Black Box TL553A-R3 Manual
  1. Manuals
  2. Brands
  3. Black Box Manuals
  4. Network Hardware
  5. TL553A-R3
  6. Manual

Black Box TL553A-R3 Manual

Rs-232 data sharers
Hide thumbs Also See for TL553A-R3:
Table of Contents

Advertisement

Quick Links

Download this manual
RS-232 Data Sharers
CUSTOMER
Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX
FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
SUPPORT
Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
INFORMATION
Web site: www.blackbox.com • E-mail: info@blackbox.com
T E R
M A S
C D
C T S
P W R
R P O R T
M A S T E
R X D
C D
C T S
P W R
2 D A T
R S - 2 3
R T S S
A
B L E D
P O R T
D I S A
R T S
L E D
E N A B
R X D
R T S
T U S
R T S S T A
E
D
C
B
A
JULY 2000
TL553A-R3
TL553AE-R3
TL554A-R3
TL554AE-R3
TL601A-R2
TL601AE-R2
2
R E R -
A S H A
S
T A T U
B
A R E R - 8
D A T A S H
R S - 2 3 2
R T S D IS
H
G
F
R T S E N
A B L E D
A B L E D

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the TL553A-R3 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Black Box TL553A-R3

Summary of Contents for Black Box TL553A-R3

  • Page 1 Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 SUPPORT Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 INFORMATION Web site: www.blackbox.com • E-mail: info@blackbox.com...
  • Page 2 FCC AND IC STATEMENTS FEDERAL COMMUNICATIONS COMMISSION INDUSTRY CANADA 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...
  • Page 3 RS-232 DATA SHARERS 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 4 NOM STATEMENT 11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del tipo descrito en el instructivo de operación, o como se indique en el aparato. 12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada.
  • Page 5 RS-232 DATA SHARERS TRADEMARKS USED IN THIS MANUAL IBM is a registered trademark of International Business Machines Corporation. Molex is a registered trademark of Molex Incorporated. Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark owners.

  • Page 6: Table Of Contents

    TABLE OF CONTENTS Contents Chapter Page 1. Specifications ..................... 6 2. Introduction ....................8 2.1 Typical Synchronous Application ............9 2.2 Typical Asynchronous Application ..........11 3. The Front Panel ..................11 3.1 The LEDs ................... 11 3.2 The RTS Toggle Switches ..............11 4.

  • Page 7: Specifications

    RS-232 Data Sharer–8: (9) DB25 female data ports Pins Supported ......DB25 pins 1 through 10, 15, 17, 20, 22 Power ..........Data Sharers TL553A-R3, TL554A-R3, and TL601A-R2: From wallmount power supply PS154: Input: 115 VAC, 60 Hz at 100 mA; Output: 17 VAC CT at 700 mA;...
  • Page 8 CHAPTER 1: Specifications Mean Time Between Failures (ground-benign environment) ..RS-232 Data Sharer–2: 180,000 hours; RS-232 Data Sharer–4: 95,000 hours; RS-232 Data Sharer–8: 65,000 hours Enclosure ........Steel Size..........RS-232 Data Sharer–2: 2.5"H x 8.1"W x 11.3"D (6.4 x 20.6 x 28.7 cm); RS-232 Data Sharer–4, RS-232 Data Sharer–8: 2.9"H x 12.5"W x 11.1"D...

  • Page 9: Introduction

    The RS-232 Data Sharer is available in three models: • TL601A-R2 and TL601AE-R2 (RS-232 Data Sharer 2-Port) • TL553A-R3 and TL553AE-R3 (RS-232 Data Sharer 4-Port) • TL554A-R3 and TL554AE-R3 (RS-232 Data Sharer 8-Port) Each of the RS-232 Data Sharers supports the following features: •...

  • Page 10: Typical Synchronous Application

    CHAPTER 2: Introduction 2.1 Typical Synchronous Application In this kind of application, the devices sharing the line (the “slave devices”) are usually controllers at a remote site. The shared line runs from the RS-232 Data Sharer to a modem (the “master device”) that is ultimately linked to a host computer.

  • Page 11: Typical Asynchronous Application

    RS-232 DATA SHARERS 2.2 Typical Asynchronous Application In this kind of application, the devices sharing the line (the “slave devices”) are usually local intelligent terminals or PCs. The shared line runs from the RS-232 Data Sharer directly to a controller, processor, or host (the “master” device).

  • Page 12: The Front Panel

    CHAPTER 3: The Front Panel 3. The Front Panel All models of the RS-232 Data Sharer have similar front panels. The only difference is the number of RTS LEDs and toggle switches (depending on the model, there are two, four, or eight RTS indicators and a matching number of switches).

  • Page 13: Jumper-Selectable Options

    RS-232 DATA SHARERS 4. Jumper-Selectable Options Refer to Figure 4-1, below, for an overhead view of the internal circuit board of the RS-232 Data Sharer-2 model. Refer to Figure 4-2 on the next page if you have a RS-232 Data Sharer-4 or RS-232 Data Sharer-8. RTS DELAY A—B 0 msec...

  • Page 14: Jumper W1-Tying Signal Ground To Frame Ground

    CHAPTER 4: Jumper-Selectable Options 4.1 Jumper W1—Tying Signal Ground to Frame Ground Using jumper W1, you can tie signal ground to frame ground. The position is left open at the factory. If signal ground is to be connected to frame ground, we recommend that you solder a 100-ohm, 0.5-watt resistor in location W1.

  • Page 15: Jumper W2-Rts Delay

    RS-232 DATA SHARERS 4.2 Jumper W2—RTS Delay You can set jumper W2 for the amount of time you want the RTS signal to delay as it passes through the RS-232 Data Sharer from a slave port to the master port. Settings W2 in A–B position = 0-ms delay (no delay, factory-default setting).

  • Page 16: Jumper W4-Priority Selection (4- And 8-Port Models Only)

    CHAPTER 4: Jumper-Selectable Options 4.4 Jumper W4—Priority Selection (4- and 8-Port Models Only) Jumper W4 determines whether the slave ports will (a) be polled for RTS sequentially or (b) prioritized with Port A given the highest priority and Port D or H given the lowest priority. Settings W4 in A–B position = Sequential (round-robin) polling (factory-default setting).
  • Page 17 RS-232 DATA SHARERS Each of these jumpers determines how long the RS-232 Data Sharer will wait before cutting off access to the slave on the corresponding port if that slave keeps asserting RTS after data activity stops: Settings Timeout-period jumper in A position = 32 seconds. Timeout-period jumper in B position = 10 seconds.
  • Page 18 CHAPTER 4: Jumper-Selectable Options These jumpers determine whether the Sharer monitors only the TXD (Transmit Data) signal or both the TXD and RXD (Receive Data) signals to decide when to start or reset the timeout timer: Settings Timeout-signal jumper in A-B position = TXD only. The Sharer will start the timeout timer when the slave on the corresponding port either a) is granted access and does not transmit anything but continues to assert RTS, or b) keeps asserting RTS after it stops transmitting data.

  • Page 19: Installation

    RS-232 DATA SHARERS 5. Installation 1. Set all of the RS-232 Data Sharer’s jumpers to suit your application: Jumper W2 in A–B position = 0 ms RTS delay* Jumper W2 in B–C position = 25 ms RTS delay Jumper W3 in A–B position = RXD Broadcast Mode* Jumper W3 in B–C position = RXD Gated Mode Timeout-period jumpers: 2-port units: W4 and W5;...
  • Page 20 CHAPTER 5: Installation 2. Connect the devices that you want to share the line to the slave ports (“Port A,” “Port B,” etc.) on the rear of the RS-232 Data Sharer. The slave ports are configured as DCE, normally requiring straight-through cabling to your DTE devices.

  • Page 21: Operation (Port Selection)

    RS-232 DATA SHARERS 6. Operation (Port Selection) Port selection is initiated by the presence of a Request to Send (RTS) signal on any slave port: 1. Any number of terminals can raise their RTS signals, and the corresponding LEDs on the front panel of the RS-232 Data Sharer will light.
  • Page 22 CHAPTER 6: Operation (Port Selection) the Sharer will end that slave’s session and select a new active port. When the Sharer times out a slave, it continues to monitor that slave’s RTS signal. It will deny that slave any further line access (that is, it will ignore that slave’s port each time it chooses a new active port) until the slave’s RTS goes low and then high again (a good sign that the slave device has been reset, fixed, or replaced).

  • Page 23: Troubleshooting

    • If you are shipping the Sharer for repair, include its power supply. If you are returning the Sharer, make sure you include everything you received with the unit. Before you ship, contact Black Box to get a Return Materials Authorization (RMA) number.

  • Page 24: Appendix: Pin Descriptions

    APPENDIX: Pin Descriptions Appendix: Pin Descriptions DIRECTION NAME MASTER PORT SLAVE PORT FUNCTION (DTE) (DCE) Frame Gnd —— —— Hardwired; connected to all ports. Output Input Only enabled slave device transmits to the master (signal is gated). Input Output Master broadcasts to all slaves unless Gated Mode is selected.
  • Page 25 © Copyright 2000. Black Box Corporation. All rights reserved. 1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746...

This manual is also suitable for:

Tl553ae-r3Tl554a-r3Tl554ae-r3Tl601a-r2Tl601ae-r2

Table of Contents