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IBM 5500 Operational, Installation, And Maintenance Manual

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5500 Express IP Control Unit
Planning, Installation, and
Maintenance Guide
S05J-4934-00

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  • Page 1 5500 Express IP Control Unit Planning, Installation, and Maintenance Guide S05J-4934-00...
  • Page 3 5500 Express IP Control Unit Planning, Installation, and Maintenance Guide S05J-4934-00...
  • Page 4 “Notices” on page vii. First Edition (February 1999) This edition applies to the IBM 5500 Express IP Control Unit and to all subsequent releases and modifications until otherwise indicated in new editions. The following paragraph does not apply to the United Kingdom or any country where such provisions are inconsistent with local law: INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION “AS IS”...
  • Page 5 The replace- ment may not be new, but will be in good working order. If IBM or your reseller is unable to repair or replace the Machine, you may return it to your place of purchase and your money will be refunded.
  • Page 6 Secure all programs, data, and funds contained in a Machine, and inform IBM or your reseller of changes in a Machine’s location. IBM is responsible for loss of, or damage to, your Machine while it is 1) in IBM’s possession or 2) in transit in those cases where IBM is responsible for the transportation charges.

  • Page 7: Important Safety Information

    Read the Safety Information book (SD21-0030) first, noting that the IBM 5500 Express IP Control Unit does not have a power switch. To power on the unit, connect the power cord to an electrical outlet of the correct voltage while still following the sequences and safety procedures in the Safety Information book.
  • Page 8 • Do not use or store the 5500 Control Unit in an area where it can become wet. • Personal injury or electrical shock may result if you undertake actions other than those specifically described in this book.
  • Page 9 The following FCC statement applies to for the IBM 5500 Express IP Control Unit: Federal Communications Commission (FCC) Statement Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
  • Page 10 Germany Dieses Gerät ist berechtigt in Übereinstimmung mit dem deutschen EMVG vom 9.Nov.92 das EG0Konformitatszeichen zu führen. Der Außteller der Konformitätserklärung ist die. IBM Deutschland Informationssy steme Gmbh Pascalstrasse 100 70548 Stuttgart Dieses Gerät erfült die Bedingungen der EN 55022 Klasse A. Für diese Klasse von Geräten gilt folgende Bestimmung nach dem EMVG: Gerate dürfen an Orten, für die...
  • Page 11 IBM 5250 Emulation Support Center in Charlotte, North Carolina. This support is accessed in call-back mode through the IBM Support Center. In the United States, you may call the IBM Support Center at 1-800-237-5511 anytime; ask that your call be routed to the 36WSEM, location 153 area of RETAIN.

  • Page 12: About This Book

    This book describes the planning, installation and maintenance procedures for the IBM 5500 Express IP Control Unit. Throughout this book, the IBM 5500 Express IP Control Unit is referred to as the 5500 Control Unit. The term, client workstation, refers to the twinax IBM Network Station or a PC with IBM 5250 Express Adapter.

  • Page 13: How This Book Is Organized

    31, and Appendix C: “Required Configuration and Worksheet” on page 165. Information system specialists, system administrators, and other personnel required to install the 5500 Control Unit should read Chapter 3: “Installing the 5500 Express IP Control Unit” on page 49, Chapter 4: “Configuring the 5500 Express IP Control Unit”...

  • Page 14: Document Conventions

    5500 control unit’s information. • Appendix D: “Using the IBM 5250 Express TCP/IP Driver” on page 173 provides instructions on using your complimentary IBM 5250 TCP/IP transport driver.
  • Page 15 Planning, Installation, and Maintenance Guide • Using the 5250 TCP/IP over twinax driver (complimentary from IBM) Also, you can access online help from the 5500 unit’s configuration program. © Copyright IBM Corporation, 1998...
  • Page 16 Planning, Installation, and Maintenance Guide...

  • Page 17: Table Of Contents

    Security, Auditability and Control ....... . .34 Connection Configurations for the 5500 Control Unit ....34 WAN Configuration Data .
  • Page 18 Tools............49 Rear View of 5500 Control Unit ....... .50 Chapter 4: Configuring the 5500 Express IP Control Unit Twinax Connected PC Workstation.
  • Page 19 IBM Cabling System Tests ........124...
  • Page 20 Appendix C: Required Configuration and Worksheet 5500 Control Unit Configuration Data ......165 Configuration Data Worksheet ........168 Appendix D: Using the IBM 5250 Express TCP/IP Driver Workstation Prerequisites .
  • Page 21 Figure 20: Attaching the AC Power Cord - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 52 Figure 21: Example of the IBM 5500 Front Panel - - - - - - - - - - - - - - - - - - - - - - - 53...
  • Page 22 Figure 84: Card Socket - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 163 Figure 85: 5500 Control Unit Configuration Data - - - - - - - - - - - - - - - - - - - - - - 165...

  • Page 23: Chapter 1: Introducing The Ibm 5500 Express Ip Control Unit

    Chapter 1: Introducing the IBM 5500 Express IP Control Unit The 5500 Express IP Control Unit allows you to connect network stations or personal computers equipped with an IBM Express Twinax adapter to a remote AS/400 system. The unit establishes these connections using Transmission Control Protocol/Internet Protocol (TCP/IP) available in Windows 95, 98 and NT workstations and servers.

  • Page 24: Product Advantages

    The following section describes the AS/400 and the twinax client connections. Remote AS/400 Connection Requirements All communication through the 5500 Control Unit to the remote AS/400 is based upon internet protocol (IP). Two RS232 ports connecting through ISDN (integrated services digital network) or asynchronous modems allow remote connections to an AS/400 host.
  • Page 25 - 24 megabytes RAM minimum memory - Network Station Manager host server version 3.0 or higher Note: The 5500 Control Unit is not a Router or a DHCP Relay Agent. Thus 5500 twinax clients cannot make DHCP requests unless there is a DHCP Server on the twinax segment, or a DHCP Server on a 5500 LAN segment and the twinax subnet is configured to be part of that LAN.

  • Page 26: Twinax Cabling Requirements

    55E1I046 Figure 3: Twinax Cable Token Ring Cabling Requirements Figure 4 shows examples of token ring cables that can be used with your IBM 5500 Control Unit. Note: Cables are not supplied with the 5500 Control Unit. Figure 4: Token Ring Cables...

  • Page 27: Ethernet Cabling Requirements

    Use EIA standard RS-232 cables to attach your modem to the 5500 Control Unit. Use a standard DTE (not “null modem”) cable. Notes: 1. The 5500 Control Unit only dials out and cannot be dialed into by other devices. 2. Cables are not supplied with the 5500 Control Unit.

  • Page 28: Hardware List

    AC power connector (110 & 220 switchable) a. ISDN/asynchronous modems Hardware List The following is a list of the hardware shipped with the 5500 Control Unit: • IBM 5500 Express IP Control Unit • Power cord • Twinax breakout box •...

  • Page 29: Electrical

    .7mA / 40 A current Electrical The 5500 Express IP Control Unit contains a 200W power supply with switch settings from 90 to 132 VRMS and 180 to 264 VRMS. The power supply operates from 48 through 63 Hertz. Powering On To prevent an unnecessary power loss, the 5500 Express IP Control Unit does not provide a power switch.
  • Page 30 Chapter 1: Introducing the IBM 5500 Express IP Control Unit Planning, Installation, and Maintenance Guide...

  • Page 31: Chapter 2: Planning Your Installation

    On the floor plan, mark the location of the AS/400, the 5500 Control Unit and the workstations. If your installation includes more than one site, mark up the floor plans for each site.
  • Page 32 Chapter 2: Planning Your Installation • The distance from the 5500 Control Unit to the floor • If you have a raised floor, the length from the raised floor to the subfloor underneath • The distance across the floor to the device •...
  • Page 33 Category 3 Category 5 Category 5 1PA & 2PA 5500 to 100 m 100 m Device Total (326 ft.) (326 ft.) 5500 to Hub 610 m 610 m (2000 ft.) (2000 ft.) Hub to 548 m 671 m Device (1800 ft.) (2200 ft.)

  • Page 34: Maximum Cable Lengths For Twinax And Ics

    5500 Control Unit. Connection Configurations for the 5500 Control Unit The IBM 5500 Express IP Controller can be part of your network in a number of different configurations. Six typical network layouts are shown below.
  • Page 35 Express devices on a different port than your legacy devices. Also, ensure that you have Express-enabled Hubs and Multiplexers (IBM 7299). Figure 8 is an example of an IBM 5500 remotely connected to an AS/400 through asynchronous or ISDN modem.
  • Page 36 Chapter 2: Planning Your Installation Figure 9 is an example of an IBM 5500 remotely connected to an AS/400 and the Internet using an Internet Service Provider (ISP). The 5250 Express Client connects to the IBM 5500 using an IBM 7299 Express Hub.
  • Page 37 Figure 10 is an example of 5250 Express Clients communicating with an AS/ 400 using the IBM 5500 and IBM 7299 Express Hubs and Multiplexers. This particular scenario is also an example of how the IBM 5500 allows Express- enabled TCP/IP clients to communicate with a CISC (White Box) AS/400.
  • Page 38 Chapter 2: Planning Your Installation Figure 11 is an example of the IBM 5500 remotely connected to an AS/400 using a Frame Relay and 2210 Routers. An IBM 5494 may also be connected for legacy twinax support. 2210 Router 2210 Router...
  • Page 39 Figure 12 is an example of the IBM 5500 remotely connected to an AS/400 using an IBM 5494 equipped with token ring to Frame Relay bridge support. CSU/DSU Frame Relay AS/400 CSU/DSU 5494 5500 Express IP with TR-FR Control Unit...

  • Page 40: Wan Configuration Data

    Chapter 2: Planning Your Installation Figure 13 is an example of the 5500 remotely connected to an AS/400 using a Leased Line and 2210 Routers. An IBM 5494 may also be connected for legacy twinax support. LAN (Token-Ring Synchronous or Ethernet)

  • Page 41: Understanding Tcp/Ip Concepts

    Understanding TCP/IP Concepts There are many ways that you can use the IBM 5500 Control Unit in your network environment. A good general understanding of TCP/IP as well as network concepts, is necessary to get the most from your 5500 Control Unit.

  • Page 42: Subnetting

    As part of planning the installation of your 5500 Control Unit, determine the range of addresses to be used by each network port of the 5500 Control Unit. The twinax port allows up to 56 twinax-attached workstations to exploit the TCP/IP protocol for access to network resources.

  • Page 43: Subnetting Example-Transparent Subnetting

    Partitioning can be accomplished by using a subnet mask that is more restrictive for the twinax workstations attached to the 5500 Control Unit than for the LAN to which the 5500 Control Unit is also attached. A simple example follows: •...
  • Page 44 Chapter 2: Planning Your Installation AS/400 Original Network 5494 Token-Ring LAN Subnet mask: 255.255.255.0 Address range: 100.100.100.0 through 100.100.100.255 Token-Ring Clients Twinax SNA Clients 55E1I008 Figure 14: Example of Network before Installing the IBM 5500 Planning, Installation, and Maintenance Guide...

  • Page 45: Optimizing Twinax Performance For The Client Workstation

    Network Neighborhood, and the twinax devices subnet to include the non- twinax subnet in the Network Neighborhood. However, this function can degrade twinax performance if the 5500 Control Unit is attached to a large network.

  • Page 46: Dual Mode Setting

    Every Twinax Workstation Controller (WSC) handles ports one at a time. Every device must wait until the WSC can handle its port. An older WSC has 8 ports to timeslice. However, the 5500 control unit’s WSC is actually two mini controllers, each responsible for servicing 4 ports.

  • Page 47: Using The 5500 Control Unit As A Network Station Boot Server

    Using the 5500 Control Unit as a Network Station Boot Server When using the IBM 5500 Control Unit as a Boot Server for the IBM Network Stations, the NSM (Network Station Manager) Host Configuration Server should be configured to optimize the login process of the NS Client.
  • Page 48 Chapter 2: Planning Your Installation Planning, Installation, and Maintenance Guide...

  • Page 49: Chapter 3: Installing The 5500 Express Ip Control Unit

    • Also, complete the configuration worksheet located in “Configuration Data Worksheet” on page 168. Note: Do not use the Utility diskette during installation. For information on the Utility diskette, refer to “Using the IBM 5500 Utility Diskette” on page 179. Installation Process Although each installation can vary, the following processes are similar: •...

  • Page 50: Rear View Of 5500 Control Unit

    - Windows NT/95 or 98 workstation with IBM 5250 Adapter and IBM 5250 Express TCP/IP software with Netscape Navigator 3.0 or Microsoft Internet Explorer 4.0 Rear View of 5500 Control Unit Figure 16 is a view of the rear connections of the 5500 Control Unit: Voltage Twinax LAN 0 LAN 1...
  • Page 51 Figure 17: Connecting the Twinax Breakout Box to the 5500 Control Unit Step 3: Attaching a Twinax Workstation Refer to Figure 18 and attach the PC to the breakout box. Figure 18: Attaching the PC to the Twinax Breakout Box Refer to Figure 19 and attach the twinax workstation to the twinax breakout box, port 0.
  • Page 52 Chapter 3: Installing the 5500 Express IP Control Unit Step 4: Reviewing Connections Ensure all connections to the unit are complete, including the attachment of the modem to the RS-232 ports and LAN connectors. Step 5: Attaching the Power Cord ATTENTION: Read the number on the voltage switch.
  • Page 53 3. After approximately 5 seconds, the diskette light goes off, and the Test LED comes on. Diagnostics and startup can take 3 to 7 minutes depending upon the model of your 5500 control unit, its configuration and its state. Normally, the power LED appears green and the test LED appears yellow for approximately 3 to 7 minutes.
  • Page 54 Chapter 3: Installing the 5500 Express IP Control Unit Planning, Installation, and Maintenance Guide...

  • Page 55: Chapter 4: Configuring The 5500 Express Ip Control Unit

    Before you begin, complete the worksheet available in “Configuration Data Worksheet” on page 168. To communicate with the 5500 Control Unit for the first time, you must first either configure a Twinax PC Client or a Twinax Network Station client.
  • Page 56 2. Select the Advanced Tab, (see Figure 23 on page 57). Note: If you do not see the IBM 5250 PCI Express Adapter in the list, you will need to install the driver. The latest versions are available from the following site: http://www.networking.ibm.com/525tcpip/tcpdnld.html...
  • Page 57 Figure 23: Example of IBM5250 PCI Express Adapter Properties 3. From the Advanced page, select Station Address, and enter the Value 0 and click the OK button 4. From the Network window, select TCP/IP for the 5250 Adapter and click the Properties button.

  • Page 58: Configuring The Twinax Network Station

    RFS/400 4.The TCP/IP address changes after a configuration cycle occurs on the IBM 5500 Control Unit. You will need to change the NS setup to reflect any IP address changes. To access the Network Station, your workstation address must be as follows: •...

  • Page 59: Using The Configurationplus Program

    Worksheet” on page 165. ConfigurationPlus is a software program resident on your 5500 Express IP Control unit. This program allows you to configure your 5500 control unit and to perform other administrative tasks. When using the program, assistance is available by selecting the help button from the Main Menu.

  • Page 60: Accessing The 5500 Control Unit

    5500 control unit’s IP addresses in the Location box. For initial configurations, this IP address is 10.1.1.1. Note: 10.1.1.1 is the factory default IP Address for the 5500 Control Unit. Step 2: The ConfigurationPlus welcome screen appears (D00). To proceed, click the Enter button.

  • Page 61: Configuring The Ibm 5500 Controller Id

    Step 1: Select IBM 5500 Controller ID to open the IBM 5500 Controller Identification window (H10): Note: If you will have more than one 5500 Control Unit connected to the same network, you will need to have a unique Controller Name for each one.

  • Page 62: Configuring The Lan

    OK on the screen with the eight Ports. You will return to the Configuration Hardware Editor window (H00). Configuring the LAN Step 1: Select the LAN configuration to connect the 5500 Control Unit to a Token Ring or Ethernet LAN. Note: The number of LAN interfaces available for configuration depends upon the model of your 5500 Control Unit.

  • Page 63: Configuring Socks Host For Network Station

    Step 1: Complete your configuration by reconfiguring your twinax client and changing your browser to the new IP address for the 5500 control unit. Step 2: Open a browser (Netscape or Internet Explorer) and enter the 5500 control unit’s IP addresses in the Location box.

  • Page 64: Creating A Recovery File

    Step 5: Select Configuration Menu (C11), Backup Hardware Configuration (C30) and preserve your configuration. Creating A Recovery File Note: If you need to replace a defective 5500 Control Unit, you must retain a current copy of the configuration on the 5500 Utility Diskette using these steps.

  • Page 65: Utilities

    Show Internal IP (Internet protocol) Configuration Displays your current internet protocol configuration settings. Reboot IBM 5500 Allows you to shutdown and restart the 5500. This selection does NOT reconfigure your system. Firmware Level Displays the current level of firmware in your 5500 Control Unit.
  • Page 66 Chapter 4: Configuring the 5500 Express IP Control Unit Attention: Only under extreme circumstances should you remove power from the system without going through the normal shutdown process. Planning, Installation, and Maintenance Guide...
  • Page 67 (WAN 1) Comm Line 1 Admin. ID Current Date Advanced and Time Configuration Change Date and Set Date and Time Time on IBM 5500 Create Recovery Utilities Options Information File Create Recovery Recovery.Exe File Ping Clients Show Internal IP Ping Client...
  • Page 68 Chapter 4: Configuring the 5500 Express IP Control Unit Planning, Installation, and Maintenance Guide...

  • Page 69: Chapter 5: Troubleshooting

    3. Check that the voltage selector switch is set to the correct voltage for the alternating current (AC) wall outlet. 4. Check that the power cord is connected to the back of the 5500 and reconnect to the AC wall outlet.
  • Page 70 The system is ready when the Ready LED is yellow and the Test LED is off (not lighted). The unit is now operational and ready for initial configuration as described in “Configuring the 5500 Express IP Control Unit” on page 55.

  • Page 71: Resolving Boot Sequence Problems

    Resolving Boot Sequence Problems The following scenarios can help you resolve some common boot sequence problems: Figure 26: Boot Sequence Scenario Scenario Question Response Power LED Is unit plugged • Make sure power cord is plugged remains off into socket? into the unit and into a working AC wall outlet.
  • Page 72 Perform another Retrieve, or build Recovery file again. - Configuration data on diskette was for a model 5500 that is different than current 5500 control unit. Configuration data should not be shared between units. - The configuration data on the diskette is at a higher firmware level than your current 5500 Control Unit.

  • Page 73: Lan Troubleshooting

    5500 Control Unit’s Token Ring and Ethernet Adapters. Solving a Communication Problem with the Token Ring Adapter Occasionally, the 5500 Control Unit is unable to communicate on the network while other stations on the network can communicate. Follow these steps: 1.
  • Page 74 Chapter 5: Troubleshooting Understanding the Adapter LEDs and Labels The adapter LEDs and address labels provide information useful for monitoring the status of the adapter and for solving problems. Universally Administrated Address Label Green LED Amber LED 55E1I043 Figure 28: Rear view of Token Ring Adapter If the green LED is on and the amber LED is off, the adapter is operating correctly.
  • Page 75 Perform the procedure “Shutting Down” on page 65 and power up your 5500 Control Unit. If the problem persists, call service. The adapter is open and operating correctly Check your TCP/IP configuration.
  • Page 76 Chapter 5: Troubleshooting Figure 30: Token Ring Adapter LED Status Errors Amber Green Explanation and Action The adapter self-diagnostic tests failed or there is a problem with the adapter. Call your service representative. Blinking This adapter is closed due to an undetected error.

  • Page 77: Solving A Communication Problem With The Ethernet Adapter

    Solving a Communication Problem with the Ethernet Adapter Occasionally, the 5500 Control Unit fails to communicate with workstations on the Ethernet LAN (even though the workstations operate correctly). Figure 31 lists some common problems and suggested actions. See Figure 32 on page 78 to help you locate components on the Ethernet Adapter.

  • Page 78: Wan Troubleshooting

    Figure 32: Rear View of Ethernet Adapter WAN Troubleshooting This section discusses problems with connections to a host over the 5500 Control Unit’s WAN ports. The following is a list of symptoms and definitions to assist you with problem determination: A connection with the host cannot be established.

  • Page 79: No Connection

    • Is the cable connected to the modem properly? • Is the cable connected to the correct port on the 5500 Control Unit? The connector labeled “Communication Line 0” corresponds to WAN 0, and “Communication Line 1” corresponds to WAN 1.
  • Page 80 • The host modem answers the phone - Leased Lines At this time, leased lines cannot be directly connected to the 5500 Control Unit. Until this support is available, you can place a router between the leased line and the 5500 Control Unit.
  • Page 81 5500 Control Unit. • Is the Authentication setting (Encrypted verses Any) what the host is expecting? • A 5500 IP address is required for SLIP (and is optional for PPP). Is the value specified correct?

  • Page 82: Intermittent Or Dropped Connection

    • Is the modem set up for Point-to-Point Communications? The 5500 Control Unit does not support Multi-Point Communications. • Is the modem set up to originate? The 5500 Control Unit is set up to originate calls, and the host should be set up to answer.

  • Page 83: Slow Connection

    The following factors could cause seemingly slow transfers with the host. Check the following items: • Baud rate settings at both the 5500 Control Unit and the host. The modems may not indicate their connection speed • Incorrect modem initialization strings •...
  • Page 84 Chapter 5: Troubleshooting This section describes how to resolve problems with the Network Station when connected to the 5500 Control Unit. For detailed information, refer to your Network Station user’s guide. Figure 33: Network Station Troubleshooting Symptom What To Do NS (Network Station) will not 1.

  • Page 85: Field Code Updates

    Field Code Updates Service and support personnel can obtain code updates through the following web site: http://www.networking.ibm.com/525/525supt.html Download the file to a diskette and use the 5500 Express IP Control Unit’s diskette drive to update the driver and application code.

  • Page 86: Fru Part Numbers

    Chapter 5: Troubleshooting FRU Part Numbers The 5500 Control Unit is designed as a single field replaceable unit (FRU). Configuration data might be recovered using the Utility diskette. The following is a list of the field replaceable unit (FRU) part numbers:...

  • Page 87: Chapter 6: Twinax Client Cabling Requirements And Problem Solving

    Chapter 6: Twinax Client Cabling Requirements and Problem Solving This section describes the 5500 Control Unit’s twinax cabling requirements, common problems and diagnostic tests. This section contains a step-by-step procedure to resolve cabling problems and can be used for diagnosis with three different cabling methods: twinax communication over standard twinax, twinax over UTP, and twinax over IBM Cabling System.

  • Page 88: Guide To This Section

    “Twinax Cabling Schemes” on page 89 Common Cabling Concerns IBM recommends that you start here to help you understand cabling concerns for the various cabling schemes that are used. Figure 34: Common Cabling Concerns Dual mode function and Express See “Dual Mode Function...

  • Page 89: Twinax Cabling Schemes

    Advance TDR procedure See “Advanced Time Domain Relfectometry (TDR) Procedure” on page 113 IBM Cabling System IBM Cabling System tests See “IBM Cabling System Tests” on page 124 Step-by-step cable debugging See “Step-by-Step Cable Debugging” on page 105 UTP Cabling UTP cabling standards See “UTP Cabling Standards”...

  • Page 90: Dual Mode Function And Express Considerations

    In order to be compatible with these old multiplexers, the Dual Mode operation of the 5500 Control Unit can be set to disabled. If you do not want to lose the performance gain associated with this function you can use two multiplexers instead of one.

  • Page 91: Common Cable Problems And Associated Tests

    Note: Not all UTP hubs or multiplexers support the Express data stream. The IBM 7299 product family does support all functions of the Express data stream and the Dual Mode function of the workstation controller. Common Cable Problems and Associated Tests This section describes some of the most common cable problems and the common cable tests to isolate these problems.

  • Page 92: Wire Resistance

    Chapter 6: Twinax Client Cabling Requirements and Problem Solving Another OEM power monitor provides 8-channel digital storage of external voltage waveforms. The recorded waveforms may be displayed on a screen. The recording is triggered when a disturbance occurs that exceeds a predefined limit.

  • Page 93: Attenuation

    5500 Control Unit twinax connector. As most meters use a voltage to measure resistance, you will get incorrect results if there is any voltage present on the cable that you are testing.

  • Page 94: Twinax Cabling Noise

    Twinax Cabling Noise If twinax cables are connected to the 5500 Control Unit, but are not connected at the device end, or if the shield is open in a cable, this open cable or shield can conduct noise into the system and cause 5500 Control Unit system problems.

  • Page 95: Noise Filters

    Faulty grounding of any device on the same power circuit as the 5500 Control Units can cause noise to be induced. Twinax shield braiding offers a better path to ground for RF interference than a poor utility ground on a power circuit.

  • Page 96: Twinax Cable Standards

    Chapter 6: Twinax Client Cabling Requirements and Problem Solving Twinax Cable Standards The following is a list of requirements for the 5500 Control Unit using twinax cabling: • Maximum number of devices per cable run (addresses 0 through 6): 7 devices •...

  • Page 97: Part Numbers

    - This only works for RJ11 pins 2 and 5 • Twinax adapter on an IBM Cabling System The port tester monitors signals from the twinax ports on the 5500 Control Unit. Cables being checked must be connected to a 5500 twinax port.

  • Page 98: Twinax Test

    Chapter 6: Twinax Client Cabling Requirements and Problem Solving Figure 37: Port Tester Twinax Test Step 1. Move the Selector switch to the left (1) position. Step 2. Attach the appropriate port tester twinax connector to the port or cable you are testing, or to a twinax adapter attached to the port or cable your are testing.

  • Page 99: Twisted-Pair Test

    Unit. • Neither the green nor yellow light comes on. This indicates that there is no signal on the cable between the port tester and the 5500 Control Unit. This can also indicate the following: - The Selector switch is in the wrong position.

  • Page 100: Troubleshooting Twinax Cable Problems

    Chapter 6: Twinax Client Cabling Requirements and Problem Solving Step 5. Remove the port tester connector from the cable or port you tested. Step 6. If you used the twisted-pair plug, put the twisted-pair cable back into the twisted-par cable compartment. Troubleshooting Twinax Cable Problems Twinax cable or device problem determination can be a time-consuming and difficult task.

  • Page 101: Determining Your Problem Category

    Refer to “Step-by-Step Cable Debugging” on page 105. Adding the 5500 Control Unit to Existing Twinax Cable Runs When upgrading from an older twinax workstation controller to a newer workstation controller (such as the IBM 5500 Control Unit), the performance...

  • Page 102: Testing Cable Termination

    Current AS/400s log the first 5 temporary errors as well as permanent errors per device address (per IPL or IOP reset). The IBM 5500 Control Unit will also detect these errors.

  • Page 103: Advanced Troubleshooting

    IBM recommends that the copper conductor is inserted into the plug or socket hole that has a dot next to it. This is Phase Y (or A). Figure 39 is a view of a twinax connector, indicating which conductor is phase A.

  • Page 104: Grounding Of Station Protectors

    “Grounding of Station Protectors” on page 104. It is the responsibility of the customer to supply, install, and maintain station protectors, and to obtain spare units if they are required. For detailed station protector installation information refer to the IBM 5250 Information Display System: Planning and Site Preparation Guide (GA21- 9337).

  • Page 105: Step-By-Step Cable Debugging

    If no workstations come on line, ensure that the 5500 system is operational. If bad cabling is found it is the customer’s responsibility to repair the bad cabling or connections.
  • Page 106 95 ohms and the maximum is 165 ohms. (95 ohms termination + 14 ohms per 1000 feet of cable.) For the IBM Cabling System, when not measuring through the IMD at the system end, the minimum reading for termination is 75 ohms and the maximum is 145 ohms.
  • Page 107 If you have not identified the problem, you may have to meter each cable section for correct polarity and inspect each connector. When metering IBM CS, you should measure 75 ohms between each phase and ground, after you are past the Impedance Matching Device at the system end.
  • Page 108 Chapter 6: Twinax Client Cabling Requirements and Problem Solving correct the connector. Often a pin will push back into the connector when it is mated to the female connector. If this happens, you will have sufficient contact to get a good meter reading but the signal will not pass through the connection dependably.

  • Page 109: Steps To Check Cable Using A Current Probe

    Step 11. Step 10. Outdoor cable with station protectors installed. Be aware that you can not meter through the station protectors. IBM recommends that you replace the station protectors with splice joints. Return to Step 2 and after correct completion, try operating the line without the station protectors.
  • Page 110 Chapter 6: Twinax Client Cabling Requirements and Problem Solving - Frequency response: 10 KHz to 100 MHz - 50 ohm coax connector (or adapter to 50 ohm coax connector) - Sensitivity at rated load: 0.17 microamp with 1 millivolt sensitivity and 6 ohm transfer impedance.
  • Page 111 55E1I017 Figure 40: 10 mv/div vertical, 10 ms/div horizontal Figure 41 shows a good shield, WSC active (someone is signed on to a display station on this WSC and is doing some work). 55E1I018 Figure 41: 10 mv/div vertical, 10 ms/div horizontal...
  • Page 112 Chapter 6: Twinax Client Cabling Requirements and Problem Solving Figure 42 shows an open shield, WSC only polling (system running, but no one is signed on to a display station on this WSC). 55E1I019 Figure 42: 10 mv/div vertical, 10 ms/div horizontal Figure 43 shows an open shield, WSC only polling (system running, but no one is signed on to a display station on this WSC).

  • Page 113: Advanced Time Domain Relfectometry (Tdr) Procedure

    Advanced Time Domain Relfectometry (TDR) Procedure This section is for qualified maintenance personnel who service the 5500 Control Unit and twinax cabling installations. Refer to the Safety Information Booklet, S021-0030. DANGER To avoid a shock hazard, do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm.

  • Page 114: Shorted Cable

    You can also use the test to check cables installed on other products for use on IBM systems. Shorted Cable If there is a cable failure that changes the impedance of the cable, a part of the signal is reflected back to the signal source.
  • Page 115 = t (µs) × 105.0 m/µs For IBM Cabling System cable: = t (µs) × 366.7 ft/µs = t (µs) × 111.8 m/µs where: Df= the distance to the fault in feet. = the distance to the fault in meters µs...

  • Page 116: Oscilloscope Setup

    Use an X1 probe (you can use X10 probes by changing the vertical input setting) and the following extra parts: • One coaxial cable with a BNC end and alligator clips (IBM P/N 1650790); or a BNC-to-banana plug adapter and multimeter leads •...
  • Page 117 two leads of the cable to check the phase B and A lines of the cable, or to one phase line and the cable shield to check the shield continuity. 4. You can connect the other end of the cable to be tested to the workstation if the cable is terminated.

  • Page 118: Oscilloscope Settings

    Chapter 6: Twinax Client Cabling Requirements and Problem Solving Oscilloscope Settings Set the oscilloscope as follows: • Mode to Channel 1 • Trigger to Channel 1 Only • Volt/Div to 0.2 V (initial setting) • Input to ac Set A triggering as follows: •...
  • Page 119 Consider the following when you perform the tests: • To determine the length of the cable, IBM recommends that you start with the remote end of the cable open (unplugged).
  • Page 120 Chapter 6: Twinax Client Cabling Requirements and Problem Solving • Look for a bad reflection. The B setting of 0.1 msec displays cables of up to 100 m (328 ft) or the first part of longer cables. To display longer cables of up to 1524 m (5000 ft), use the B setting of up to 2 msec.
  • Page 121 7.8 × 0.2 = 1.56 µs 1.56 × 99 = 154 m or 1.56 × 324.7 = 507 ft 0.5 V A=20 µs B=0.2 µs Short 55E1I029 Figure 52: Shorted Cable Figure 53 is the same as Figure 52 but with a higher vertical gain (0.2V/div). The 0 points to start.
  • Page 122 Chapter 6: Twinax Client Cabling Requirements and Problem Solving The bumps at 1.3 and 2.5 indicate workstation connectors. The large bump at 2.5 indicates a larger mismatch (poor connection) than at 1.3. 0.2 V A=20 µs B=0.2 µs Open 55E1I031 Figure 54: Open Cable Figure 55 is not a correct display of cable reflections.
  • Page 123 Notice the steep slope changes that occur at the point indicated by the short. A reflection of more than 10% of the transmitted signal, if measured within 100 m (328 ft) of the fault, usually indicates an undesirable impedance change. 0.2 V A=20 µs Short...

  • Page 124: Ibm Cabling System Tests

    Figure 58: Impedance Matching Device Use the following procedure to test the IMD or direct-connect cable: 1. Install a test connector (see Figure 59) on the IBM Cabling System connector of the impedance matching device or direct connect cable. Planning, Installation, and Maintenance Guide...
  • Page 125 Green Orange Black Green Orange Shield Black 55E1I036 Figure 59: Test Connector 2. Check for resistances shown in Figure 60. Figure 60: IMD or Direct-Connect Cable Check Resistance Measurement Measure Resistance Impedance Matching Direct Connect Cable From Device 18 to 22 W <...
  • Page 126 Figure 61: Twinax Y Use the following procedure to test the twinax Y: 1. Install a test connector on the IBM Cabling System connector of the Y as shown in Figure 61. 2. Check for the resistances shown in Figure 62.
  • Page 127 Phase A of blue cable to phase b of blue cable > 100 kW Each phase lead to shield > 100 kW Twinax Terminator Assembly Test A twinax terminator assembly (IBM P/N 6091068) is shown in Figure 63. Phase A Phase B Phase 55E1I038...
  • Page 128 • Test for cable drop to last workstation on the data path • Test for cable drop between distribution panels. A typical IBM Cabling System data path is shown in Figure 65. A test connector like the one shown in Figure 59 on page 125 is needed for these tests.
  • Page 129 Blue O n D istribution Panel 55E1I039 Figure 65: A Simple IBM Cabling System Installation Using Twinax Accessories Test for Cable Drop from Distribution Panel to Control Unit Attention: To prevent destroying any active jobs, make sure that you do not unplug the connectors for any data path other than the one being checked.
  • Page 130 Chapter 6: Twinax Client Cabling Requirements and Problem Solving Connection to Control Unit Port Ohms Ohms Twinaxial Impedance Matching Device Distribution Panel Green 55E1I040 Figure 66: Testing Cable Drop from the Distribution Panel to the Control Unit a. Make sure that all connectors are correctly labeled so that you can restore the original configuration.
  • Page 131 Note: For a continuity test only, use only the first two connections shown in Figure 67. Figure 67: Distribution Panel to Control Unit Connect Meter Leads As Shown Below Positive Negative Normal Resistance Orange 0 to 14 Green Black 0 to 14 Green >...
  • Page 132 Chapter 6: Twinax Client Cabling Requirements and Problem Solving Figure 68: Distribution Panel to Work Stations Except Last Workstation Connect Meter Leads As Shown Below Positive at Red Cable Negative at Blue Cable Normal Resistance 0 to 14 Green Green 0 to 14 Green >...
  • Page 133 cabling system wall connector. b. Check for the resistances shown in Figure 70. Figure 70: Last Workstation Failing Connect Meter Leads As Shown Below Positive Negative Normal Resistance Orange 0 to 14 Green Black 0 to 14 Green > 5000 Green >...

  • Page 134: Utp Cabling

    Chapter 6: Twinax Client Cabling Requirements and Problem Solving Figure 71: Between Workstations Connect Meter Leads As Shown Below Positive Negative Normal Resistance Orange 0 to 135 Green Black 0 to 135 Green > 5000 Green > 5000 Shield > 5000 Shield Green >...

  • Page 135: Rj Connector Standards

    Figure 72: Electrical Specifications for Cables Category 3 Category 4 Category 5 Wire Type Unshielded Unshielded Unshielded Shielded Wire Size 24 AWG solid 24 AWG solid 24 AWG solid 24 AWG solid Next dB @ 1000ft 41 @ 1 MGz 56 @ 1 MHz 62 @ 1 MHz 62 @ 1 MHz...
  • Page 136 Chapter 6: Twinax Client Cabling Requirements and Problem Solving PAIR 3 RJ45 Jack PAIR 2 PAIR 1 PAIR 4 EIA - 568 B COLOR CODE PIN 1: White with Orange Stripe PIN 2: Orange with White Stripe PIN 3: White with Green Stripe 1 2 3 4 5 6 7 8 PIN 4: Blue with White Stripe PIN 5: White with Blue Stripe...

  • Page 137: Patch Panels

    RJ connector pinouts and phases (normal or reversed). Note: The DB15 D-shell connector that is used for IBM 5250 Emulation Family adapters has the following relationship between phase A and phase B: Phase A is pin 7 Phase B is pin 14 The IBM normal and reversed phase designations are listed in Figure 75.

  • Page 138: Resolving Utp Cabling Problems

    Step 1. Using a short length of twinax cable, attach the terminal directly to the 5500 host port. If the device successfully connects, the 5500 system, the Planning, Installation, and Maintenance Guide...
  • Page 139 2. If the device does not connect, check for problems with the system, the terminal, the cabling, or the addressing. Step 2. Attach a balun to the terminal and to the 5500 host port. Use a short UTP patch cable between the baluns, as shown in Figure 76 . Repeat this step for every balun and patch cable used.
  • Page 140 Chapter 6: Twinax Client Cabling Requirements and Problem Solving Balun IBM 7299 Hub Host (Passive or Active Terminal Device Short UTP Patch Cable Balun HEX1I016 Figure 77: Attaching to the 7299 Step 4. Replace patch cords from step 3 with the permanent system wiring (punch-down blocks, and so on), as shown in Figure 78.
  • Page 141 Figure 79, until the failing component is isolated. If the device does not connect, check for a patch panel or a punch-down block that is defective or mis-wired. Balun IBM 7299 Hub Host (Passive or Active) Short UTP Terminal...

  • Page 142: Sources For Related Cable Information

    Cabling System Planning and Installation Guide GA27-3361 Using the IBM Cabling System with GA27-3620 Communication Products IBM 5250 - Info. Display System-Planning & GA21-9337 Site Prep. Guide IBM 9404 - AS/400 Planning Guide GA21-9914 IBM 9406 - AS/400 Planning Guide...

  • Page 143: Appendix A: Safety Information

    Appendix A: Safety Information This appendix lists all of the safety notices used in this book, which includes the Danger and Caution notices. The following are the U.S. English danger notices: DANGER To avoid a shock hazard, do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm.
  • Page 144 Planning, Installation, and Maintenance Guide...
  • Page 145 Appendix A...
  • Page 146 Planning, Installation, and Maintenance Guide...
  • Page 147 Appendix A...
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  • Page 153 Appendix A...
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  • Page 155 Appendix A...
  • Page 156 Planning, Installation, and Maintenance Guide...
  • Page 157 Appendix A...
  • Page 158 Planning, Installation, and Maintenance Guide...

  • Page 159: Appendix B: Led Flash States And Wiring Diagrams

    Appendix B: LED Flash States and Wiring Diagrams This section contains the LED (light-emitting diode) flash sequence informa- tion and wiring diagrams for the 5500 Express IP Control Unit. LED Flash States The power light indicates power is available to the unit. Use the AC power cord to control the power.

  • Page 160: Cable Wiring Diagrams

    Continuously Hardware failure; your service representative Figure 82: LED States While Using Utility Diskette Ready LED Continuous Description of IBM 5500 Operation Blinking Sequences Retrieving configuration from the 5500 Restoring configuration to the 5500 Restoring factory configuration Removing Administrator password...

  • Page 161: Token Ring Pinout

    Appendix B: LED Flash States and Wiring Diagrams Table 1: DB25 Pinouts and Standards Host Port Phase DB25 PIN DB25 cables must meet or exceed these electrical characteristics shown below: 8-Pair shielded wire gage 26 (7x34) 110 ! 10 ohm @ 1 MHz Characteristic impedance DC resistance 42.6 ohm/1000’...

  • Page 162: Wan Connectors

    Table 2: Token Ring Pinout D-Shell RJ-45 Connector Connector Usage Reserved Reserved Transmit Receive Reserved Reserved Transmit WAN Connectors The WAN port provides a standard 25-pin male D-shell connector with pin assignments defined for RS-232C. The following is the 25-pin signal and pin assignment for the WAN port in a communications environment.

  • Page 163: Ethernet Connector

    Appendix B: LED Flash States and Wiring Diagrams Figure 83: WAN Port Connector Signal and Pin Assignments (25-Pin) Signal Signal Signal Data Ground Terminal Ready Data Carrier Detect Connected Ring Connected Indicator Connected Connected Connected Connected Connected Connected Connected Ethernet Connector RJ45 Connector PAIR 3 PAIR 2...
  • Page 164 Planning, Installation, and Maintenance...

  • Page 165: Appendix C: Required Configuration And Worksheet

    Appendix C: Required Configuration and Worksheet This section lists the configuration data for your 5500 Control Unit and a worksheet for your completion. 5500 Control Unit Configuration Data Figure 85, “5500 Control Unit Configuration Data” lists the configuration data; required fields are shaded The defaults are shown in the table as underscored type.
  • Page 166 Appendix C: Required Configuration and Worksheet Port X Addr Y IP Selectable 1.234.5.24 Address Default=DeviceXY X=Port Port X Addr Y Host Y=Address, no periods allowed in DeviceXY Name name LAN Configuration Enable LAN 0 or 1 Selectable; Y or N IP Address Required if enabled 1.234.6.7...
  • Page 167 Selectable; Y or N Configure SOCKS Host for Network Station Navigator SOCKS Host SOCKS Host Name of IP Address SOCKS17.ibm.com SOCKS Port SOCKS Port Number 1080 a. Addresses could be already assigned if you selected 56 devices and auto assign.

  • Page 168: Configuration Data Worksheet

    Appendix C: Required Configuration and Worksheet Configuration Data Worksheet IBM recommends that you copy the worksheet, complete the data and save it with your 5500 control unit. Figure 86: Configuration Data Worksheet Field Field Name Configuration Values Length Controller Name...
  • Page 169 Default Gateway Ring Speed (token ring only) WAN 0 Configuration WAN 0 Telephone Number User ID Password Dial Up Server Type Server Assigned DNS Server Assigned IP Address IP Address Authentication Use IP Header Compression Use Default Gateway on Remote Network Modem Mfg Modem Type Baud Rate...
  • Page 170 Appendix C: Required Configuration and Worksheet Password Dial Up Server Type Server Assigned DNS Server Assigned IP Address IP Address Authentication Use IP Header Compression Use Default Gateway on Remote Network Modem Mfg Modem Type Baud Rate Override Initialization String Flow Control Parity Data Bits...
  • Page 171 Figure 87: Port Configuration Twinax Ports IP Address Host Name Port 0 Addr 4 Port 0 Addr 5 Port 0 Addr 6 Port 1 Addr 0 Port 1 Addr 1 Port 1 Addr 2 Port 1 Addr 3 Port 1 Addr 4 Port 1 Addr 5 Port 1 Addr 6 Port 2 Addr 0...
  • Page 172 Appendix C: Required Configuration and Worksheet Figure 87: Port Configuration Twinax Ports IP Address Host Name Port 4 Addr 4 Port 4 Addr 5 Port 4 Addr 6 Port 5 Addr 0 Port 5 Addr 1 Port 5 Addr 2 Port 5 Addr 3 Port 5 Addr 4 Port 5 Addr 5...

  • Page 173: Appendix D: Using The Ibm 5250 Express Tcp/Ip Driver

    IBM 5250 Express TCP/IP Driver. Workstation Prerequisites The IBM 5250 Express TCP/IP Driver is intended only for computers running the Windows 95/98 or Microsoft NT 4.0 Operating Systems. For proper operation, ensure the following service pack updates are installed: •...
  • Page 174 Address for your use. It is not recommended that you configure your computer to use DHCP to obtain an IP Address unless you have a DHCP server near the 5500. If you specify an IP Address manually, ensure the address is the same assigned to you by the 5500.

  • Page 175: Tcp/Ip Driver Installation Steps

    Also, read the instructions and messages displayed during the installation. If you are using Windows 95/98 and using a Plug and Play IBM 5250 Express adapter in your machine for the first time, follow these steps: 1. Install the adapter and power on your system.
  • Page 176 • User Data area containing additional error information (optional). Message ID Description 0x00000006 One or more registry entries are corrupted. Reinstall the IBM 5250 Express TCP/IP Driver to correct this problem. An attempt to allocate memory for the adapter has 0x00000007 failed.

  • Page 177: Resolving Ip Addressing Issues

    If Dynamic Host Configuration Protocol (DHCP) services are not available on your network or if you manually configured the IP Address during installation of the IBM 5250 Express TCP/IP Driver, verify that your computer is using the correct IP address. See your 5500 administrator for your Appendix D...

  • Page 178: Client Access Or Personal Communications Users

    Program to help find your address. Client Access or Personal Communications Users Users of the IBM Client Access or IBM Personal Communications with the IBM 5250 Adapter must reconfigure their software to correctly communicate with the IBM 5250 Express TCP/IP Driver.

  • Page 179: Appendix E: Using The Ibm 5500 Utility Diskette

    The following is a list of utility diskette operations: Retrieve Configuration. This operation copies the configuration file from the 5500 control unit to the Utility diskette. Use this selection to save a working configuration from one IBM 5500 Control Unit for use on another 5500 Control Unit of the same model.
  • Page 180 6. If the unit is operating, press the Start/Stop button and release it when both the Test LED and Ready LED lights are on solid. After some time both LEDs will go off and the unit will shut down. If the 5500 Control Unit is not operating, plug in the power cord.
  • Page 181 Glossary bit Either of the digits 0 or 1 when used in the binary numeration system. bus A linear network topology in which all workstations are connected to a single cable. The following terms will assist you in under- standing this document. Numerics client A computer system or process that requests a service of another computer system or process that is...
  • Page 182 fiber optics The branch of optical technology con- Management Information Base (MIB) (1) A collec- cerned with the transmission of radiant power through tion of objects that can be accessed by means of a net- fibers made of transparent materials such as glass, fused work management protocol.
  • Page 183 Internet Protocol (IP) over serial lines, such as adapter port to its access unit, such as an IBM 8230 telephone circuits or RS-232 cables, interconnecting Token-Ring Network Controlled Access Unit.
  • Page 184 Glossary 184...
  • Page 185 86 Numerics determining cable lengths 31 5250, TCP/IP transport driver 173 DHCP relay agent 25 5500 Express IP Control Unit Distributed Protocol Interface (DPI) 181 01E model 23 DNS (Directory Numbers) 80 01TModel 23 02E Model 23...
  • Page 186 105 steps before servicing 69 NC (network computer) navigator, configuring SOCKS 63 subnetting NetView 182 example 43 network station boot server, using the 5500 47 subnetting, understanding 41 noise filters 95 support, technical xi noise, twinax cabling 94 notices vii...
  • Page 187 related sources 142 restore configuration 179 required station protectors 103 restore factory default configuration 179 requirements 97 retrieve configuration 179 specifications when upgrading your AS/400 97 steps to prepare 179 tests UTP cabling standards 134 cable termination 102 DC cable test 93 WAN configuration using ConfigurationPlus 62 phase connection 102 warranty service information v...
  • Page 188 Index 4...
  • Page 189 Thank you for your responses. May we contact you? Yes No When you send comments to IBM, you grant IBM a nonexclusive right to use or distribute your comments in any way it believes appropriate without incurring any obligation to you.,...
  • Page 190 UNITED STATES FIRST-CLASS MAIL PERMIT NO. 40 ARMONK, NEW YORK POSTAGE WILL BE PAID BY ADDRESSEE Department NAJ/101 IBM Corporation 8501 IBM Drive Charlotte, NC USA 28262-8563 Fold and Tape Please do not staple Fold and Tape Cut or Fold S05J-4934-00...
  • Page 192 ® Part Number: P05J4934 Printed in the United States of America on recycled paper containing 10% recovered post-consumer fiber. S05J-4934-00...

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