQs):... Baud Rate Selection...3 Software Installation... Specifications...5 Operating Environment...5 Power Requirements...5 PC Bus Interface...5 Communications...5 UARTs...5 RS-3 (Xtreme/0; Xtreme/0 RS-3)...5 RS-/85 (Xtreme/0)...5 Control Signals...5 Dimensions... Connectors/Interface... Part Numbers... Xtreme/0 (four port model)... Xtreme/0 (eight port model)... Xtreme/0 RS-3 (four port model)... Xtreme/0 RS-3 (eight port model)... Connectors/Pinouts...7 Factory Default Settings...9 RS-3/RS-/85 Interfaces...0 Electrical Interface Selection...0 Half Duplex RS-/85...0 Line Termination... RS-/85 Cable Wiring... Revision 0.05
List of Figures Figure : Xtreme/0 Adapters... 8 Figure : Xtreme/0 RS-3 models... 9 Figure 3: Examples of port address settings... Figure : Examples of IRQ settings... Figure 5: Example of baud rate selection... 3 Figure : Example of electrical interface selection... 0 Figure 7: Example of half duplex setting... 0 Figure 8: Example of line termination setting... Figure 9: RS-/85 wiring diagram ( wire)... Figure 0: RS-/85 wiring diagram ( wire)... List of Tables Table : Port Address Settings... Table : Baud rates... 3 Table 3: HD/HD; P/P - 0 pin port header pinouts... 7 Table : DB-9 cable connector pinouts... 8 Table 5: Factory default settings... 9 Revision 0.05 5
Customer Support Overview If you experience difficulties after reading the manual and/or using the product, contact the Connect Tech reseller from which you purchased the product. In most cases the reseller can help you with product installation and difficulties. In the event that the reseller is unable to resolve your problem, our highly qualified support staff can assist you. Our support section is available hours a day, 7 days a week on our website at: www.connecttech.com/sub/support/support.asp. See the contact information section below for more information on how to contact us directly. Our technical support is always free. Contact Information We offer three ways for you to contact us: Mail/Courier You may contact us by letter at: Connect Tech Inc. Technical Support Arrow Road Guelph, Ontario Canada NK S Email/Internet You may contact us through the Internet. Our email and URL addresses on the Internet are: sales@connecttech.com support@connecttech.com www.connecttech.com Note: Please go to the Download Zone or the Knowledge Database in the Support Center on the Connect Tech website for product manuals, installation guides, device driver software and technical tips. Submit your technical support questions to our customer support engineers via the Support Center on the Connect Tech website. Telephone/Facsimile Technical Support representatives are ready to answer your call Monday through Friday, from 8:30 a.m. to 5:00 p.m. Eastern Standard Time. Our numbers for calls are: Telephone: 800--8979 (North America only) Telephone: 59-83-9 (Live assistance available 8:30 a.m. to 5:00 p.m. EST, Monday to Friday) Facsimile: 59-83-878 (on-line hours) Revision 0.05
Introduction Features Xtreme/0 adapters are high performance multi-port serial adapters in a PC/0 form factor that enable you to connect up to 8 serial devices to your PC-based system. They provide a high speed interface between your host computer and multiple external serial devices or 8 asynchronous serial ports. Hardware configurable RS-3 and RS-/85 electrical interfaces. The interfaces are jumper selectable for each port. (Xtreme/0 RS-3 adapters have an RS-3 only electrical interface.) Multiple Xtreme/0; Xtreme/0 RS-3 adapters may reside in a system. C5 quad UARTs control each port. The C5 quad UART has byte TxD and RxD FIFO buffers for each port and automatic software/hardware flow control. Each port has independent baud rate selection offering baud rates from 50 30. Kbps (RS-3) and 50 0.8 Kbps (RS-/85), with 5,, 7 or 8 data bits and,.5, stop bits, odd or even parity. On board jumpers allow the selection of 8 predefined I/O address sets. On board jumpers allow the selection of or IRQ lines. You can choose from interrupts 3,, 5,, 7, 9, 0,,, and 5. Driver support for Windows 95/98/Me/CE/CE.NET/XP/XPe/NT/000/. Also compatible with operating systems featuring 50/550 serial drivers such as: Linux, BSD/OS, QNX, DOS, Solaris, OS/ (3 RD party driver) and SCO Unix. Revision 0.05 7
Xtreme/0 Diagrams Figures and show the locations of various hardware components found on the Xtreme/0 and Xtreme/0 RS-3 boards. Figure : Xtreme/0 Adapters Xtreme/0 (four port model) C5 Quad UART I/O address/irq Mode/Clock Select jumper block Half Duplex Select jumper block Pin 0 HD J J Ports to 0 pin connector Pin RS-3 enable jumper block (ports to ) J5 J 3 5 7 9 0 5 C A D B Tx & Rx Terminators Select jumper block PC/0 bus connector Xtreme/0 (eight port model) C5 Quad UART I/O address/irq Mode/Clock Select jumper block Half Duplex Select jumper block C5 Quad UART Pin 0 HD J J HD Pin Ports to 0 pin connector Ports 5 to 8 0 pin connector (Extreme-8/0 only) Pin J5 J Pin 0 RS-3 enable jumper block (ports to ) J J3 3 5 7 9 0 5 C D A B RS-3 enable jumper block (ports 5 to 8 - Extreme-8/0 only) Tx & Rx Terminators Select jumper block (ports to ) PC/0 bus connector Tx & Rx Terminators Select jumper block (ports 5 to 8 - Extreme-8/0 only) 8 Revision 0.05
Figure : Xtreme/0 RS-3 models Xtreme/0 RS-3 (four port model) C5 Quad UART I/O address/irq Mode/Clock Select jumper block JB Pin 0 Ports to 0 pin connector Pin P 0 5 JB3 D C JB A B 9 7 5 3 PC/0 bus connector C5 Quad UART Xtreme/0 RS-3 (eight port model) I/O address/irq Mode/Clock Select jumper block JB C5 Quad UART Pin 0 Pin Ports to 0 pin connector Ports 5 to 8 0 pin connector Pin P P Pin 0 0 5 JB3 D C JB A B 9 7 5 3 PC/0 bus connector Revision 0.05 9
Hardware Installation Before you begin, take a minute to ensure that your package includes the required components that should have shipped with your Xtreme/0. One Xtreme/0 adapter or Xtreme/0 RS-3 adapter One CD containing software and documentation One DB-9 cable (optional) If any of these components is missing, contact Connect Tech (See Contact Details) or your reseller. Also, visit the Download Zone of the Support Center on the Connect Tech website for the latest product manuals, installation guides, diagnostic utilities and device driver software. Port Addresses Notes:. Please refer to the RS-3/ /85 Interfaces section in the back of the manual for more information concerning RS-3 and RS-/85 settings for the Xtreme/0 adapter.. Please refer to the Factory Default Settings section in the back of the manual concerning the factory settings for the Xtreme/0 adapter. Port addresses are configured with the jumper block J or JB on the Xtreme/0 or Xtreme/0 RS-3 adapter respectively. Jumpers 0,, and select a set of port addresses for the ports. Status Port Addresses Some operating system device drivers can utilize an Interrupt Status Port, for example Windows NT offers it as an option and for SCO Unix it is mandatory. This can improve your system s efficiency. The Xtreme/0 and Xtreme/0 RS-3 offer a status port and this port is enabled and disabled using jumper 5 on jumper block J or JB. Please refer to Table for a list of supported status port addresses and to Figure or Figure for a description and location of jumper block J and JB. Note: Please make certain that the Status Port Enable jumper is disabled if your application is not using the Status Port. This eliminates the possibility of an address conflict with another device in your system. Custom Port Addresses You can generate other port addresses by making changes to the CPLDs found on the Xtreme/0 and Xtreme/0 RS-3 adapter. If you require specific port addresses not listed in Table please contact a Connect Tech Customer Service Representative for further information. 0 Revision 0.05
Table : Port Address Settings Jumper Ports 0 3 5 7 8 Status on on on 50 58 0 8 70 78 80 88 90 on on off 50 58 0 8 70 78 80 88 90 on off on A0 A8 B0 B8 C0 C8 D0 D8 E0 on off off A0 A8 B0 B8 C0 C8 D0 D8 E0 off on on 00 08 0 8 0 8 30 38 0 off on off 00 08 0 8 0 8 30 38 0 off off on 380 388 390 398 3A0 3A8 3B0 3B8 3C0 off off off 300 308 30 38 30 38 330 338 30 Figure 3: Examples of port address settings Example Example The following example The following example shows the port address shows the port address jumper block set for the jumper block set for port factory setting of port addresses 00, 08, 0, addresses A0, A8, B0, 8, 0, 8, 30, 38 B8, C0, C8, D0, D8 (hex) and status port 0 (hex) and status port (hex) enabled. disabled J or JB J or JB 0 3 I/O address select I/O address select I/O address select 0 3 I/O address select I/O address select I/O address select 5 Status port enable 5 Status port enable 7 Position 7 is not available on the Xtreme/0 3 7 Position 7 is not available on the Xtreme/0 3 Interrupt Selection You can configure an interrupt request line (IRQ) with jumper blocks J or JB, AB and CD on the Xtreme/0 and Xtreme/0 RS-3 adapter. Please refer to Figure and Figure to locate jumper blocks J, JB, AB and CD. You are able to configure the Xtreme/0 and Xtreme/0 RS-3 adapter for three different IRQ modes. Mode (one IRQ):. Ensure there are no jumpers across positions 3 and on the J or JB jumper block.. All ports interrupting on one IRQ by setting jumpers on the A or C rows and the middle rows of IRQ blocks AB and CD. Revision 0.05
Mode (two IRQs):. Jumper position 3 on the J or JB jumper block.. The odd ports (ports, 3, 5, & 7) interrupt on one IRQ by setting jumpers on the A or C rows and the middle rows of IRQ blocks AB and CD. 3. The even ports (ports,,, & 8) interrupt on one IRQ by setting jumpers on the B or D rows and the middle rows of IRQ blocks AB and CD. Mode 3 (two IRQs):. Jumper position on the J or JB jumper block. The first four ports (ports,, 3, ) interrupt on one IRQ by setting jumpers on the A or C rows and the middle rows of IRQ blocks AB and CD. 3. The last four ports (ports 5,, 7, 8) interrupt on one IRQ by setting jumpers on the B or D rows and the middle rows of IRQ blocks AB and CD. Figure : Examples of IRQ settings Example: Mode one IRQ The following example shows the settings on J or JB and the IRQ jumper blocks so that all ports will interrupt on IRQ. 0 J Xtreme/0 0 JB Xtreme/0 3 3 C 3 5 7 9 3 A 9 7 5 3 5 D 5 B 7 Example: Mode two IRQs The following example shows the settings on J or JB and the IRQ jumper blocks so that ports, 3, 5, 7 will interrupt on IRQ 7 and ports,,, 8 will interrupt on IRQ. 0 3 5 7 J Xtreme/0 C D 0 3 5 7 9 5 A B 0 3 5 JB Xtreme/0 3 A B 9 7 5 3 0 5 Example: Mode 3 two IRQs The following example shows the settings on J or JB and the IRQ jumper blocks so that ports,, 3, interrupt on IRQ 7 and ports 5,, 7, 8 interrupt on IRQ 0. D C Xtreme/0 Xtreme/0 3 0 3 5 7 J C D 0 3 5 7 9 5 A B 0 3 5 JB A B 9 7 5 3 0 5 D C Revision 0.05
Baud Rate Selection The Xtreme/0 is capable of baud rates up to 0.8 Kbps (X oscillator) or 5. Kbps (X oscillator). The Xtreme/0 RS-3 is capable of baud rates up to 30. Kbps (X oscillator) or 5. Kbps (X oscillator). These baud rate limits depend on whether you install a shorting block across position on the J or JB jumper block. Please refer to Figure and Figure for the location of jumper block J or JB. Please refer to Table for a list of standard and extended baud rates for the Xtreme/0 and Xtreme/0 RS-3. Figure 5: Example of baud rate selection Example J/JB 0 3 5 7 I/O address/irq/clock Select jumper block jumper installed - 0.8 KBPS max (RS 30. KBPS max (RS Clock select jumper not installed - 5. KBPS max Position 7 is not av ailable on the Xtreme/0 3 Table : Baud rates Standard Baud Rate (J/JB not jumpered) Max. Baud Rate (J/JB jumpered) 50 00 75 300 50 00 300 00 00 00 00 800 00 900 800 9.K 700 8.8K 900 38.K 9.K 7.8K 38.K 53.K 57.K 30.K 5.K 0.8K * * This baud rate is only possible with RS-/85 on the Xtreme/0 adapter. Revision 0.05 3
Software Installation Xtreme/0 adapters are standard multi-port serial adapters that utilize C5 quad UARTS. In many cases, users have software that will interface directly to the Xtreme/0 adapters. Many operating systems come with handlers to control access to multiple 550 style UARTS. If you require further information please contact Connect Tech Customer Support. Technical Tips: Your Xtreme/0 adapter may ship with a CD that includes howto.txt or readme.txt files. Please examine these files for technical tips or release notes concerning installation and configuration of various device drivers and software utilities. If you did not receive a driver diskette or CD for your operating system or you require additional information, please go to the Download Zone of the Support Center on the Connect Tech website for product manuals, installation guides, diagnostic utilities and device driver software. Revision 0.05
Specifications Operating Environment Storage temperature: -5 C to 50 C Operating temperature: 0 C to 70 C (standard version) -0 C to 85 C (industrial version) Humidity: 0 to 90% relative humidity, non-condensing Power Requirements Xtreme/0; Xtreme/0 RS-3 +5 VDC +/-5% @ 55 ma (max.) +5 VDC +/-5% @ 3 ma (max.) PC Bus Interface PC interrupts are jumper selectable, (3,, 5,, 7, 9, 0,,,, 5) Base address for I/O ports is jumper selectable, requires 8 addresses One bit PC/0 expansion connector Communications UARTs C5 quad UARTs communication controllers On chip byte TxD and RxD FIFO buffers per port Automatic RTS/CTS (Hardware) flow control Automatic XON/XOFF (Software) flow control Compatible with 550 style software drivers RS-3 (Xtreme/0; Xtreme/0 RS-3) Programmable baud rate generator - up to 30..8 Kbps on all RS-3 ports Full duplex, point to point RS-/85 (Xtreme/0) Programmable baud rate generator - up to 0.8 Kbps on all RS-/85 ports Full duplex, point to point or multi-drop Half duplex, point to point or multi-drop Jumper selectable RxD and TxD line termination resistors Compatible with RS- Control Signals RS-3 TxD; RxD; RTS; CTS; DTR; DCD; DSR; RI RS-/85 RTS ±; TxD ±; CTS ±; RxD ± Revision 0.05 5
Dimensions Xtreme/0; Xtreme/0 RS-3 PCB Length: 9.58 cm (3.775 inches) Height: 9.00 cm (3.55 inches) Compliant to PC/0 Specification.3 Connectors/Interface Xtreme/0; Xtreme/0 RS-3 (four port models) One 0 pin header connectors Xtreme/0; Xtreme/0 RS-3 (eight port models) Two 0 pin header connectors Part Numbers Xtreme/0 (four port model) 009000 Xtreme/0, ports, C5 UARTs, with cable Xtreme/0 (eight port model) 0089000 Xtreme/0, 8 ports, C5 UARTs, with cable Xtreme/0 RS-3 (four port model) 000000 Xtreme/0, port, RS-3, C5 UARTs, with cable Xtreme/0 RS-3 (eight port model) 0080000 Xtreme/0, 8 port, RS-3, C5 UARTs, with cables Revision 0.05
Connectors/Pinouts Table 3: HD/HD; P/P - 0 pin port header pinouts Port No. Pin No. RS-3 Direction RS-/85 Direction or 5 DCD input RxD (+) input or 5 DSR input CTS (-) input or 5 3 RxD input RxD (-) input or 5 RTS output RTS (+) output or 5 5 TxD output TxD (+) output or 5 CTS input CTS (+) input or 5 7 DTR output TxD (-) output or 5 8 RI input RTS (-) output or 5 9 SG signal gnd. SR signal reference or 5 0 N/C N/C N/C N/C or DCD input RxD (+) input or DSR input CTS (-) input or 3 RxD input RxD (-) input or RTS output RTS (+) output or 5 TxD output TxD (+) output or CTS input CTS (+) input or 7 DTR output TxD (-) output or 8 RI input RTS (-) output or 9 SG signal gnd. SR signal reference or 0 N/C N/C N/C N/C 3 or 7 DCD input RxD (+) input 3 or 7 DSR input CTS (-) input 3 or 7 3 RxD input RxD (-) input 3 or 7 RTS output RTS (+) output 3 or 7 5 TxD output TxD (+) output 3 or 7 CTS input CTS (+) input 3 or 7 7 DTR output TxD (-) output 3 or 7 8 RI input RTS (-) output 3 or 7 9 SG signal gnd. SR signal reference 3 or 7 30 N/C N/C N/C N/C or 8 3 DCD input RxD (+) input or 8 3 DSR input CTS (-) input or 8 33 RxD input RxD (-) input or 8 3 RTS output RTS (+) output or 8 35 TxD output TxD (+) output or 8 3 CTS input CTS (+) input or 8 37 DTR output TxD (-) output or 8 38 RI input RTS (-) output or 8 39 SG signal gnd. SR signal reference or 8 0 N/C N/C N/C N/C 39 37 35 33 3 View facing 0 pin connector 9 7 5 3 9 7 5 3 9 7 5 3 0 38 3 3 3 30 8 0 8 0 8 Printed circuit board Revision 0.05 7
Table : DB-9 cable connector pinouts Pin RS-3 Direction RS-85/ Direction No. Signal Signal DCD input RxD (+) input RxD input RxD (-) input 3 TxD output TxD (+) output DTR output TxD (-) output 5 SG signal ground SR signal reference DSR input CTS (-) input 7 RTS output RTS (+) output 8 CTS input CTS (+) input 9 RI input RTS (-) output Male DB-9 Connector 5 9 View facing 0 pin connector 39 37 35 33 3 9 7 5 3 9 7 5 3 9 7 5 3 0 38 3 3 3 30 8 0 8 0 8 Printed circuit board Cable header Arrow Ribbon Cable CAB80 Red Stripe (Pin #) Part Number: CAB80 Technical Tip: The red stripe on the CAB80 cable indicates pin on the 0 pin header connector. Please ensure that you terminate the DCD or CTS signals if your application does not use them. The common way to do this is to connect DCD to DTR and/or to connect CTS to RTS. Failure to do so may result in a loss of a performance on your Xtreme/0; Xtreme/0 RS-3 adapter. 8 Revision 0.05
Factory Default Settings Table 5: Factory default settings Function I/O Port Address Status Port Address Baud Rate Factory Setting J or JB is set for I/O port addresses 300, 308, 30, 38, 30, 38, 330, 338 hex and the status port disabled (positions 0,,, not jumpered) J or JB is set for the status port disabled (position 5 not jumpered) J or JB is set for the maximum baud rate of 5. Kbps (position not jumpered) IRQs Electrical Interface Half Duplex Termination. J or JB set for all ports interrupting on a single interrupt (positions 3 & not jumpered). AB and CD blocks set for no interrupts (all positions not jumpered) J and J3 set for all ports RS-/85 - all positions not jumpered (Xtreme/0 adapters only) J set for all ports running in full duplex mode - all positions not jumpered (Xtreme/0 adapters only) J5 and J set for all ports being not terminated. - all positions not jumpered (Xtreme/0 adapters only) Note: Pleases see Figure and Figure for the locations of these jumper blocks. Revision 0.05 9
RS-3//85 Interfaces Electrical Interface Selection The Xtreme/0 adapter provides jumper selectable RS-3//85 electrical interfaces on each port. The Xtreme/0 RS-3 adapter provides only a RS-3 electrical interface so the information contained in this section does not apply to Xtreme/0 RS-3 adapters. Jumper blocks J and J3 set the electrical interfaces for the individual ports. Jumpers installed across positions on J and J3 enable the RS-3 interface for that port, while jumpers not installed across positions enable the RS-/85 interface for that port. Figure shows the locations of jumper blocks J and J3. Figure : Example of electrical interface selection Example Example The following example shows The following example shows the settings on J and J3 the settings on J and J3 jumper blocks so that ports, jumper blocks so that ports,, 3,, 5,, 7, 8 are set for, 3, are set for RS-3 and RS-3. ports 5,, 7, 8 are set for RS- /85. P P P3 P J RS-3 Enable jumper blocks J3 P8 P7 P P5 P P P3 P J RS-3 Enable jumper blocks J3 P8 P7 P P5 Technical Note: You can set up the RS-3 serial ports to run at up to 30. Kbps, but you must use good quality serial cables with lengths that do not exceed metres. Half Duplex RS-/85 You can set jumper block J to run individual RS-/85 ports in half duplex mode. In this mode the transmitter and receiver circuits are controlled by RTS and DTR. Your software application must control these signals as follows: DTR must be turned off to enable half duplex RTS must be turned on prior to and during transmission to cause the transmit driver to enable and the receiver to disable. RTS must be turned off when not transmitting to cause the transmit driver to disable (tri-stated) and the receiver to enable. The application is responsible for timing the RTS toggle. Figure 7: Example of half duplex setting Example The following example shows the settings on J where RS-/85 ports 5,, 7, 8 are set for half duplex mode. Ports,, 3, are RS-3 and therefore should not be set for half duplex. P8 P7 P P5 P P3 P P J Half Duplex Select 0 Revision 0.05
Line Termination Jumper blocks J5 and J can terminate the transmitters and receivers on the individual RS- /85 ports through jumper selectable 0 Ω fixed resistors. Please refer to Figure for the location of J5 and J. Figure 8: Example of line termination setting Example The following example shows the settings on J5 and J where RS-/85 ports 5,, 7, 8 are terminated. Ports,, 3, are RS-3 and therefore should no be terminated with resistors RX P TX RX P3 TX RX P TX RX P TX J5 Tx and Rx Terminators (0 Ω) J TX P5 RX TX P RX TX P7 RX TX P8 RX Revision 0.05
RS-/85 Cable Wiring Figure 9 depicts a wire cabling scheme between a port on the Xtreme/0 adapter to a port on the RS-/85 peripheral. Figure 9: RS-/85 wiring diagram ( wire) Xtreme/0 adapter RS-/85 peripheral 3 7 8 9 5 TxD + TxD - RxD + RxD - RxD + TxD + RxD - TxD - RTS + RTS + CTS + CTS + RTS - CTS - RTS - CTS - SR SR Figure 0 depicts a wire cabling scheme between a port on the Xtreme/0 adapter to a port on the RS-/85 peripheral. Figure 0: RS-/85 wiring diagram ( wire) Xtreme/0 adapter RS-/85 peripheral 3 7 8 9 5 RxD + TxD + TxD + TxD - RxD + RxD - RxD - TxD - RTS + RTS + CTS + CTS + RTS - CTS - RTS - CTS - SR SR Technical Tip: The RS-/85 electrical interface consists of a differential signaling scheme. You should always connect the signals with twisted pairs Revision 0.05