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Digital Equipment DECconcentrator 500 Installation Manual

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For: CDAY
Printed on: Fri, Jan 10, 1992 13:06:04
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  • Page 1 For: CDAY Printed on: Fri, Jan 10, 1992 13:06:04 From book: Frontcover in CON_7x9 Document: DEFCN Last saved on: Fri, Jan 10, 1992 10:34:09 Document: classA/L hw Last saved on: Fri, Jan 10, 1992 10:34:18 Document: Title Last saved on: Fri, Jan 10, 1992 10:34:43 Document: cpyrt 7x9 Last saved on: Fri, Jan 10, 1992 10:34:54 Document: footerfrontmatter...
  • Page 2 DECconcentrator Installation Order Number: EK-DEFCN-IN-004...
  • Page 3 CAUTION People installing the cabling system described in this manual should know local building codes, fire codes, and any other applicable codes or regulations. The manufacturers or their distributors and agents will not be responsible for damage due to improperly installed cabling, neglect, misuse, or improper connection of devices to the cabling system.
  • Page 4 DECconcentrator Installation December 1991 This manual describes how to install and verify the operation of the DECconcentrator 500 unit. Refer to the specific option card installation manual to install your option card. Supersession/Update Information: This is a revised manual. Order Number: EK-DEFCN-IN-004...
  • Page 5 December 1991 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 respon- sibility for any errors that may appear in this document.

  • Page 6: Table Of Contents

    Safety Preface Introducing the DECconcentrator 500 Product Overview ........
  • Page 7 ......2–6 Installing the DECconcentrator 500 Installing the Desktop DECconcentrator 500 ....3–2 Installing the Rackmount DECconcentrator 500 .
  • Page 8 ....... A–3 Power Supply Specifications ......A–4 DECconcentrator 500 Identification List Related Documents...
  • Page 9 Glossary Index Figures 1–1 DECconcentrator 500 Controls and Indicators ....1–4 2–1 Checking the Shipping Contents ......
  • Page 10 A–3 Operating Environment Specifications ....A–2 A–4 Shipping Environment ....... . A–3 A–5 Electrical Specifications...
  • Page 11 Safety Warnings and cautions that appear in this manual are defined as follows: WARNING Contains information to prevent personal injury. CAUTION Contains information to prevent damage to equipment. VORSICHT Enthält Informationen, die beachtet werden müssen, um den Benutzer vor Schaden zu bewahren. ACHTUNG Enthält Informationen, die beachtet werden müssen, um die Geräte vor Schaden zu bewahren.
  • Page 12 The warnings and cautions you must observe for the hardware described in this manual are listed below in English, German, French, and Spanish. The pages on which these safe- ty messages appear are also listed. CAUTION Static electricity can damage modules and electronic com- ponents.
  • Page 13 WARNING For continued protection against risk of electric shock, this product must be connected to a three-wire wall receptacle that has its grounding terminal reliably connected to the building’s safety earth ground. (Pages 2-3, 3-8) VORSICHT Um optimale Sicherheit zu gew hrleisten, dürfen Sie es nur an eine ordnungsgem ß...
  • Page 14 DECconcentrator 500 should access components inside the unit. (Pages 3-1, 5-2) VORSICHT Die DECconcentrator 500 enh lt keinerlei Teile, die der Be- nutzer warten könnte. W hrend der Installation sollte das Ger t auf keinen Fall geöffnet werden. Reparaturen jeglicher Art an der DECconcentrator 500 dürfen nur von elektrotech-...
  • Page 15 WARNING To avoid bodily injury or damage to the equipment, do not con- nect the power cord or any other cable until you are instructed to do so in these procedures. Do not apply power to the unit unless all covers are installed. (Page 3-1) VORSICHT Schließen Sie das Netzkabel oder andere Kabel erst an,...
  • Page 16 ATTENTION Afin de ne pas endommager les composants électroni- ques, assurez-vous que la température ambiante n’excède pas 50C à la prise d’air du DECconcentrator 500. PRECAUCION Para evitar daños a los componentes electrónicos, no so- brepasar 50 grados centígrados (122 grados Farenheit) de temperatura ambiente en la toma de aire del DECon- centrator 500.
  • Page 17 WARNING To avoid bodily injury, use care when connecting the concen- trator power cord. Regulations in some countries may require an authorized person to connect the power. Make sure you connect the power cord to a grounded wall outlet. (Page 3-8) VORSICHT Netzspannung ist lebensgef hrlich.
  • Page 18 WARNING Some fiber optic equipment can emit laser light that can injure your eyes. Never look into an optical fiber or connector port. Always assume the cable is connected to a light source. (Page 5–7) VORSICHT Schauen Sie niemals direkt in ein Glasfaserkabel oder ei- nen Glasfaseranschluß.
  • Page 19 Preface This manual explains how to install the DECconcentrator 500 unit and how to check its installation and operation. This manual also includes descriptions of the concen- trator controls and indicators. Intended Audience This manual is intended for the hardware installer and system/network manager who is familiar with fiber optic network technologies, the Fiber Distributed Data Inter- face (FDDI) ANSI X3T9 standards, and safety procedures.
  • Page 20 Appendix A Contains the DECconcentrator 500 physical, environmen- tal, operating, electrical, and power supply specifications. Appendix B Contains the DECconcentrator 500 Identification List. Appendix C Lists related documents. Conventions Used in This Manual This manual users the following conventions: Convention...

  • Page 21: Introducing The Decconcentrator 500

    1.1.1 Out-of-Band Management The DECconcentrator 500 has a 25-pin D-subminiature connector on the input/out- put (I/O) panel. You can connect a terminal directly to the 25-pin D-subminiature connector. You can also connect to a terminal through a Scholar modem (or equiva- lent).

  • Page 22: Optical Bypass

    1.2 Location You can install the DECconcentrator in a standalone configuration or in an extended local area network (LAN). You can place and use the DECconcentrator 500 in a main distribution frame (MDF), intermediate distribution frame (IDF), horizontal distri- bution frame (HDF), office distribution frame (ODF), satellite distribution frame (SDF), open office environment, and a computer room.

  • Page 23: Power Supply

    The card cage contains three slots for option cards. Option cards inserted into the card cage connect to the controller/backplane through 120-pin connectors. 1.4.4 Option Cards Several option cards are available for the DECconcentrator 500. Contact your Digi- tal representative for more information. Option cards can be Network Management Cards or Port Cards.

  • Page 24: Controls And Indicators

    The controls and indicators are located on the main frame of the DECconcentrator 500 unit and on the option cards (see Figure 1–1). The light emitting diode (LED) indicators provide operational and fault status. Figure 1–1: DECconcentrator 500 Controls and Indicators Controller/backplane fault LED Multimode Network...

  • Page 25: Decconcentrator 500 Controls

    Table 1–1 describes the DECconcentrator 500 controls. Table 1–2 describes the function of each LED. Table 1–1: DECconcentrator 500 Controls Control Description AC power socket Provides connection to ac power source. Circuit breaker Provides overcurrent protection for the concen- trator. The white center of the circuit breaker pops out if the circuit breaker trips.

  • Page 26: Option Card Indicators

    Ring operation Network Green If ON, the ring is Management operating. Card Card fault Card If ON, there is a problem with the card. Physical Card Green/ Green Indicates the state of the connection physical connection. status 1–6 DECconcentrator 500 Installation...

  • Page 27: Operational Software

    Out-of-band management • Optical bypass Refer to Chapter 4 for the out-of-band management functions and capabilities. Refer to the DECelms Use manual and the DECmcc Concentrator Access Module Use manual for network management functions and capabilities. Introducing the DECconcentrator 500 1–7...

  • Page 28: Checking The Shipment Contents

    This chapter describes the shipment contents and site-preparation information. 2.1 Checking the Shipment Contents A DECconcentrator 500 shipment consists of one or more boxes, depending on the option equipment ordered. Refer to Figure 2–1 to check the contents of your ship- ment.

  • Page 29: Checking The Shipping Contents

    3. Save all packaging material. To prevent damage, repack the unit or parts in the original packing material when transporting or shipping the unit. Figure 2–1: Checking the Shipping Contents Loopback connector (option card specific) Rackmount kit Option card installation manual DECconcentrator 500 Installation manual Power cord (country–specific) LKG–5424-91l 2–2 DECconcentrator 500 Installation...

  • Page 30: And International Power Cords

    The DECconcentrator 500 switches automatically to 110/120 Vac or 200/240 Vac. No action is required to set the voltage. Table 2–1 lists the order numbers for the in- ternational power cords.

  • Page 31: Decconcentrator Model And Serial Numbers

    DECconcentrator Model and Serial Numbers Network Management Card Tabletop Serial and model number DECconcentrator 500 25-pin D-subminiature P/N DEFCN–BC connector P/N DEFCN–BD Port Card Network Management Card Rackmount 25-pin D-subminiature connector DECconcentrator 500 P/N DEFCN–AC P/N DEFCN–AD Port Card LKG–4918–91I 2–4 DECconcentrator 500 Installation...

  • Page 32: Sample Cable Plant Log-Book Entry

    The DECconcentrator 500 is available as DEFCN-AC, DEFCN-AD, DEFCN-BC, and DEFCN-BD. You may have option cards already installed in your concentrator. Refer to the Option Card Installation manual shipped with the concentrator for op- tion card information. • DEFCN-AC is for use in a rack and contains a U.S. power cord. It does not have a plastic cover.

  • Page 33: Site Preparation Checklist

    Make sure the cables are installed, tested, tagged, and certified. Note the cable length and corrected loss (see Table 2–2) If the DECconcentrator 500 is to be connected to a bridge, make sure the ap- propriate bridge is installed and the required bridge-to-DECconcentrator 500 cabling is in place.
  • Page 34 Digital and others in the industry. Satellite Distribution Frame (SDF) Installation If you are installing the DECconcentrator 500 in a standalone SDF, or as part of a DECconnect System installation, refer to the DECconnect System Fiber Optic In- stallation manual.

  • Page 35: Installing The Decconcentrator 500

    Installing the DECconcentrator 500 This chapter describes how to install the DECconcentrator 500 and how to verify the operational status. WARNING The DECconcentrator 500 contains no user-serviceable parts. During installation, do not open the unit for any reason. If the concentrator needs repair, only qualified...

  • Page 36: Installing The Desktop Decconcentrator 500

    Option Card Installation manual for switch set- tings. 3.1 Installing the Desktop DECconcentrator 500 The desktop concentrator has a plastic cover. The DECconcentrator 500 runs cooler ° without a plastic cover. If the ambient room temperature is normally above 35 °...

  • Page 37: Removing The Plastic Cover

    Figure 3–1: Removing the Plastic Cover Screws for feet Rubber feet Screws to chassis Spacer LKG–3804–90I DECconcentrator 500 Installation 3–3...

  • Page 38: Installing The Rackmount Decconcentrator 500

    3.2 Installing the Rackmount DECconcentrator 500 The DECconcentrator 500 can be mounted in a standard 48-centimeter (19-inch) RETMA rack cabinet using the rackmount kit. Install the concentrator in the rack so that the I/O panel is visible to the network/ma- nager for monitoring the status LEDs.

  • Page 39: Installing The Rackmount Brackets

    Save the screws for future use. 2. Install the rackmount brackets. Use the six 8-32 Phillips-head screws with lock washers provided in the rackmount kit. Figure 3–2: Preparing the Unit for Installation in the Rack LKG–3805–91I DECconcentrator 500 Installation 3–5...

  • Page 40: Preparing The Rack

    2. Attach the four U-nuts to both rails at the front of the cabinet (Figure 3–3). Figure 3–3: Preparing the Rack 4 holes 7 holes 4 holes U–nuts 2.54 cm (1 in) Mounting bracket (shown for reference only) Front of cabinet LKG–3806–90I 3–6 Installing the DECconcentrator 500...

  • Page 41: Installing The Concentrator In A Rack

    10–32 Phillips-head screws with lock washers provided in the rackmount kit. 3. Do not connect any cables until instructed to do so. Figure 3–4: Installing the Unit in the Rack Front of cabinet (4) 10-32 Phillips-head screws with (4) lock washers LKG–3807–91l DECconcentrator 500 Installation 3–7...

  • Page 42: Installing The Option Card

    Port Cards, install a Port Card in the top slot. 3.4 Connecting the Power Cord The DECconcentrator 500 unit does not have a power on/off switch. Plugging in the power cord applies power directly to the concentrator and initiates the self-test. The DECconcentrator 500 switches automatically to 100/120 Vac or 200/240 Vac.

  • Page 43: Connecting The Power Cord

    2. Refer to Figure 3–5 and plug the power cord into the concentrator (1) and then into the wall outlet (2). This applies power to the concentrator and starts the self-test. Allow 15 seconds for the self-test to complete. Figure 3–5: Connecting the Power Cord LKG–5052–91I DECconcentrator 500 Installation 3–9...

  • Page 44: Checking The Operational Status

    = ON (Green only;on solid) plane Power = ON (Green only;blinking) DECconcentrator Card Port A Port B Ring Card Port 1 Port 2 Port 3 Port 4 Fault Oper– Fault ational Network Management Card Port Cards LKG–4920–91I 3–10 Installing the DECconcentrator 500...

  • Page 45: Connecting Cables And Connectors

    2. Connecting the cable to the appropriate connector and port 3. Observing the LEDs when you are connecting the cables 4. Adding the cable identification numbers to the DECconcentrator 500 Identifi- cation List in Appendix B When connecting cables, use the following guidelines: –...

  • Page 46: Using Out-Of-Band Management

    4.1 Introduction Using out-of-band management is optional and is not necessary for the operation of the unit. OBM allows you to manage the DECconcentrator 500 unit with or without a Network Management Card. Using OBM does not require any special management station or software other than a terminal.

  • Page 47: Connecting Obm Directly To A Terminal

    1. Set your terminal to a 2400 baud rate and 8 bits/no parity/1stop bit. 2. Connect one end of the cable to the 25-pin D-subminiature connector on the DECconcentrator 500 I/O panel and the other end of the cable to your termi- nal.

  • Page 48: Using A Modem

    Terminal Scholar modem Modem LKG-5633-90I 3. Connect the Scholar modem (or equivalent) to the DECconcentrator 500 OBM port. Ensure that the Data Terminal Ready (DTR) switch is turned on. – Digital recommends using P/N BC22R-xx cables with 25-pin connectors at each end. If you use P/N BC16E-xx cables, use a passive adapter (P/N H8575A) at each end of the cable.
  • Page 49 If you choose an option that requires user input, a the “>” prompt appears at the bottom of the screen and character appears at the option you have selected. Enter the required information at the “>” character. 4–4 DECconcentrator 500 Installation...

  • Page 50: Displaying The Main Menu

    The Main Menu displays the options available shown in Example 4–1. Select an op- tion number and follow the text prompts at the bottom of the screen. Example 4–1: Displaying the Main Menu Using Out-of-Band Management 4–5...

  • Page 51: Displaying The Show Menu Option

    Example 4–2: Selecting the Entity To continue, follow steps 1 and 2. 1. Enter an Entity option number. After you enter an Entity option, the Sub- group heading is put in reverse video, as shown in Example 4–3. 4–6 DECconcentrator 500 Installation...

  • Page 52: Selecting The Subgroup

    2. Enter the Subgroup option number . Example 4–3: Selecting the Subgroup Using Out-of-Band Management 4–7...

  • Page 53: Displaying The Show Device Status Option

    4.4.1 Displaying the Show Device Status Option Example 4–4 shows the display for the selection of Entity option 1 (Device), and Subgroup option 1 (Status). Example 4–4: Displaying Show Device Status 4–8 DECconcentrator 500 Installation...

  • Page 54: Displaying The Show Device Characteristics Option

    4.4.2 Displaying the Show Device Characteristics Option Example 4–5 shows the display for the selection of Entity option 1 (Device) and Subgroup option 2 (Characteristics). Example 4–5: Displaying Show Device Characteristics Using Out-of-Band Management 4–9...

  • Page 55: Displaying The Show Device Counters Option

    4.4.3 Displaying the Show Device Counters Option Example 4–6 shows the display for the selection of Entity option 1 (Device ) and Subgroup option 3 (Counters). Example 4–6: Displaying Show Device Counters 4–10 DECconcentrator 500 Installation...

  • Page 56: Displaying The Show Line Status Option

    4.4.4 Displaying the Show Line Status Option Example 4–7 shows the display for the selection of Entity option 2 (Line) and Sub- menu option 1 (Status). Example 4–7: Displaying Show Line Status Using Out-of-Band Management 4–11...

  • Page 57: Displaying The Show Line Characteristics Option

    Press any key to view the rest of the data. When you go to the next screen of data, you lose the first screen. To display the previous screen, go back to the Show Menu and select the option again. Example 4–8: Displaying Show Line Characteristics 4–12 DECconcentrator 500 Installation...

  • Page 58: Displaying Show Line Characteristics (Cont.)

    Example 4–9: Displaying Show Line Characteristics (Cont.) Using Out-of-Band Management 4–13...

  • Page 59: Displaying The Show Line Counters Option

    Press any key to view the rest of the data. When you go to the next screen of data, you lose the first screen. To display the previous screen, go back to the Show Menu and select the option again. Example 4–10: Displaying Show Line Counters 4–14 DECconcentrator 500 Installation...

  • Page 60: Displaying Show Line Counters (Cont.)

    Example 4–11: Displaying Show Line Counters (Cont.) Using Out-of-Band Management 4–15...

  • Page 61: Displaying The Show Phy Option

    Enter a subgroup option number. NOTE If you enter an invalid PHY number, the console beeps and an error message appears at the bottom of the screen. Example 4–12: Displaying Show PHY 4–16 DECconcentrator 500 Installation...

  • Page 62: Displaying The Show Phy Status Option

    4.4.8 Displaying the Show PHY Status Option Example 4–13 shows the display for the selection Entity option 3 (PHY). Enter a PHY number at the “>” character, press and select Subgroup option 1 (Sta- tus). Example 4–13: Displaying Show PHY Status Using Out-of-Band Management 4–17...

  • Page 63: Displaying The Show Phy Characteristics Option

    4.4.9 Displaying the Show PHY Characteristics Option Example 4–14 shows the display for selecting Entity option 3 (PHY). Enter a PHY number at the “>” character, press and select Subgroup option 2 (Characteris- tics). Example 4–14: Displaying Show PHY Characteristics 4–18 DECconcentrator 500 Installation...

  • Page 64: Displaying The Show Phy Counters Option

    4.4.10 Displaying the Show PHY Counters Option Example 4–15 shows the display for the selection of Entity option 3 (PHY). Enter a PHY number at the “>” character, press and select Subgroup option 3 (Count- ers). Example 4–15: Displaying Show PHY Counters Using Out-of-Band Management 4–19...

  • Page 65: Displaying The Set Menu

    To access the Internet Protocol (IP) address, select option 1 of the Set Menu. Enter the IP address at the prompt and press . The IP address you entered appears at the bottom of the screen. 4–20 DECconcentrator 500 Installation...

  • Page 66: Selecting Gateway Address Option

    4.5.2 Selecting Gateway Address Option To access the gateway address, select option 2 of the Set Menu. Enter the Gateway address at the prompt and press . The Gateway address you entered is appears at the bottom of the screen. 4.5.3 Selecting the Requested TRT Option To access the requested Token Rotation Time (TRT), select option 3 of the Set Menu.

  • Page 67: Selecting The Password Option

    After you set a password, you are prompted for that password to access the following options of the Main Menu: • Option 2 (Set) • Option 3 (Enable PHY) • Option 4 (Disable PHY) • Option 5 (Add trap address) • Option 6 (Remove trap address) • Option 7 (Reset) 4–22 DECconcentrator 500 Installation...

  • Page 68: Selecting The Defaults And Reset Option

    4.5.9 Selecting the Defaults and Reset Option Selecting option 9 of the Set Menu resets any system parameters that have been al- tered through remote management to the default settings. “Set to defaults and reset, continue?” appears at the bottom of the screen. Press for yes or for no.

  • Page 69: Selecting The Add Trap Address Option

    If your terminal is set for 19200 baud rate, resetting will default to 2400 baud rate. After reset is complete, you must change the setup on your terminal to 2400. Change the baud rate back to 19200 by following the procedures in Section 4.2. 4–24 DECconcentrator 500 Installation...

  • Page 70: Problem Solving

    5.1 Introduction This chapter helps you identify and correct problems that may occur during installa- tion of the DECconcentrator 500. These procedures are for diagnosing and correct- ing hardware-related problems only. As you perform the problem-solving steps, record the symptoms, LED state, and how you corrected the problem.
  • Page 71 During installation, do not open the unit for any reason. If the concentrator needs repair, only qualified personnel familiar with safety procedures for electrical equipment and the DECconcentrator 500 should access components inside the unit. WARNING Always remove the power cord from the unit and ac source when performing any removal and replace- ment procedures.

  • Page 72: Running The Self-Test

    Refer to your Op- tion Card Installation manual. The DECconcentrator 500 self-test runs for approximately 15 seconds. Observe the power, fan, and controller/backplane LEDs to make sure the concentrator is opera- tional. After self-test is complete, the port LEDs blink green.

  • Page 73: Diagnosing Problems

    Controller/backplane LED is on Problem with the Controller/ Notify your system/network manager (red) and all option card fault backplane, LED, or connec- or service provider. LEDs are on (red). tion to the power supply. 5–4 DECconcentrator 500 Installation...

  • Page 74: Network Management Card Problem Solving

    Table 5–2: Network Management Card Problem Solving Symptom Probable Cause Corrective Action Card Fault LED on (red), other Problem with the Network The card needs to be replaced or re- Port Card LEDs off, unit LEDs Management Card. paired. Notify your system/network are normal.

  • Page 75: Optical Bypass Relay Problem Solving

    Table 5–3: Optical Bypass Relay Problem Solving Symptom Probable Cause Corrective Action DECconcentrator 500 OK, Optical bypass relay is stuck Verify by removing the relay but is bypassed from the dual in the bypass position. Or the and observing that communi- ring.

  • Page 76: Loopback Testing

    5.5 Loopback Testing Use the loopback test to determine whether the DECconcentrator 500 Port Card or Network Management Card is faulty, or whether there’s a problem with the cable or the device at the other end of the cable. This test verifies the ability to transmit and receive.

  • Page 77: Problem Solving During Loopback Testing

    2. Check your warranty or service agreement for information about getting ser- vice and the type of service you have. 3. Notify your system/network manager or authorized service representative about the problem. 4. Give a copy of your problem-solving record to your system/network manager or service representative. 5–8 DECconcentrator 500 Installation...

  • Page 78: Specifications

    Specifications This appendix contains the DECconcentrator 500 physical, environmental, operat- ing, electrical, and power supply specifications. A.1 Physical Specifications Table A–1 (rackmount) and Table A–2 (tabletop) list the DECconcentrator 500 physical specifications. Table A–1: Rackmount Unit Physical Specifications Parameter Dimension Height 13.33 cm...

  • Page 79: Environmental Specifications

    A.2 Environmental Specifications The DECconcentrator 500 is designed to operate in an open office or in an exposed area of an industrial site. The concentrator is not designed to operate in an air plenum. CAUTION To prevent damage to electronic components, do not exceed 50°...

  • Page 80: Electrical Specifications

    Altitude Sea level to 9.1 km (30,000 ft) A.3 Electrical Specifications The DECconcentrator 500 unit has power-cord options for all major Digital markets. Table A–5 lists the DECconcentrator 500 electrical specifications for a fully confi- gured concentrator. Table A–5: Electrical Specifications...

  • Page 81: Power Supply Specifications

    + 5.0 Vdc at 18 amps and -5.0 Vdc at 10 amps • +12.0 Vdc at 2 amps • Overvoltage protection • Thermal shutdown • Automatic-adjust for input voltage to 120-Vac operation and 240-Vac opera- tion A–4 DECconcentrator 500 Installation...

  • Page 82: Decconcentrator 500 Identification List

    – ports used – switch 1 setting – switch 2 setting • Port Card – cable ID number – ports used Fill in the DECconcentrator 500 Identification List (see Figure B–1) and give a copy to the system/network manager. B–1...

  • Page 83: Decconcentrator 500 Identification List

    Figure B–1: DECconcentrator 500 Identification List DECconcentrator 500 Model Number DECconcentrator 500 Serial Number Network Management Card: Hardware Address Network Management Card: switch 1 setting Network Management Card: switch 2 setting Network Management Card: ports used Port A cable ID number...

  • Page 84: Related Documents

    This manual describes the installation procedures for the ThinWire and shielded twisted-pair option cards. • DECconcentrator 500 Problem Solving (Order No. EK-DEFCN-PS) This manual describes isolating DECconcentrator 500 faults to the field-re- placeable unit (FRU) and removing and replacing each FRU. This is a field problem-solving manual. C–1...
  • Page 85 Software) to configure, manage, and monitor the LAN Bridge 100, LAN Bridge 150, LAN Bridge 200, DECbridge 500, and DECconcentrator 500. • DECmcc Installation (Order No. AA-PD58-BTE) This manual describes how to plan for and install DECmcc. C–2 DECconcentrator 500 Installation...
  • Page 86 • DECmcc Concentrator Access Module Use (Order No. AA-PH31A-TE) This manual describes the DECconcentrator 500 entity model, entity manage- ment, and the directives necessary to perform typical management operations. • Fiber Distributed Data Interface System Level Description (Order No.
  • Page 87 Glossary American National Standards Institute (ANSI) An organization that compiles and publishes computer industry standards. ANSI See American National Standards Institute. attenuation Magnitude of optical power loss usually expressed in units of decibels (dB). bypass The ability of a station to be optically or electronically isolated from the network while maintaining the integrity of the ring.
  • Page 88 See Dual Attachment Concentrator. See Dual Attachment Station. Dual Attachment Concentrator (DAC) A concentrator that offers two connections to the FDDI network capable of accom- modating the FDDI dual (counter-rotating) ring and additional ports for connection of other concentrators or FDDI stations. Dual Attachment Station (DAS) An FDDI device that offers two connections to the FDDI network capable of accom- modating the FDDI dual (counter-rotating) ring.
  • Page 89 fiber optic cable A transmission medium designed to transport signals in the form of pulses of light. fiber optics A technology whereby signals are transmitted over an optical waveguide medium through the use of light-generating transmitters and light-detecting receivers. LASER Light Amplification by Stimulated Emission of Radiation.
  • Page 90 Physical Media Dependent A media-dependent FDDI protocol that provides for the medium, connector, and transmit and receive power levels. See Physical Media Dependent. port An entrance to or exit from a network; also an access point for data entry or exit. Port Card An option card for the concentrator that provides the connection to single attach- ments.
  • Page 91 station An addressable node on an FDDI ring capable of transmitting, repeating, and receiv- ing data. token A bit pattern consisting of a unique symbol sequence that circulates around the ring following a data transmission. The token grants stations the right to transmit. Glossary–5...
  • Page 92 Circuit breaker, 1–5 option card, 3–8 Configuration rules, 1–2 rack, 3–6 Connectors warnings, 3–1 connecting, 3–11 identifying, 3–11 Controller/backplane, 1–3 Light emitting diode concentrator operation status, 3–10 DECconcentrator 500 function, 1–5 controls and indicators, 1–4 Light emitting diodes (LEDs), 1–4 Index–1...
  • Page 93 Power cord connecting, 3–9 Network Management Card order number, 2–4 installation, 3–8 types available, 2–3, 2–4 location, 3–8 Power supply, 1–3 problem solving, 5–5 specifications, A–4 switch settings, 3–2 Problem solving testing ports, 3–2 by symptom, table, 5–4 loopback test corrective action, 5–8 function, 5–7 procedure, 5–7...
  • Page 94 starting, 3–8 Specifications electrical, A–3 Shipment contents environmental, A–2 checking, 2–1, 2–2 physical, A–1 unpacking, 2–1 power supply, A–4 Site preparation shipping, A–3 cable certification, 2–5 checklist, 2–6 information, 2–5 office, 2–7 service, 2–7 Thermal protection, 1–3 Index–3...
  • Page 95 Digital’s local subsidiary or approved distributor Internal orders should be placed through Publishing and Circulation Services (P&CS), Digital Equipment Corporation, 10 Forbes Road, Northboro, Massachusetts 01532–2597 *Any prepaid order from Puerto Rico must be placed with the Local Digital Subsidiary:...
  • Page 96 DECconcentrator 500 Installation EK-DEFCN-IN-004 Please return this card. Your comments and suggestions will help us improve the quality and usefulness of our publications. How did you use the manual to install the device, as a reference or as a step by step procedure?
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