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Paradyne 727 manual

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Table of contents for the manual

  • Page 1

    AREA CODE CHANGE Please note that the area code for Paradyne Corporation in Largo, Florida has changed from 813 to 727. For any Paradyne telephone number that appears in this manual with an 813 area code, dial 727 instead.[...]

  • Page 2

    MODEL 7510 DSU USER’S GUIDE Document No. 7510-A2-GB20-00 March 1997[...]

  • Page 3

    Printed on recycled paper A 7510-A2-GB20-00 March 1997 Copyright  1997 Paradyne Corporation. All rights reserved. Printed in U.S.A. Notice This publication is protected by federal copyright law . No part of this publication may be copied or distributed, transmitted, transcribed, stored in a retrieval system, or translated into any human or compu[...]

  • Page 4

    i 7510-A2-GB20-00 March 1997 Contents About This Guide  Document Purpose and Intended Audience v . . . . . . . . . . . . . . . . . . . . . . . . .  Document Summary v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Product-Related Documents vi . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 5

    Contents ii 7510-A2-GB20-00 March 1997 4 Monitoring the DSU  What to Monitor 4-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Viewing System and T est Status 4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Health and Status 4-3 . . . . . . . . . . . . . . . . . . . [...]

  • Page 6

    Contents iii 7510-A2-GB20-00 March 1997 A Configuration Option T ables  Overview A-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  System Options Menu A-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Network Interface Options Menu A-4 .[...]

  • Page 7

    v 7510-A2-GB20-00 March 1997 About This Guide Document Purpose and Intended Audience This guide contains information needed to set up, configure, and operate the Model 7510 DSU and is intended for installers and operators. Document Summary Section Description Chapter 1 About the DSU. Describes the DSU features and shows examples of typical configur[...]

  • Page 8

    About This Guide vi 7510-A2-GB20-00 March 1997 Section Description Glossary Defines acronyms and terms used in this document. Index Lists key terms, acronyms, concepts, and sections in alphabetical order . Pr oduct-Related Documents Document Number Document Title 7510-A2-GN10 Model 7510 DSU Startup Instructions T o order additional product document[...]

  • Page 9

    1-1 7510-A2-GB20-00 March 1997 About the DSU 1 Model 7510 DSU Featur es The DSU provides an interface between the customer premises equipment (CPE) and a Digital Data Service (DDS) network. The DSU’s features and capabilities include:  Easy Installation. Connects to your equipment using standard connectors and cables.  Easy Configuration. A[...]

  • Page 10

    About the DSU 1-2 7510-A2-GB20-00 March 1997 T ypical DSU Configurations The following illustration shows a typical LAN/W AN interconnection application for the DSU. The routers connected to the DSU at each location provide the LAN interconnection. DDS Network 497-15084-01 DSU DSU Router Router The DSU can also be used in a Frame Relay network. Fra[...]

  • Page 11

    About the DSU 1-3 7510-A2-GB20-00 March 1997 User Interfaces There are two types of user interfaces for the DSU:  Menu-driven Asynchronous T erminal Interface (A TI) screens (see Using the Asynchronous T erminal Interface , Chapter 2).  Front panel LED status indicators (see Monitoring the DSU , Chapter 4). OK ALARM TEST DM OOS OOF NS TXD (10[...]

  • Page 12

    2-1 7510-A2-GB20-00 March 1997 Using the Asynchr onous T erminal Interface 2 Connecting to the T erminal Port The device used for the Asynchronous T erminal Interface (A TI) can be a VT100-compatible async terminal, or a PC running emulation software. The terminal or PC can be connected to the T erminal port directly , or through an external modem.[...]

  • Page 13

    Using the Asynchronous T erminal Interface 2-2 7510-A2-GB20-00 March 1997 Initiating an A TI Session The user interface is blank until activated. Press Return to activate the user interface. The first time you do this the Main Menu screen is displayed. main Device Name: Model: 7510 MAIN MENU Status Test Configuration Control –––––––?[...]

  • Page 14

    Using the Asynchronous T erminal Interface 2-3 7510-A2-GB20-00 March 1997 Configuration Edit/Display • System • Network • Data Port • T erminal Port Status • System and T est Status • Network Interface Status • Network Performance Statistics • Display LEDs • Identity T est • Network T ests • Data Port T ests • Lamp T est •[...]

  • Page 15

    Using the Asynchronous T erminal Interface 2-4 7510-A2-GB20-00 March 1997 Screen W ork Areas There are two user work areas:  Screen area – This is the area above the dotted line that provides the menu path, menus, and input fields. The menu path appears as the first line on the screen. In this manual, the menu path is presented as a menu selec[...]

  • Page 16

    Using the Asynchronous T erminal Interface 2-5 7510-A2-GB20-00 March 1997 Navigating the Scr eens Y ou can navigate the screens by: H Using keyboard keys H Using screen function keys H Switching between the two screen work areas Keyboard Keys Use the following keyboard keys to navigate within the screen. T o . . . Press . . . Move cursor between th[...]

  • Page 17

    Using the Asynchronous T erminal Interface 2-6 7510-A2-GB20-00 March 1997 The current setting or value appears to the right of the field name. The valid choices for the field are displayed in the screen function area. Y ou can enter information into a selected field by typing in the first letter or letters of a field value or command. If a field is[...]

  • Page 18

    Using the Asynchronous T erminal Interface 2-7 7510-A2-GB20-00 March 1997 Switching to the Screen Function Key Ar ea Selecting Ctrl-a allows you to switch between the two screen work areas to perform all screen functions.  Procedur e T o access the screen function area below the dotted line: 1. Press Ctrl-a to switch from the screen area to the [...]

  • Page 19

    Using the Asynchronous T erminal Interface 2-8 7510-A2-GB20-00 March 1997 Ending an A TI Session Use the E xit function key from any screen to terminate the session.  Procedur e T o end an A TI session: 1. Press Ctrl-a to go to the screen function key area below the dotted line. 2. Save changes if required. A confirmation message appears if you [...]

  • Page 20

    3-1 7510-A2-GB20-00 March 1997 Customizing the DSU 3 Identifying the Device and System Use the Device Name screen to determine the name that will be displayed at the top of all A TI screens, and system information that will be displayed on the Identity screen. T o access the Device Name screen, follow this menu selection sequence: Main Menu → Con[...]

  • Page 21

    Customizing the DSU 3-2 7510-A2-GB20-00 March 1997  Procedur e T o enter Device Name screen information: 1. Position the cursor in the Device Name field. Enter a name unique in your system to identify the unit. The maximum length of Device Name is 20 characters. 2. Position the cursor in the System Name field. Enter a name unique in your network[...]

  • Page 22

    Customizing the DSU 3-3 7510-A2-GB20-00 March 1997 Configuring the DSU Configuration option settings determine how the DSU operates. Use the DSU’s Configuration branch to display or change configuration option settings. Configuration Option Areas The DSU is shipped with factory settings in the Default Factory configuration area. Y ou can find def[...]

  • Page 23

    4-1 7510-A2-GB20-00 March 1997 Monitoring the DSU 4 What to Monitor This chapter presents information on how to access and monitor DSU status and performance statistics on the DDS network. Y ou can monitor DSU operations by viewing:  System and T est Status screen  Highest priority Health and Status message on the last line of all screens [...]

  • Page 24

    Monitoring the DSU 4-2 7510-A2-GB20-00 March 1997 V iewing System and T est Status T o view System and T est Status information, follow this menu selection sequence: Main Menu → Status → System and T est Status The System and T est Status screen has three sections:  Health and Status – Displays messages in priority order (highest to lowest[...]

  • Page 25

    Monitoring the DSU 4-3 7510-A2-GB20-00 March 1997 Health and Status The following messages appear in the first column of the System and T est Status screen. The highest priority Health and Status message also appears on all A TI screens on the bottom right. T able 4-2. Health and Status Messages (1 of 2) Message What Message Indicates What T o Do C[...]

  • Page 26

    Monitoring the DSU 4-4 7510-A2-GB20-00 March 1997 T able 4-2. Health and Status Messages (2 of 2) Message What T o Do What Message Indicates Device Fail yyyyyyyy An internal error has been detected by the operating software. yyyyyyyy indicates the 8-digit hexadecimal failure code. 1. Provide the 8-digit failure code shown ( yyyyyyyy ) to your servi[...]

  • Page 27

    Monitoring the DSU 4-5 7510-A2-GB20-00 March 1997 T est Status Messages The T est Status Messages in the following table appear in the rightmost column of the System and T est Status screen. T able 4-4. T est Status Messages T est Status Message Meaning No T est Active Status message, indicating no local, remote, or network test in progress. CSU Lo[...]

  • Page 28

    Monitoring the DSU 4-6 7510-A2-GB20-00 March 1997 V iewing Network Interface Status The network interface status fields are read-only:  Line Rate (Kbps). If the DSU is connected to an operating line and the Line Rate (Kbps) shows Autobaud and does not change to a line rate within about 15 seconds, Line Rate (Kbps) may have to be reconfigured man[...]

  • Page 29

    Monitoring the DSU 4-7 7510-A2-GB20-00 March 1997 V iewing Network Performance Statistics Performance statistics for the network interface are available to:  Monitor the current status of the network operations.  View the DSU’ s performance statistics, which: — Assist you in determining the duration of specific conditions. — Provide a h[...]

  • Page 30

    Monitoring the DSU 4-8 7510-A2-GB20-00 March 1997 Monitoring the LEDs The status of DSU LEDs can be viewed on the Display LEDs Status screen. The 12 LEDs are organized into three groups:  System LEDs display the status of the unit  Network LEDs display the status of the network interface  Port LEDs display the activity on the user data (DT[...]

  • Page 31

    Monitoring the DSU 4-9 7510-A2-GB20-00 March 1997 System LEDs OK: ON – DSU is operational. OFF – DSU is performing a power-up self-test, has detected a system failure, or there is no power . ALARM: ON – DSU has detected an alarm condition locally or from the network. Refer to the T roubleshooting section in Chapter 6. TEST : ON – T est in p[...]

  • Page 32

    Monitoring the DSU 4-10 7510-A2-GB20-00 March 1997 Network LEDs DM – Data Mode: ON – DSU (DDS network interface) is sending or receiving data, or is in DMI condition (all 1s being received). OFF – DDS network interface is receiving CMI codes. OOS – Out of Service: ON – DSU is receiving out of service code from the remote unit. Refer to He[...]

  • Page 33

    Monitoring the DSU 4-1 1 7510-A2-GB20-00 March 1997 Port LEDs TXD – T ransmitted Data: ON – Receiving all 0s from the DTE. OFF – Receiving all 1s from the DTE. Blinking – User data is being transferred. RXD – Received Data: ON – Sending all 0s to the DTE. OFF – Sending all 1s to the DTE. Blinking – User data is being transferred. RT[...]

  • Page 34

    5-1 7510-A2-GB20-00 March 1997 T esting 5 Accessing the T est Menu From the T est menu, you can run network tests, data port tests, and a lamp test for the front panel LEDs. T o access the T est menu, follow this menu selection sequence: Main Menu → T est main/test Device Name: Model: 7510 TEST Network Tests Data Port Tests Lamp Test Abort All Te[...]

  • Page 35

    T esting 5-2 7510-A2-GB20-00 March 1997 Loopbacks can be started from a variety of points in the network, as shown in T able 5-1. T able 5-1. Device Messages Loopback T ype Initiated By Notes Bilateral Loopback  User  Remote unit sending V .54 sequence When enabled, running a DSU loopback also automatically starts a local loopback. Refer to D[...]

  • Page 36

    T esting 5-3 7510-A2-GB20-00 March 1997 Running Network T ests Network tests require the participation of your network service provider . T o access the Network T ests screen, follow this menu selection sequence: Main Menu → T est → Network T ests main/test/network Device Name: Model: 7510 NETWORK TESTS Test Command Status Result CSU Loopback: [...]

  • Page 37

    T esting 5-4 7510-A2-GB20-00 March 1997 CSU or External Network Loopback CSU loopback is an external loopback that is located as closely as possible to the network interface.  Procedur e T o run a CSU loopback: 1. Position the cursor at the Start command next to CSU Loopback on the Network T ests screen. 2. Press Enter . 3. The Start command is [...]

  • Page 38

    T esting 5-5 7510-A2-GB20-00 March 1997 DSU or Internal Network Loopback DSU loopback is an internal loopback that is located as closely as possible to the customer interface serving the DTE. " Procedur e T o run a DSU loopback: 1. Position the cursor at the Start command next to DSU Loopback on the Network T ests screen. 2. Press Enter . 3. T[...]

  • Page 39

    T esting 5-6 7510-A2-GB20-00 March 1997 51 1 T est Pattern for the Network This test sends or monitors the 51 1 test pattern over the network interface.  Procedur e T o run a Send 51 1 test: 1. Position the cursor at the Start command next to Send 51 1 on the Network T ests screen. 2. Press Enter . 3. The Start command is changed to Stop. If you[...]

  • Page 40

    T esting 5-7 7510-A2-GB20-00 March 1997 Running Data Port T ests For an example of the fields on a test menu screen, refer to Running Network T ests . T o access the Data Port T ests screen, follow this menu selection sequence: Main Menu → T est → Data Port T ests main/test/port Device Name: Node A Model: 7510 DATA PORT TESTS Test Command Statu[...]

  • Page 41

    T esting 5-8 7510-A2-GB20-00 March 1997 Local Loopback Local Loopback loops the user data back to the DTE. This loopback is located as closely as possible to the User Data Port (DTE) interface.  Procedur e T o run a local loopback: 1. Position the cursor at the Start command next to Local Loopback on the Data Port T ests screen. 2. Press Enter .[...]

  • Page 42

    T esting 5-9 7510-A2-GB20-00 March 1997  Procedur e T o run a Monitor 51 1 test: 1. Position the cursor at the Start command next to Monitor 51 1 on the Data Port T ests screen. 2. If desired, use Ctrl-a to switch to the screen function key area and use the virtual function key r or R (R esetMon) to clear the error counter to zero. Press Ctrl-a [...]

  • Page 43

    T esting 5-10 7510-A2-GB20-00 March 1997 Ending an Active T est A test initiated by the user can be ended by the user .  A T est Timeout option is available to automatically terminate a user-initiated Loopback or Pattern test after it has been running a specified period of time. Refer to System Options , T able A-1. T est Timeout does not pertai[...]

  • Page 44

    6-1 7510-A2-GB20-00 March 1997 Messages and T r oubleshooting 6 Messages and T roubleshooting There are many messages available to assess the status of the device and contribute to problem resolutions. Refer to the following sections:  Responding to Device Messages  T roubleshooting Responding to Device Messages The Device Messages in T able [...]

  • Page 45

    Messages and T roubleshooting 6-2 7510-A2-GB20-00 March 1997 T able 6-1. Device Messages (2 of 2) Device Message What T o Do What Message Indicates Invalid T est Combination A loopback or 51 1 pattern test was in progress when Start was selected to start another test, or was active on the same or another interface when Start was selected.  W ait[...]

  • Page 46

    Messages and T roubleshooting 6-3 7510-A2-GB20-00 March 1997 T roubleshooting This DSU is designed to provide you with many years of trouble-free service. If a problem occurs, however , refer to T able 6-2 for possible solutions. T able 6-2. T roubleshooting (1 of 2) Symptom Possible Cause Solutions Alarm LED is on. One of several alarm conditions [...]

  • Page 47

    Messages and T roubleshooting 6-4 7510-A2-GB20-00 March 1997 T able 6-2. T roubleshooting (2 of 2) Symptom Solutions Possible Cause Not receiving data; DSU is not responding.  DDS line rate/speed has changed.  Excessive BPVs causing DSU to become stuck in Autobaud mode.  Excessive Loop Loss causing DSU to become stuck in Autobaud mode. 1. [...]

  • Page 48

    A-1 7510-A2-GB20-00 March 1997 Configuration Option T ables A Overview The tables in this appendix summarize the configuration options accessed when you select Configuration on the Main Menu. The configuration options are arranged into groups based upon functionality . Select . . . T o Access the . . . T o Configure the . . . System System Options [...]

  • Page 49

    Configuration Option T ables A-2 7510-A2-GB20-00 March 1997 System Options Menu For System Options, refer to T able A-1. T o access the System Options screen, follow this menu selection sequence: Main Menu → Configuration (Load Configuration From) → Configuration Edit/Display → System T able A-1. System Options (1 of 2) Operating Mode Possibl[...]

  • Page 50

    Configuration Option T ables A-3 7510-A2-GB20-00 March 1997 T able A-1. System Options (2 of 2) LADS Line Rate (Kbps) Possible Settings: 56, 64 Default Setting: 64 Line operating rate for LADS operation.  LADS Line Rate (Kbps) option appears when Operating Mode is set to LADS. 56 – 56 kbps line rate. Provides increased distance for the LADS ap[...]

  • Page 51

    Configuration Option T ables A-4 7510-A2-GB20-00 March 1997 Network Interface Options Menu For Network Interface Options, refer to T able A-2. T o access the Network Interface Options screen, follow this menu selection sequence: Main Menu → Configuration (Load Configuration From) → Configuration Edit/Display → Network T able A-2. Network Inte[...]

  • Page 52

    Configuration Option T ables A-5 7510-A2-GB20-00 March 1997 Data Port Options Menu For Data Port Options, refer to T able A-3. T o access the Data Port Options screen, follow this menu selection sequence: Main Menu → Configuration (Load Configuration From) → Configuration Edit/Display → Data Port T able A-3. Data Port Options (1 of 3) Invert [...]

  • Page 53

    Configuration Option T ables A-6 7510-A2-GB20-00 March 1997 T able A-3. Data Port Options (2 of 3) Carrier Control by RTS Possible Settings: Constant , Switched Default Setting: Constant Simulates Constant or Switched Carrier operation. Constant – The internal RTS is forced on and the DSU is in a constant Data Mode on the transmit line. The exter[...]

  • Page 54

    Configuration Option T ables A-7 7510-A2-GB20-00 March 1997 T able A-3. Data Port Options (3 of 3) Monitor DTR Possible Settings: Enable , Disable Default Setting: Enable Indicates to the DSU whether to monitor the Interchange Circuit CT108, Data T erminal Ready (DTR), from the DTE. Enable – The DSU monitors the state of DTR on the DTE port and d[...]

  • Page 55

    Configuration Option T ables A-8 7510-A2-GB20-00 March 1997 T able A-4. T erminal Port Options (2 of 2) Disconnect Time(minutes) Possible Settings: range 1 – 60 Default Setting: 5 Number of minutes of inactivity before the A TI session terminates automatically . T imeout is based on no keyboard activity .  Disconnect T ime(minutes) option appe[...]

  • Page 56

    B-1 7510-A2-GB20-00 March 1997 W orksheets B Overview The worksheets in this appendix summarize the configuration options accessed when you select Configuration on the Main Menu. The possible menu selections are displayed with the default settings and the possible settings. Configuration W orksheets System Configuration Option Settings Default in [[...]

  • Page 57

    Worksheets B-2 7510-A2-GB20-00 March 1997 Network Interface Configuration Option Settings Default in [ Bold ] Network-initiated DSU Loopback (64K CC) [ Enable ], Disable Data Scrambling (64K CC) Enable, [ Disable ] V .54 Initiated DSU Loopback Enable, [ Disable ] Data Port Configuration Option Settings Default in [ Bold ] Invert T ransmit Clock Ena[...]

  • Page 58

    C-1 7510-A2-GB20-00 March 1997 Cables and Pin Assignments C Overview The following sections provide pin assignments for the:  T erminal Port EIA-232 Connector  V .35 User Data Port Connector  Standard EIA-232-D Crossover Cable  LAN Adapter Converter and Cable  Modular RJ48S DDS Network Interface Cable[...]

  • Page 59

    Cables and Pin Assignments C-2 7510-A2-GB20-00 March 1997 T erminal Port EIA-232 Connector The T erminal port connects to a PC or VT100-compatible terminal. Signal Direction Pin # T ransmit Data ( TXD ) T o DSU ( In ) 2 Received Data ( RXD ) From DSU ( Out ) 3 Request to Send ( RTS ) T o DSU ( In ) 4 Clear to Send ( CTS ) From DSU ( Out ) 5 Data Se[...]

  • Page 60

    Cables and Pin Assignments C-3 7510-A2-GB20-00 March 1997 V .35 User Data Port Connector The following table provides the pin assignments for the 34-position V .35 connector to the User Data terminal equipment. Signal ITU CT# Direction 34-Pin Socket Connector Signal Ground/Common 102 — B Request to Send ( RTS ) 105 T o DSU (In) C Clear to Send ( [...]

  • Page 61

    Cables and Pin Assignments C-4 7510-A2-GB20-00 March 1997 Standard EIA-232-D Cr ossover Cable A standard crossover cable can be used to connect the T erminal port to an external modem. Pin 1 Pin 14 Pin 13 Pin 25 Pin 1 Pin 14 Pin 13 Pin 25 P2 Plug Chassis Ground TXD RXD RTS DSR Signal Ground CD (RLSD) RXC DTR XTXC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15[...]

  • Page 62

    Cables and Pin Assignments C-5 7510-A2-GB20-00 March 1997 LAN Adapter Converter and Cable The following figure shows the:  Pin assignments for the DB25 plug to modular jack converter between the Management port and the 8-conductor LAN Adapter cable and  Pin assignments for the custom 8-conductor cable (with modular plugs on both ends) between[...]

  • Page 63

    D-1 7510-A2-GB20-00 March 1997 T echnical Specifications D T able D-1. Model 7510 DSU T echnical Specifications (1 of 2) Item Specifications Housing Height (including feet) Height (without feet) Width Depth (case) Depth (case and connectors) 2.13 inches (54.1 mm) 1.99 inches (50.6 mm) 9.10 inches (231.2 mm) 6.20 inches (157.5 mm) 6.51 inches (165.3[...]

  • Page 64

    T echnical Specifications D-2 7510-A2-GB20-00 March 1997 T able D-1. Model 7510 DSU T echnical Specifications (2 of 2) Item Specifications Network Interface Data rates LADS data rates Services supported 56 kbps and 64 kbps clear channel (CC) 56 kbps and 64 kbps 4-wire service Network Compatibility ANSI T1.410-1992 and A T&T T echnical Reference[...]

  • Page 65

    GL-1 7510-A2-GB20-00 March 1997 Glossary A single bit stream that combines two or more bit streams. American Standard Code for Information Interchange. A 7-bit code that establishes compatibility between data services. ASCII is the standard for data transmission over telephone lines. Devices that can be attached, either locally or remotely , to dis[...]

  • Page 66

    Glossary GL-2 7510-A2-GB20-00 March 1997 Data Mode Idle. Refers to a sequence of ones transmitted or received on the DDS network. Data Set Ready . An EIA-lead standard for V .24 circuit CT 107; an output signal (DCE-to-DTE). Data Service Unit. Data communications equipment that provides an interface between the DTE and the digital network. Data T e[...]

  • Page 67

    Glossary GL-3 7510-A2-GB20-00 March 1997 A method for interleaving several access channels onto a single circuit for transmission over the network. A connection or switching point on the network. A non-latching loopback can only be initiated or terminated by the 56 kbps network service provider . No Signal. A network-reported condition. Out Of Fram[...]

  • Page 68

    IN-1 7510-A2-GB20-00 March 1997 Index Numbers 51 1 test pattern, 5-6– 5-7 A alarm condition, 4-1 LED, 4-9 ASCII, printable characters, 3-1 AT I Configuration menu, 3-3 Control menu, 3-1, 6-4 exiting, 2-8 initiating, 2-2 menus, 2-2 monitoring, 4-1 Status menu, 4-2, 4-6, 4-7, 4-8 T est menu, 5-1, 5-3, 5-7, 5-9 C cables, rear panel, C-1 communicatio[...]

  • Page 69

    Index IN-2 7510-A2-GB20-00 March 1997 H hardware revision number , 6-4 health and status, messages, 4-3– 4-4 I identity , 6-4 device name, 3-1 interface connections, 1-4 network status, 4-6 K keyboard functions, 2-5 L LADS (Local Area Data Set) example, 1-2 maximum distances, 1-3 Operating Mode setting, A-2 lamp test, 5-9 LAN, adapter and cable, [...]

  • Page 70

    Index IN-3 7510-A2-GB20-00 March 1997 R rear panel, connections, 1-4 reset device, 6-4 revision numbers, 6-4 RJ48S network interface cable, C-5 RTS, request to send LED, 4-1 1 RXD, received data LED, 4-1 1 S safety instructions. See Start-Up Instructions saving option changes, 3-2 screen function keys, 2-6 screen work areas, 2-4 screens, for user i[...]