WTI PLS-345 User Manual
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WTI PLS-345 User Manual

Physical layer switch
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WTI Part No. 13236
Rev. A
PLS-345
Physical Layer Switch
User's Guide

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Summary of Contents for WTI PLS-345

  • Page 1 WTI Part No. 13236 Rev. A PLS-345 Physical Layer Switch User's Guide...

  • Page 3: Warnings And Cautions

    Warnings and Cautions: No Serviceable Parts Inside; Authorized Service Personnel Only Do not attempt to repair or service this device yourself. Internal components must be serviced by authorized personnel only. • Shock Hazard - Do Not Enter Nameplate Power Warning This device should only be operated with the type of power source indicated on the instrument nameplate.
  • Page 4 PLS-345 - Physical Layer Switch; User's Guide Rack Mount Installation (Continued) 1. Enclosed Racks (Continued): The ambient within the rack may be greater than room ambient. Installation should be such that the amount of air flow required for safe operation is not compromised. The maximum temperature for the equipment in this environment is 45°C.

  • Page 5: Table Of Contents

    System Mode and User Mode ......5-1 5.2. Communicating with the PLS-345 ......5-2 5.3.
  • Page 6 PLS-345 - Physical Layer Switch; User's Guide 9. Application Examples ....... . . 9-1 9.1.

  • Page 7: Introduction

    Easy to Configure, Easy to Use The PLS-345 can be configured over the network, via modem, or from a local PC or terminal connected to the unit's Console Port. Easy to use commands let you assign a location name, set system parameters, and view circuit status.
  • Page 8 PLS-345 - Physical Layer Switch; User's Guide Applications · Controlled A/B Switching of Cat5 Connections. · A/B Routing of 10/100Base-T Ethernet, ISDN, DSL, Telco, or RS-232 Lines. · Remote Switching to "Out-of-Service" or "Off-Line" Conditions. · Switch to Backup Firewall or VPN.

  • Page 9: Unit Description

    Unit Description 2.1. Front Panel As shown in Figure 2.1, the PLS-345 Front Panel includes the following components: Figure 2.1: Front Panel À Circuit 1: Status indicator lights and manual controls for Circuit 1. Includes the following: A) Line "A" Selector Button and Status LED: Press the "A"...

  • Page 10: Back Panel

    PLS-345 - Physical Layer Switch; User's Guide Ä RDY: Flashes when the PLS-345 is ready to receive commands. Å RXD: Flashes when the PLS-345 receives commands. Æ Master A/B Switch: Used to manually switch all three circuits. When the "A" or "B" button is pressed, all three circuits will be switched to the corresponding "A"...
  • Page 11 For connection to a Local PC. Æ Monitor Selector Switch: A slide switch that is used to set the PLS-345 to monitor either an RS-232 line or a contact. When properly configured, the PLS-345 can perform A/B switching based on the signal level at either an RS-232 Line or a contact connected to the Monitor Input Connector.
  • Page 12 PLS-345 - Physical Layer Switch; User's Guide...

  • Page 13: Quick Start / System Overview

    Quick Start / System Overview This section provides a brief overview of basic PLS capabilities, and describes a simple test that can be performed to verify that you are able to communicate with the unit. The Quick Start procedure is included primarily to provide a quick demonstration of PLS capabilities.
  • Page 14 PLS-345 - Physical Layer Switch; User's Guide 3. Access the Command Mode: In order to invoke commands and display status screens, you must first access the PLS command mode via Network, modem, or Console Port (local PC.) For more information, on command mode access, please refer to Section 5.2.
  • Page 15 Physical Layer Switch v1.00 CKT# | From -----+------------------+------------------+-----+-----+---------| | PORT_11111111111 | PORT_BBBBBBBBBBB | | PORT_22222222222 | PORT_AAAAAAAAAAA | | PORT_33333333333 | PORT_AAAAAAAAAAA | -----+------------------+------------------+-----+-----+---------| Command Echo: Inactivity Timeout: Command Confirmation: Automated Mode: Monitor Mode: Monitor Input Level: "/H" for help. PLS>...

  • Page 16: The Command Help Screen (System Mode)

    PLS-345 - Physical Layer Switch; User's Guide Physical Layer Switch v1.00 Display Display Help Screen Display Circuit Status Display Network Status Configuration View/Set General Parameters /P [n] View/Set Circuit Parameters View/Set Network Parameters View/Set Monitor Parameters Download Configuration to File Control /A <n>...

  • Page 17: Installation

    4.2. Initialization If you are reinstalling a PLS-345 unit that has been previously installed, or if you wish to ensure that the PLS-345 is starting out with all parameters set in the default status, the PLS can be initialized to default values as described below.

  • Page 18: Connecting Common And A/B Lines

    PLS-345 - Physical Layer Switch; User's Guide 4.3. Connecting Common and A/B Lines Connect your Cat5 cables to the appropriate A, B, and common line connectors on the PLS back panel. For a description of port interfaces, please refer to Appendix A.

  • Page 19: Setup And Configuration

    User Mode is active, you are not allowed to access the configuration menus or reset the PLS Network Port. When the System Password has been defined, the PLS-345 will display a password prompt whenever the unit is contacted via the Console Port, Modem Port, or Network Port.

  • Page 20: Communicating With The Pls-345

    5.2. Communicating with the PLS-345 In order to configure the unit or invoke command functions, you must first connect to the PLS-345 and access the command mode. 1. Start your communications program (e.g. Hyperterminal.) Make certain that the PLS and your communications program are set for the same parameters (e.g.
  • Page 21 Physical Layer Switch v1.00 CKT# | From -----+------------------+------------------+-----+-----+---------| | PORT_1 | PORT_2 | PORT_3 -----+------------------+------------------+-----+-----+---------| Command Echo: Inactivity Timeout: Command Confirmation: Automated Mode: Monitor Mode: Monitor Input Level: "/H" for help. PLS> Figure 5.1: The Circuit Status Screen c) Network Access: The PLS includes a default IP address (192.168.168.168), which allows you to contact the unit from any network node on the same subnet.

  • Page 22: Pls Command/Menu Conventions

    PLS-345 - Physical Layer Switch; User's Guide 5.3. PLS Command/Menu Conventions When invoking PLS commands or selecting items from configuration menus, note the following: · All PLS commands can be invoked at the PLS> command prompt, or from the General Parameters Menu, Circuit Parameters Menus, Monitor Parameters Menu, or Network Parameters Menu.

  • Page 23: Defining General Parameters

    GENERAL PARAMETERS: System Password: User Password: Site ID: Modem Init. String: Modem Disc. String: Baud Rate: Command Echo: Inactivity Timeout: Command Confirmation: On 10. Automated Mode: Default Parameters Enter Selection or <ESC> to Exit ... Figure 5.2: The General Parameters Menu 5.4.
  • Page 24 PLS-345 - Physical Layer Switch; User's Guide 2. User Password: The User Password allows access to A/B switching commands and status screens, but does not allow access to the PLS configuration menus. To define the User Password, type 2, press [Enter] and follow the instructions in the submenu.
  • Page 25 7. Command Echo: Enables/disables command echo. When enabled, commands sent to the PLS will be echoed back to your PC, allowing keystrokes to be displayed. To enable or disable the command echo, type 7, press [Enter], and follow the instructions in the submenu. (Default = Off.) 8.

  • Page 26: Circuit Parameters

    PLS-345 - Physical Layer Switch; User's Guide CIRCUIT #1 PARAMETERS: 1. Common Name (From): PORT_11111111111 2. "A" Name (To): 3. "B" Name (To): 4. Default Position: Enter Selection or <ESC> to Exit ... Figure 5.3: The Circuit Parameters Menu 5.5. Circuit Parameters...

  • Page 27: Network Parameters

    3. "B" Name (To): Assigns a name to the "B" line for this A/B circuit. When a name is assigned to the "B" line, and the circuit is in the "B" position, this name will appear in the "To" column on the PLS Circuit Status Screen. To assign a name to the "B"...

  • Page 28: The Network Parameters Menu

    PLS-345 - Physical Layer Switch; User's Guide NETWORK PARAMETERS: 1. IP Address: 2. Subnet Mask: 3. Gateway Address: 4. IP Security MAC Address: Enter Selection or <ESC> to Exit ... Figure 5.4: The Network Parameters Menu Note: Although new network port parameters can...

  • Page 29: Implementing Ip Security

    Figure 5.5: The IP Security Menu 5.6.1. Implementing IP Security The PLS-345 can be configured to restrict unauthorized IP addresses from Telneting to the unit. This allows the user to grant Telnet access only to a specific group of IP Addresses, or block a particular IP address from gaining access.
  • Page 30 PLS-345 - Physical Layer Switch; User's Guide Example 1: Deny access to all hosts except 192.1.1.5: Security Mask #1: 255.255.255.255 Security Mask #2: 192.1.1.5 Since 255 is a wild card, Mask #1 blocks all IP Addresses. Mask #2 then specifically grants access to 192.1.1.5 only.

  • Page 31: The Monitor Mode

    5.7. The Monitor Mode The Monitor Mode allows the PLS-345 perform automatic A/B switching in response to signal changes at the monitor port on the instrument back panel. The Monitor Mode can be set to monitor a Contact or an RS-232 Line.

  • Page 32: The Monitor Mode Parameters Menu

    PLS-345 - Physical Layer Switch; User's Guide MONITOR PARAMETERS: 1. Monitor Mode: 2. Switch If Level: 3. Switch to Position: B 4. Delay Period: 5. Return: 6. Circuits to Switch: 2, 3 Enter Selection or <ESC> to Exit ... Figure 5.6: The Monitor Mode Parameters Menu 1.
  • Page 33 5. Return: When enabled, the Monitor Mode will return the switched A/B circuit(s) to the original A/B position if the monitored signal also returns to its normal state. (Default = Off.) For example, assume the Monitor Mode is configured as follows: ·...

  • Page 34: Save Configuration Parameters

    PLS-345 - Physical Layer Switch; User's Guide 5.8. Save Configuration Parameters After the unit has been completely configured, it is recommended to save parameters to an ASCII file as described in Section 8. This allows quick recovery in the event that the unit is reset to default parameters, or if the configuration is accidentally deleted or altered.

  • Page 35: The Status Screens

    Network Status Screen (/SN). 6.1. The Circuit Status Screen The Circuit Status Screen lists the current A/B settings for the PLS-345's three switched circuits, and also summarizes user- selected parameters, such as Command Echo, Inactivity Timeout, and Command Confirmation. As shown in Figure 6.1, the Circuit Status Screen lists the following items: 1.
  • Page 36 PLS-345 - Physical Layer Switch; User's Guide 3. From: The user-defined name for the Common Line (C) for each of the three A/B circuits. Note that if the Common Line name has not been defined, this field will remain empty.

  • Page 37: The Network Status Screen

    PC or terminal that has contacted the PLS via network. b) State: The current status of the TCB connection. c) Source IP Address: The IP Address of the network node that has currently accessed the PLS-345 Command Mode. 4. Port: a) TCB: Transmission Control Block (Always 1.)
  • Page 38 PLS-345 - Physical Layer Switch; User's Guide...

  • Page 39: Operation

    Operation The PLS-345 offers three different methods for switching A/B paths: 1. Manual A/B Switching: The manual A/B Switches on the PLS front panel are used to initiate switching of one or more A/B Circuits. 2. Code Activated A/B Switching: ASCII commands are sent to the PLS to initiate switching of one or more A/B Circuits.

  • Page 40: Code Activated A/B Switching

    PLS-345 - Physical Layer Switch; User's Guide 7.2. Code Activated A/B Switching The PLS offers three different commands for controlling A/B switching: · The /A command, which is used to switch one or more circuits to the "A" line. ·...

  • Page 41: The /D Command

    Enable the Automated Mode as described in Section 5.4. 7.2.2. The /D Command The /D command can be used to switch all three PLS-345 circuits to their user-defined default A/B positions. Default A/B positions are defined via the Circuit Parameters Menus (/P n.)

  • Page 42: The Monitor Mode

    PLS-345 - Physical Layer Switch; User's Guide 7.3. The Monitor Mode The Monitor Mode allows the PLS-345 perform automatic A/B switching in response to signal level changes at the monitor port on the instrument back panel. The Monitor Mode can be set to monitor a Contact or an RS-232 Line.

  • Page 43: Saving And Restoring Configuration Parameters

    Saving and Restoring Configuration Parameters After the PLS has been properly configured, parameters can be downloaded and saved as an ASCII text file. Later, if the configuration is accidentally altered, the file with the saved parameters can be uploaded to automatically reconfigure the unit without the need to manually assign each parameter.

  • Page 44: Restoring Saved Parameters

    PLS-345 - Physical Layer Switch; User's Guide 4. The PLS will send a series of ASCII command lines which specify the currently selected PLS parameters. The last line of the file should end with a “/G-00” command. When the download is complete, press [Enter] to return to the "PLS>"...

  • Page 45: Application Examples

    9.1. Monitoring Signal Drop and/or Power Loss In this application, the PLS-345 will monitor the DTR signal from a data device. If the signal drops or the data device loses power for more than one minute, the unit will automatically switch circuits 2 and 3 to the "B"...

  • Page 46: Aux Port Connection

    PLS-345 - Physical Layer Switch; User's Guide Figure 9.2: AUX Port Connection 3. Configure Monitor Mode: Access the PLS command mode as described in Section 5.2. At the PLS> command prompt, type /M [Enter] to display the Monitor Mode Parameters Menu. Note that the Monitor Mode Parameters Menu is not available in User Mode.

  • Page 47: Monitoring A Contact

    Figure 9.3: Monitoring a Switch or Relay 9.2. Monitoring a Contact In this application, the PLS will monitor a switch or contact. When the contact closes (signal goes low) for more than one minute, the PLS will automatically switch module 1 to the "B" position.

  • Page 48: Aux Port Connection

    PLS-345 - Physical Layer Switch; User's Guide Figure 9.4: AUX Port Connection 3. Configure Monitor Mode: Access the PLS command mode as described in Section 5.2. At the PLS> command prompt, type /M [Enter] to display the Monitor Mode Parameters Menu. Note that the Monitor Mode Parameters Menu is not available in User Mode.

  • Page 49: Command Summary

    10. Command Summary All PLS-345 commands conform to the following standards: · All commands normally begin with the "/" (foreword slash) character. If you wish to temporarily suppress command echo, use the "\" (backward slash) character instead of a forward slash.

  • Page 50: Configuration Commands

    Command Availability: System and User. 10.2. Configuration Commands These commands are used to access the configuration menus, which are used to select operating parameters for the PLS-345. View/Set General Parameters Displays the General Parameters Menu (Figure 5.2), which is used to define parameters such as the System and User Passwords, Site ID, Modem command strings, and other features.
  • Page 51 ASCII file on your PC. This allows you to either "back-up" parameters as a safety measure, or download the parameters to another PLS-345 if several units will be configured with the same parameters. For more information on saving configuration parameters, please refer to Section 8.

  • Page 52: Control Commands

    PLS-345 - Physical Layer Switch; User's Guide 10.3. Control Commands These commands are used to switch A/B lines at each circuit, set circuits to default status, and reset the network interface. /A <n> Switch Circuit "n" to Line "A" Switches the target circuit(s) to Line "A". Note that this command can be used to switch one circuit, a combination of circuits or all circuits to the "A"...
  • Page 53 Set Circuits to Default Switches all PLS-345 circuits to their default A/B state. Note that the default A/B state is set using the Circuit Parameters Menu, as described in Section 7.2.2. Command Format: /D [Enter] Command Arguments: Suppress Confirmation (Sure) Prompt. For example, "/D,y"...
  • Page 54 PLS-345 - Physical Layer Switch; User's Guide Exit/Disconnect Exits from command mode. When you have contacted the PLS via network, the unit will exit command mode and the network connection will be terminated. When you have contacted the PLS via modem, the unit will exit command mode and the modem will hang up.

  • Page 55: Interface Descriptions

    A. Interface Descriptions A.1 Console Port Interface Figure A.1: Console Port Interface A.2 Modem Port Interface Figure A.2: Modem Port Interface Apx-1...

  • Page 56: Common Ports And A/B Ports

    PLS-345 - Physical Layer Switch; User's Guide A.3 Common Ports and A/B Ports Figure A.3: Common Ports and A/B Ports Apx-2...

  • Page 57: B. Specifications

    Specifications Interface: RJ-45, three jacks, Cat5 compliant, capable of switching 10/100Base-T with minimum dB loss, 8 pins switched, Common Jack to "A" or "B" Jack. Contacts: High reliability, mechanical relays, break-before- make contacts with 1 amp @ 30 VDC rating, 100 million cycle life.

  • Page 58: Customer Service

    Toll Free Customer Service Line: 1-888-280-7227 Customer Service Fax: (949) 457-8138 E-mail: service@wti.com Trademark and Copyright Information WTI and Western Telematic are trademarks of Western Telematic Inc.. All other product names mentioned in this publication are trademarks or registered trademarks of their respective companies.
  • Page 59 Index 100BaseT Networks A Name (To) A/B Lines A/B Settings A/B Switching Code Activated Manual Monitor Mode A/C/B Circuits A/C/B Indicators Application Examples Automated Mode Automatic A/B Switching 5-13 to 5-15 B Name (To) Back Panel Baud Rate Circuit Default Circuit Indicators Circuit Name Circuit Number...
  • Page 60 PLS-345 - Physical Layer Switch; User's Guide MAC Address Manual A/B Switching Manual Switch Master A/B Switch Menu Conventions Modem Access Modem Port 2-3, 4-2, 5-2, Apx-1 Disconnect String Initialization String Monitor Input Monitor Input Connector Monitor Mode 2-3, 5-13 to 5-15,...
  • Page 62 · · 5 Sterling Irvine California 92618 · (949) 586-9950 Toll Free: 1-800-854-7226 · Fax: (949) 583-9514 http://www.wti.com...

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