FCC ID: AO9-DE210 FCC NOTICE: This device complies with Part 15 of the FCC Rules. Operation is subject to the following conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. Any changes or modifications made to this equipment may void the user 's authority to operate this equipment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: - Re-orient or relocate the receiving antenna - Increase the separation between the equipment and receiver - Connect the equipment into an outlet on a circuit different from that to which the receiver is connected - Consult the dealer or an experienced radio/TV technician for help The use of unshielded Ethernet cables on ThinWire ports with this equipment is prohibited due to non-compliance with FCC regulations for a Class B computing device pursuant to Part 15 of FCC Rules. This device complies with Part 15 of FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference. 2. This device must accept any interference received, including interference that may cause undesired operation. BENUTZERHINWEIS: Das DEC EtherWORKS MC-Modul in Verbindung mit IBM PS/2 Personalcomputersystemem entsprechen den Funkentstöranforderungen der DBP-Verfugung 523/69 und VDE0871 Grenzwertklasse B. This document was prepared using VAX DOCUMENT, Version 2.0. DEC EtherWORKS MC ------------------------------------------------------------ Owner 's Manual Order Number: EK-DE210-OM. D01 Digital Equipment Corporation maynard, massachusetts ------------------------------------------------------------ Fourth Edition, September 1992 The information in this document is subject to change without notice and should not be construed as a commitment by Digital Equipment Corporation. Digital Equipment Corporation assumes no responsibility for any errors that may appear in this document. © Digital Equipment Corporation 1990, 1991, 1992. All Rights Reserved. Printed in Taiwan The following are trademarks of Digital Equipment Corporation: DEC EtherWORKS, ThinWire, and the Digital logo. IBM and PS/2 are registered trademarks of International Business Machines, Inc. AT&T is a registered trademark of American Telephone & Telegraph Company. This document was prepared using VAX DOCUMENT, Version 2.0. ------------------------------------------------------------ Contents Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii 1 Installing and Configuring 1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.2 Preparing Your IBM PS/2 System . . . . . . . . . . 1-2 1.3 Selecting the Network Interface . . . . . . . . . . . 1-4 1.4 Installing the MC Board . . . . . . . . . . . . . . . . . 1-6 1.5 Configuring the MC Board . . . . . . . . . . . . . . . . 1-11 1.5.1 Configuring Board Settings . . . . . . . . . . . . 1-11 1.6 Connecting to a Network . . . . . . . . . . . . . . . . . 1-12 1.6.1 Connecting to ThinWire Ethernet . . . . . . . 1-12 1.6.2 Connecting to ThickWire Ethernet . . . . . . . 1-14 1.7 Installing the Software . . . . . . . . . . . . . . . . . . 1-15 2 Problem Solving 2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2.2 Fault Isolation By Symptom . . . . . . . . . . . . . . 2-2 2.3 Recovering From Self-Test Errors . . . . . . . . . . 2-5 iii A General Information A.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1 A.1.1 Physical Description . . . . . . . . . . . . . . . . . . A-2 A.1.2 Functional Components . . . . . . . . . . . . . . . A-2 A.1.3 Specifications . . . . . . . . . . . . . . . . . . . . . . . A-2 B Installing an Option ROM B.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1 B.2 ROM Installation Procedure . . . . . . . . . . . . . . B-2 C Cable Specifications C.1 Cabling Requirements . . . . . . . . . . . . . . . . . . . C-1 C.1.1 Unshielded Twisted-Pair Cable Requirements . . . . . . . . . . . . . . . . . . . . . . . C-2 C.1.2 Card Connector Pinning (RJ45) . . . . . . . . . C-2 Figures 1 Product Kit (PN DE210-AB) . . . . . . . . . . . ix 1-1 Removing the System Unit Cover . . . . . . . 1-3 1-2 Selecting the Network Interface . . . . . . . . 1-5 1-3 Removing Option Slot Cover . . . . . . . . . . . 1-7 1-4 Installing the DEC EtherWORKS MC Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8 1-5 Replacing the Screws and Cover . . . . . . . . 1-10 1-6 Connecting To a ThinWire Ethernet Network . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13 1-7 Connecting To a ThickWire Ethernet Network . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14 B-1 DEC EtherWORKS MC ROM Installation . . . . . . . . . . . . . . . . . . . . . . . . B-3 C-1 RJ45 Connector (Front View) . . . . . . . . . . . C-3 iv Tables 1-1 Decision Table for Moving the Shunt Connector . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 2-1 Fault Isolation By Symptom . . . . . . . . . . . 2-2 2-2 DEC EtherWORKS MC Self-Test Codes . . . 2-5 A-1 System Specifications . . . . . . . . . . . . . . . . A-2 v ------------------------------------------------------------ Preface The DEC EtherWORKS MC board is a communications option for IBM PS/2 personal computers that have a Micro Channel bus. This manual describes how to install and configure the MC board. The installation diskette has an automatic configuration feature to help you with the installation. Using this manual, you should be able to prepare an IBM PS/2 personal computer and an MC board for use on a Digital network. This manual describes how to change the board configuration for use with ThinWire or ThickWire Ethernet networks. To install the board, you need to understand the basic concepts and uses of Ethernet networks, and be familiar with personal computers. For more information about the IBM PS/2, see the technical reference manual or similar documentation for your system. This manual is organized as follows: · Chapter 1 explains how to install and configure the board. · Chapter 2 contains problem solving information. · Appendix A provides the hardware and software specifications. · Appendix B explains the ROM installation procedure. · Appendix C provides the cabling requirements. vii This document uses the following conventions: ------------------------------------------------------------ Convention Meaning ------------------------------------------------------------ Caution Provides information to prevent damage to equipment. Note Provides general information. PN Part number ! A number in a black circle in text refers to the corresponding number in an accompanying illustration. ------------------------------------------------------------ Before you install the board, be sure you have the following components, shown in Figure 1. · The DEC EtherWORKS MC Board ! packaged in an anti-static bag & · DEC EtherWORKS MC Owner 's Manual " · T-Connector # · Installation diskette (5¼ inch) $ · Installation micro-diskette (3½ inch) % ------------------------------------------------------------ Note ------------------------------------------------------------ If your board does not have a ROM ' in the location shown in Figure 1, refer to Appendix B. ------------------------------------------------------------ viii Figure 1 Product Kit (PN DE210-AB) ------------------------------------------------------------ Caution ------------------------------------------------------------ Static electricity can damage printed circuit boards and chips. A grounded wrist strap and grounded work-surface-to-earth ground must be used when handling these components. ------------------------------------------------------------ ix 1 ------------------------------------------------------------ Installing and Configuring 1.1 Introduction This chapter describes how to install and configure the DEC EtherWORKS MC board in your personal computer. Before you begin, you should make a copy of the diskette you need to use from the DEC EtherWORKS MC kit. Installing and Configuring 1-1 1.2 Preparing Your IBM PS/2 System Prepare your IBM PS/2 system before installing the MC board and other network integration kit components (Figure 1-1). The following illustrations show an IBM PS/2 Model 80. For other personal computers, you can use the same procedure with only minor modifications. 1. Remove any diskette(s) from the diskette drive(s). 2. Set all power switches to 0 (off). 3. Unplug the power cord from the wall socket, then disconnect all cables from the rear of the system unit. 4. If the cover is locked, use the key ! to unlock it. 5. Loosen the two large screws " from the side of the system unit. 6. Pull the cover away from the system unit and lift it out of the grooves on the pedestal. 1-2 Installing and Configuring Figure 1-1 Removing the System Unit Cover Installing and Configuring 1-3 1.3 Selecting the Network Interface The MC board has a shunt connector ! (Figure 1-2) that lets you determine how the IBM PS/2 computer interfaces with the network-- either a ThinWire or ThickWire network. The connector should be preselected for ThinWire Ethernet networks. You may need to change the setting before you install it in an IBM PS/2 computer. The shunt connector, J3, has a 3-pin jumper arrangement. Table 1-1 summarizes the settings and Figure 1-2 shows the settings. Table 1-1 Decision Table for Moving the Shunt Connector ------------------------------------------------------------ IF You Want To... Then... ------------------------------------------------------------ Connect to a ThinWire Ethernet network " Move the shunt connector away from the mounting bracket, thus connecting pin columns 2 and 3 (default setting). Connect to a ThickWire Ethernet network # Move the shunt connector towards the mounting bracket to connect pin columns 1 and 2. ------------------------------------------------------------ ------------------------------------------------------------ Caution ------------------------------------------------------------ Static electricity can damage printed circuit boards and chips. A grounded wrist strap and grounded work-surface-to-earth ground should be used when handling these components. ------------------------------------------------------------ 1-4 Installing and Configuring Figure 1-2 Selecting the Network Interface Installing and Configuring 1-5 1.4 Installing the MC Board Use this next procedure to install the board. 1. Prepare your IBM PS/2 as described in Section 1.2 2. Remove only the option slot cover from the slot you plan to use. Loosen the thumbscrew from the option slot (Figure 1-3) and then remove the slot cover. 3. Place the board in the option slot (Figure 1-4). Tip the board inward toward the rear of the system unit to allow the BNC connector on the mounting bracket to clear the opening in the rear of the system unit. 1-6 Installing and Configuring Figure 1-3 Removing Option Slot Cover Installing and Configuring 1-7 4. Firmly press the board into place until the tabs ! (Figure 1-4) align behind the thumbscrew. 5. Tighten the thumbscrew " (Figure 1-4) while holding the option slot in place. ------------------------------------------------------------ Caution ------------------------------------------------------------ For safe system operation, be sure there are no open slots remaining when you complete the installation. ------------------------------------------------------------ Figure 1-4 Installing the DEC EtherWORKS MC Board 1-8 Installing and Configuring 6. Replace the system unit cover. Align the tabs at the bottom of the cover with the slots in the pedestal ! (Figure 1-5). Push the cover into place and tighten the two screws. 7. Reconnect all cables and connectors. a. Plug the keyboard connector into the rear of the system unit. b. Connect the keyboard and monitor cables, and any option cables. c. Connect the power cable to the rear of the system unit then plug the other end into the wall outlet. 8. Turn on the power to the monitor and the system. If the startup test runs successfully, then the board has already been configured and the computer continues the normal startup process. If the board has not been configured, the system displays the size of memory in kilobytes and the number 165 in the upper-left corner of the screen: xxxx KB 165 If your system displays this information, continue with Section 1.5 to configure the IBM PS/2 for the board. If this does not display, go to Section 1.6. Installing and Configuring 1-9 Figure 1-5 Replacing the Screws and Cover 1-10 Installing and Configuring 1.5 Configuring the MC Board Before using the board, you must configure it for use with the IBM PS/2 computer. This is done using the adapter description file (ADF). The ADF provides default settings for the following five board features. These features can be modified, the first three of which are set by the automatic configuration software. Interrupt Line Memory Address I/O Address Remote Boot Enable Remote Boot Timeout Count 1.5.1 Configuring Board Settings After you install the board, configure it using the following procedure: 1. Insert the backup version of the System Reference diskette into drive A. 2. Turn power to the system on. In the upper-right corner of the screen different memory amounts flash in sequence. 3. At the prompt to run automatic configuration, enter no. 4. Select the following choices from the menu: a. Copy Diskette b. Set Configuration c. Run Automatic Configuration If the automatic configuration detects a conflict with another board in your computer, select Change Configuration, then perform a manual configuration. 5. Restart the system by simultaneously pressing ------------------------------------------------------------ ------------------------------------------------------------ Ctrl ------------------------------------------------------------ ------------------------------------------------------------ ------------------------------------------------------------ ------------------------------------------------------------ Alt ------------------------------------------------------------ ------------------------------------------------------------ ------------------------------------------------------------ ------------------------------------------------------------ Del ------------------------------------------------------------ ------------------------------------------------------------ . Installing and Configuring 1-11 ------------------------------------------------------------ Note ------------------------------------------------------------ If an error code, such as DE210 89, appears on the screen during the restart process, a self-test error has occurred. Refer to Section 2.2. ------------------------------------------------------------ 1.6 Connecting to a Network Depending on how you configured the board in Section 1.3, use one of the following procedures to connect your system to the network. 1.6.1 Connecting to ThinWire Ethernet To connect your system to ThinWire Ethernet, push the T-Connector onto the ThinWire Ethernet connector. Push the connector nut of the T-Connector ! (Figure 1-6) onto the BNC connector on the mounting bracket, then turn the connector nut clockwise until it locks into place. See your system administrator for more information if needed. 1-12 Installing and Configuring Figure 1-6 Connecting To a ThinWire Ethernet Network Installing and Configuring 1-13 1.6.2 Connecting to ThickWire Ethernet To connect your system to ThickWire Ethernet, connect the transceiver cable ! (Figure 1-7) to the ThickWire Ethernet connector. Figure 1-7 Connecting To a ThickWire Ethernet Network 1-14 Installing and Configuring 1.7 Installing the Software Read the files named "README.TXT" and "RELEASE.NOT" on the installation diskette. These files contain the instructions for loading the MC software drivers onto your system. Installing and Configuring 1-15 2 ------------------------------------------------------------ Problem Solving 2.1 Introduction This chapter describes possible problems you may encounter with the MC board and suggests possible causes and solutions. Problem Solving 2-1 2.2 Fault Isolation By Symptom Table 2-1 describes how to isolate faults by the symptoms that are occurring. Table 2-1 Fault Isolation By Symptom ------------------------------------------------------------ Symptom Possible Cause Recommended Action ------------------------------------------------------------ The system is on, but there is no display. The monitor is not on or is not connected to the video board. Ensure that the monitor cable is firmly connected to the video board. Set the monitor power switch to on. The board is not seated firmly. Remove and reinsert the board firmly in the computer. (Section 1.4.) The board is preventing the computer from operating correctly. Disconnect the transceiver cable or the ThinWire T- connector from the BNC connector. Turn the computer off then on again. If the problem persists, contact your system administrator or authorized service representative. ------------------------------------------------------------ The system does not boot from the diskette. The system diskette may be corrupted. See your system administrator for a bootable system diskette. ------------------------------------------------------------ (continued on next page) 2-2 Problem Solving Table 2-1 (Cont.) Fault Isolation By Symptom ------------------------------------------------------------ Symptom Possible Cause Recommended Action ------------------------------------------------------------ The system does not remote boot. Remote Boot Disable is set. Set Remote Boot Enable using the System Configuration Utility. If the problem persists, contact your system administrator. ------------------------------------------------------------ The system is on, but the network does not start. The network interface or remote boot is set incorrectly. Check the shunt connector setting. The network cables are loose. Check and secure all cables. A conflict exists with another option in the system. Run the System Configuration Utility to check for any conflict. See your system administrator for more information if needed. ------------------------------------------------------------ The system is on and the screen displays a self-test code during system startup. A possible problem exists with the DEC EtherWORKS MC board. See the codes in Table 2-2. ------------------------------------------------------------ (continued on next page) Problem Solving 2-3 Table 2-1 (Cont.) Fault Isolation By Symptom ------------------------------------------------------------ Symptom Possible Cause Recommended Action ------------------------------------------------------------ The system cannot return to network operation after leaving an application program. You may be using a program written or compiled in Version 1.0 BASIC (IBM BASIC Version 1.0, Interpreter or Compiler, GW-BASIC Version 1.0). Do not use these versions of the program. Recompile the program using Version 2.0 or later of BASIC, or contact your software vendor for an updated version of the program. ------------------------------------------------------------ 2-4 Problem Solving 2.3 Recovering From Self-Test Errors Self-test errors can occur at system startup. Table 2-2 lists the MC board self-test codes, their description, and recommended action. If a problem persists, call your Digital authorized service representative. ------------------------------------------------------------ Note ------------------------------------------------------------ Although the board detects an error and is not operating, you can still use your personal computer. ------------------------------------------------------------ Table 2-2 DEC EtherWORKS MC Self-Test Codes ------------------------------------------------------------ Code Description Recommended Action ------------------------------------------------------------ 80 Memory access conflict Run the System Configuration utility to check for any memory address conflicts. 81 Data path error Run the System Configuration utility to check for any memory address conflicts. 82 Address test conflict Run the System Configuration utility to check for any memory address conflicts. 83 RAM tests conflict Run the System Configuration utility to check for any memory address conflicts. 84 Ethernet ROM CRC error Run the System Configuration utility to check for any I/O address conflicts. 85 NI_CSR Error Call your Digital authorized service representative. 86 LANCE I/O address conflict Run the System Configuration utility to check for any conflicts. (continued on next page) Problem Solving 2-5 Table 2-2 (Cont.) DEC EtherWORKS MC Self-Test Codes ------------------------------------------------------------ Code Description Recommended Action ------------------------------------------------------------ 87 LANCE Initialization error Call your Digital authorized service representative. 88 LANCE Interrupt request (IRQ) conflict Run the System Configuration utility to check for any interrupt conflicts. 89 NI_CSR Mask test error Call your Digital authorized service representative. 90 POS Register verification Replace the board. 8A LANCE Internal loopback error Call your Digital authorized service representative. 8B LANCE Collision error Call your Digital authorized service representative. 8C LANCE CRC Error Call your Digital authorized service representative. 8D Swap RAM error Call your Digital authorized service representative. 8E Shadow RAM enable error Call your Digital authorized service representative. 8F Configuration error Run the System Configuration utility to check for any conflicts. Also, check parameter settings for your network to make sure that they match the configuration on the board. ------------------------------------------------------------ 2-6 Problem Solving A ------------------------------------------------------------ General Information A.1 Introduction The MC board lets you integrate IBM PS/2 computers that have a Micro Channel bus architecture into a network. When you have installed the board, you can use network software products to integrate the computer into a network. You can connect the board to either a ThinWire Ethernet network or a ThickWire Ethernet network. You cannot, however, connect the board to both kinds of networks at the same time. General Information A-1 A.1.1 Physical Description The board is a three-quarter length, IBM PS/2 form factor printed circuit board that uses a 16-bit bus connector. A.1.2 Functional Components The major functional blocks on the board are as follows: · Ethernet network protocol controller (LANCE) · ThinWire (BNC connector) network interface · Ethernet (DB-15S connector) network interface · Network buffer RAM - 64 KB · Diagnostics and remote-boot ROM - 16 KB · Ethernet hardware address ROM · Programmable option select circuitry A.1.3 Specifications Table A-1 lists the board's hardware specifications. Table A-1 System Specifications ------------------------------------------------------------ Interrupt Vector Assignments Available Selections ------------------------------------------------------------ Network interface controller IRQ5, IRQ9, IRQ10, IRQ11 ------------------------------------------------------------ I/O Address Assignments Available Selections ------------------------------------------------------------ 2C00--2C0F 2C10--2C1F 2C20--2C2F 2C30--2C3F (continued on next page) A-2 General Information Table A-1 (Cont.) System Specifications ------------------------------------------------------------ Memory Address Assignments Available Selections ------------------------------------------------------------ 64 KB C0000--CFFFF D0000--DFFFF E0000--EFFFF 1 32 KB C8000--CFFFF D8000--DFFFF E8000--EFFFF 1 16 KB C0000 -- C3FFF C1000 -- C4FFF C2000 -- C5FFF C3000 -- C6FFF C4000 -- C7FFF C5000 -- C8FFF C6000 -- C9FFF C7000 -- CAFFF C8000 -- CBFFF C9000 -- CCFFF CA000 -- CDFFF CB000 -- CEFFF CC000 -- CFFFF D0000 -- D3FFF D1000 -- D4FFF D2000 -- D5FFF D3000 -- D6FFF ------------------------------------------------------------ 1 E0000 range is not available on IBM PS/2 systems. (continued on next page) General Information A-3 Table A-1 (Cont.) System Specifications ------------------------------------------------------------ Memory Address Assignments Available Selections ------------------------------------------------------------ D4000 -- D7FFF D5000 -- D8FFF D6000 -- D9FFF D7000 -- DAFFF D8000 -- DBFFF D9000 -- DCFFF DA000 -- DDFFF DB000 -- DEFFF DC000 -- DFFFF E0000 -- E3FFF E1000 -- E4FFF E2000 -- E5FFF E3000 -- E6FFF E4000 -- E7FFF E5000 -- E8FFF E6000 -- E9FFF E7000 -- EAFFF E8000 -- EBFFF E9000 -- ECFFF EA000 -- EDFFF EB000 -- EEFFF EC000 -- EFFFF (continued on next page) A-4 General Information Table A-1 (Cont.) System Specifications ------------------------------------------------------------ ------------------------------------------------------------ Power Requirements Wattage ------------------------------------------------------------ ThickWire: DC Amps @ +5V: 1.5 A (max.) 13.5 (max) ThinWire: DC Amps @ +12V: 0.34 A (max.) 11.5 watts (max.) 0.5 A (max.) to power external transceiver, DEC AUI (H4000). ------------------------------------------------------------ Operating Environment ------------------------------------------------------------ Temperature (at sea level) 15° - 32° C (59° - 90° F) Relative humidity 8% to 80% (non-condensing) Radiated emissions FCC Class B VDE Class B ------------------------------------------------------------ General Information A-5 B ------------------------------------------------------------ Installing an Option ROM B.1 Introduction The ROM chip is optional on the MC board and is not required for correct operation. If you purchased the board from Digital (PN DE210-AB), then the board already has the option ROM installed. ------------------------------------------------------------ Caution ------------------------------------------------------------ Static electricity can damage printed circuit boards and chips. A grounded wrist strap and grounded work-surface-to-earth ground must be used when handling these components. ------------------------------------------------------------ If your configuration requires that the ROM chip be installed, use the following procedure to install it. Installing an Option ROM B-1 B.2 ROM Installation Procedure Refer to Figure B-1 when installing the ROM chip. ------------------------------------------------------------ Caution ------------------------------------------------------------ Improper insertion of the ROM chip can damage the board. ------------------------------------------------------------ 1. Note the location of the notch ! on the silk screen surrounding the ROM socket. 2. Be sure that the notch on the ROM " aligns with the notch on the silk screen and the socket. 3. Align the pins on the chip and press from side to side until the chip is fully seated. B-2 Installing an Option ROM Figure B-1 DEC EtherWORKS MC ROM Installation Installing an Option ROM B-3 C ------------------------------------------------------------ Cable Specifications C.1 Cabling Requirements Make sure you have a cable to connect the MC board as planned. You need to consider the following types of cable connections: · Twisted-Pair cable--such as PN BN24F, BN25G, or BN26K. ------------------------------------------------------------ BN24F - Unshielded Twisted-Pair office cable with crossover (4-conductor, 2-twisted pair) to connect a DE210 to another DE210, or a DE210 to an office plate from a DECrepeater 350. ------------------------------------------------------------ BN25G or BN26K - Point-to-point unshielded Twisted-Pair patch cable to connect a DE210 to an office plate from a DECrepeater 90T. · ThinWire cable--such as PN BNE4G-02, and a ThinWire T- Connector such as H8223-00/CDA, and a ThinWire terminator such as H8225-00/CDA, to connect the DE210 to the office wall plate or to DECrepeater 90C. For configuration planning, refer to the DECconnect System Planning and Configuration Guide (PN EK-DECSY-CG). Cable Specifications C-1 C.1.1 Unshielded Twisted-Pair Cable Requirements ------------------------------------------------------------ Requirement Description ------------------------------------------------------------ Wire specification 22-24 gauge wire, solid copper Cable supported DECconnect Twisted-Pair data cable, AT&T Type C or D, IBM Type 3, or Northern Telecom 4-pair unshielded Twisted-Pair cable Cable length 90 m (296 ft) typical maximum from wiring closet or Satellite Equipment Room to office. DC Resistance per conductor, maximum .094 /m (28.6 /1000 ft) Impedance at 5 MHz 100 ------------------------------------------------------------ C.1.2 Card Connector Pinning (RJ45) If you are using an EISA board to connect 10BaseT Twisted- Pair networks, the connector has the following pin signals. (See Figure C-1). ------------------------------------------------------------ Pin Number Signal Name ------------------------------------------------------------ 1 Transmit + 2 Transmit - 3 Receive + 4 NC (no connection) 5 NC (no connection) 6 Receive - 7 NC (no connection) 8 NC (no connection) ------------------------------------------------------------ C-2 Cable Specifications Figure C-1 RJ45 Connector (Front View) Cable Specifications C-3