Black Box SW111A User Manual
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Black Box SW111A User Manual

Black Box SW111A User Manual

Fallback switch/loopback switch
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© Copyright 1999. Black Box Corporation. All rights reserved.
1000 Park Drive
•
Lawrence, PA 15055-1018
•
724-746-5500
•
Fax 724-746-0746

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Summary of Contents for Black Box SW111A

  • Page 1 © Copyright 1999. Black Box Corporation. All rights reserved. 1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746...
  • Page 2 Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX SUPPORT FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 INFORMATION Web site: www.blackbox.com • E-mail: info@blackbox.com...
  • Page 3 FCC INFORMATION FEDERAL COMMUNICATIONS COMMISSION CANADIAN DEPARTMENT OF COMMUNICATIONS RADIO FREQUENCY INTERFERENCE STATEMENTS This equipment generates, uses, and can radiate radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio communication. It has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart J of Part 15 of FCC rules, which are designed to provide reasonable protection against such interference when the equipment is...
  • Page 4 FALLBACK SWITCH AND LOOPBACK SWITCH NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY STATEMENT INSTRUCCIONES DE SEGURIDAD 1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura.
  • Page 5 NOM STATEMENT 12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada. 13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por objetos colocados sobre o contra ellos, poniendo particular atención a los contactos y receptáculos donde salen del aparato.

  • Page 6: Table Of Contents

    FALLBACK SWITCH AND LOOPBACK SWITCH TRADEMARKS All trademarks mentioned in this manual are acknowledged to be the property of the trademark owners. CONTENTS 1. Specifications ..........5 2.

  • Page 7: Specifications

    V.35: (3) M/34 female Leads Supported—1 through 25 Maximum Data Rate—Depends upon cabling Switches—(1) 2-position mode selector Indicators—All models: (1) SD, (1) RD, (1) CD, (1) DTR, (1) RTS; SW111A(E), SW112A(E), SW116A(E): (1) pushbutton for A/B; SW115A(E): (1) pushbutton for Loop/Normal CE Approval—Yes Energy Rate—6 VA...

  • Page 8: Description

    RS-232/V.24, V.35, or RS-530/422 circuits. You can switch via console command, manual pushbutton, or automatically upon alarm. The Loopback Switch (SW112A or SW112AE) is identical to the RS-232 Fallback Switch (SW111A or SW111AE) except that the “B” switch connector has been replaced by an internal loopback plug.

  • Page 9: Connectors

    CHAPTER 2: Description 2.3 Connectors Located on the rear of the Fallback Switch are three user data connectors (“common,” “A,” and “B”) and one 8-pin modular jack for console control. The user data connectors are DB25 female for RS-232 or RS-530, or M/34 female for V.35.

  • Page 10: Smart" Switching

    FALLBACK SWITCH AND LOOPBACK SWITCH • DCD, Data Carrier Detect, high/low • DTR, Data Terminal Ready, high/low The alarming can be used to alert the operator and, optionally, to automatically switch to a backup link (Fallback Switch) or to a loopback or normal condition (Loopback Switch).

  • Page 11: In-Band Switching

    CHAPTER 2: Description 2.8 In-Band Switching The Loopback Switch accepts in-band loop/normal switching commands. Using an over-sampling technique, the async 1200-bps commands are carried over any customer link. The in-band loop command also includes a timer value for an automatic “return to normal.”...

  • Page 12: Installation

    FALLBACK SWITCH AND LOOPBACK SWITCH 3. Installation 3.1 Inspection Check the unit for possible shipping damage. Notify Black Box immediately if the unit is damaged, and save the packing material and shipping container for equipment return. Located on the rear of each unit is a power connector and an 8-pin modular jack.

  • Page 13: Connecting The Ascii Control Terminal

    CHAPTER 3: Installation WARNING: IMPORTANT INFORMATION FOR USERS IN THE UNITED KINGDOM The socket outlet should be installed near the equipment and should be easily accessible. Before connecting ports marked with an “X” as shown in Figure 3-1, seek advice from a competent engineer. Such connections might produce hazardous conditions on the network.
  • Page 14 FALLBACK SWITCH AND LOOPBACK SWITCH DB25 terminal/PC connector to a single Switch. See Figure 3-2. If a PC is being used with a 9-pin connector, a special adapter must be constructed. Call Technical Support at 724-746-5500 for more information on cables and adapters. Modular Adapter 4-Wire Straight-...

  • Page 15: Connecting User Cables

    CHAPTER 3: Installation 3.5 Connecting User Cables Obtain the correct cable for the supported interface. The Switch connectors are female, and the cable connectors should therefore be male. Alarming and monitoring functions are based on the following pin assignments: Signal Name RS-232/V.24 RS-530 V.35...

  • Page 16: Configuration

    FALLBACK SWITCH AND LOOPBACK SWITCH 4. Configuration All Fallback and Loopback Switch parameters are set via DIP-switch SW1 on the main circuit board. You can only change the DIP-switch settings when power is removed from the Fallback Switch or Loopback Switch. 4.1 Switches 1, 2, and 3 Switches 1, 2, and 3 determine the Switch address.

  • Page 17: Switches 5 And 6

    CHAPTER 4: Configuration 4.3 Switches 5 and 6 Switches 5 and 6 determine the “Control” port command-signaling rate. Switch 5 Switch 6 Command Rate 1200 bps 2400 bps 9600 bps (factory default) 19,200 bps 4.4 Switches 7 and 8 Switches 7 and 8 are set at the factory to match the installed interface type and must NOT be changed.

  • Page 18: Console Operation

    FALLBACK SWITCH AND LOOPBACK SWITCH 5. Console Operation Read this section of the user manual while sitting at the management terminal. Follow the manual by examining the “Help” screen for each command and then entering some test commands. 5.1 Terminal Setup Configure the ASCII management terminal as follows: 1.

  • Page 19: Main Command Menu

    CHAPTER 5: Console Operation 5.2 Main Command Menu The Main Menu will appear as soon as power is applied to the Switch. If the terminal was the last item to be powered up, hit ESC to display the Main Menu. You can also use the ESC key to return to the Main Menu from other menus.
  • Page 20 FALLBACK SWITCH AND LOOPBACK SWITCH All configuration-related commands (including switch settings) are stored in battery-backed RAM. The battery is continually being charged during normal operation and will maintain RAM for two months in the absence of power. “E” C OMMAND ASSWORD OGOFF A Switch uses two passwords: Primary and Operational.
  • Page 21 CHAPTER 5: Console Operation Use the “E” command to enter a new password or to log off from the system. To enter a new password, do the following: 1. Type EN <CR> to access the command. 2. Enter the current password, followed by <CR>; this is the one that was used to log onto the system.
  • Page 22 FALLBACK SWITCH AND LOOPBACK SWITCH on either or both the “A” interface and the “B” interface, the Fallback commands include an interface identifier. The Loopback Switch commands are described below. • The command A<CR> displays the alarm status screen. • The command AO<CR> turns on alarm processing (recognition and reporting) for a Loopback Switch unit.
  • Page 23 CHAPTER 5: Console Operation “Chh:mm:ss” is the hours, minutes, and seconds of the “Time to Clear” (the delay timer for Loopback Switch to clear an alarm). “z” is the automatic switching action (if any) that will result from an alarm. The entry can be “NONE”...
  • Page 24 FALLBACK SWITCH AND LOOPBACK SWITCH • The command BMyzz<CR> applies only to Loopback Switch units. It sets the default loopback timer with the yzz operand, where y is D, H, or M for days, hours, or minutes and zz is 1-99 days, 1-24 hours, or 1-60 minutes. OOPBACK WITCH ONSIDERATIONS...
  • Page 25 CHAPTER 5: Console Operation Table 5-2. Standard Loopback Switch loop for RS-530 DCE From Signal Pin(s)* Signal Pin(s)* 3 and 16 2 and 14 6 and 22 20 and 23 8 and 10 4 and 19 17 and 9 24 and 11 *Referenced to RS-530 DB25 connector.
  • Page 26 FALLBACK SWITCH AND LOOPBACK SWITCH • The command DH(escape)<space>(hangup)<CR> will change (store) an escape sequence and a hang-up sequence. A common sequence to hang up a modem is: <one second of silence>+++<one second of silence>ATH<CR> This would be entered as DH+++<space>ATH\M<CR> “F”...
  • Page 27 CHAPTER 5: Console Operation • ON<CR> turns echo ON. Factory default. NOTE If DIP-switch-position #4 is “ON,” the echo will not function. • OF<CR> turns echo OFF. “R” C (MM/DD/YY HH:MM:SS) OMMAND EAD OR SET LOCK • The R<CR> command with no modifiers will display the current date and time. When the R command is followed by date and time (24-hour clock), this becomes the new date and time and is sent to all online units in the system.

This manual is also suitable for:

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