Black Box ME930C-RJ11 Manual
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Black Box ME930C-RJ11 Manual

Black Box ME930C-RJ11 Manual

Sync mp line driver card
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Sync MP Line Driver Card
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
FEBRUARY 1999
ME930C-RJ11
P o w e r
T D
R D
C n t r l
I n
C n t r l
O u t
T e s t

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Summary of Contents for Black Box ME930C-RJ11

  • 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/IC STATEMENTS AND DECLARATION OF CONFORMITY 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.
  • Page 3 SYNC MP LINE DRIVER CARD DISCLAIMER Under no condition shall the manufacturer be liable for any damages incurred by the use of this product. These damages include, but are not limited to, the following: lost profits, lost savings, and incidental or consequential damages arising from the use of or inability to use this product.

  • Page 4: Table Of Contents

    5.3.1 Local Analog Loopback ............19 5.3.2 Remote Analog Loopback ............20 6. Troubleshooting ..................21 6.1 Calling Black Box ................21 6.2 Shipping and Packaging ..............21 Appendix A: Cable Recommendations ............22 Appendix B: Block Diagram ................23...

  • Page 5: Specifications

    SYNC MP LINE DRIVER CARD 1. Specifications Compliance — FCC Part 15 Subpart J Class A, IC Class/classe A Interfaces — Local: EIA/TIA RS-232C/ITU-T V.24, V.28; Line: Proprietary balanced 4-wire (see Line Type below) Protocol — Synchronous Clock Source — Internal or external (from DTE), user-selectable;...
  • Page 6 CHAPTER 1: Specifications Indicators (continued) — (10) Front-mounted LEDs (continued): (2) RD: (1) for positive-state activity (green), (1) for negative-state activity (red); (2) Cntrl In: (1) for RTS from local device ON (green); (1) for RTS from local device OFF (red); (2) Cntrl Out: (1) for carrier and Carrier Detect ON (green);...

  • Page 7: Introduction

    • Carrier can be constantly ON or controlled by RTS 2.2 Overview The Sync MP Line Driver Card (our product code ME930C-RJ11) operates in full duplex over four-wire cable (two unconditioned twisted pairs). The Card supports data rates up to 19.2 Kbps and has a maximum range of 10 miles (at 1200 bps over 19-AWG wire).

  • Page 8: Configuration

    CHAPTER 3: Configuration 3. Configuration This chapter describes the location and orientation of the Sync MP Line Driver Card’s configuration switch, provides detailed instructions for setting each switch position, and describes jumper settings for the rear half-card. As shown in Figure 3-1 below, the Card’s “function” front half has an eight- position DIP switch labeled “SW1”...

  • Page 9: The Orientation And Default Settings Of The Dip Switch

    SYNC MP LINE DRIVER CARD 3.1 The Orientation and Default Settings of the DIP Switch The eight-position DIP switch on the Sync MP Line Driver Card allows you to specify the Card’s data rate, clocking method, RTS/CTS delay, and carrier-control method.

  • Page 10: Detailed Switch Settings

    Pin 17 on the Card to Pin 17 on the DTE (which must be set for receive clock) but must also loop Pin 17 on the Card back to Pin 24 (the external clock lead) on the Card. If you want such a cable, please call Black Box for technical support.

  • Page 11: Configuring The Rear Half-Card

    SYNC MP LINE DRIVER CARD 4. RTS/CTS Delay (Positions 6 and 7) Switch positions 6 and 7 are used together to specify RTS/CTS delay. After request to send (RTS) is raised by the host terminal, the Card raises CTS after a slight delay in order to give the remote terminal time to receive an incoming signal.
  • Page 12 CHAPTER 3: Configuration Prior to installation, you will need to examine this half-card and be sure its jumpers are configured properly for your application. Figure 3-4 below shows where the jumpers are. These jumpers determine various grounding characteristics for the RS-232 and twisted-pair lines. (peg 1 on left) (peg 1 on left) (peg 1 on left)
  • Page 13 SYNC MP LINE DRIVER CARD Table 3-2 below summarizes the factory-default settings of the jumpers. Following this overview is a detailed description of each strap’s function. Table 3-2. The factory-default settings of jumpers JB2, JB3, and JB4. Jumper Function Factory-Default Setting Line Shield and Jumper on positions 2 &...

  • Page 14: Installation

    CHAPTER 4: Installation 4. Installation This chapter describes the functions of the MicroRACK system, tells how to install the front and rear half-cards of the Sync MP Line Driver Card in its chassis, and provides diagrams for wiring the interface connections correctly. 4.1 The MicroRACK Chassis The 16-Port MicroRACK chassis (our product code RM216), shown in Figure 4-1 below, has slots for sixteen short-range modem cards, as well as its own power...

  • Page 15: The Microrack's Power Supply

    SYNC MP LINE DRIVER CARD 4.2 The MicroRACK’s Power Supply The power supply preinstalled in the MicroRACK uses the same mid-plane architecture as the modem cards. The front half-card of the power supply slides in from the front, and the rear half-card slides in from the rear. They plug into one another in the middle of the rack.

  • Page 16: Connecting Cables To The Card

    CHAPTER 4: Installation 4.4 Connecting Cables to the Card As mentioned earlier, the rear “connector” half-card of the Sync MP Line Driver Card has one RS-232 port (a DB25 female connector) for local connections and one 4-wire twisted-pair port (a six-wire RJ-11 female) for connections between line drivers.

  • Page 17: Making The Twisted-Pair Connection

    SYNC MP LINE DRIVER CARD 4.4.2 M AKING THE WISTED ONNECTION The Sync MP Line Driver Card operates full duplex over two twisted pairs. In all applications, the twisted-pair wire must be 26 AWG or thicker, unconditioned, dry metallic wire. (See Appendix A for a table of wire grades, distances, and data rates.) CAUTION! The Card can only communicate in a closed data circuit with another Sync MP Line Driver Card.

  • Page 18: B Multipoint Twisted-Pair Connections

    Refer to Appendix A for general guidelines; for help determining the distance you can run in your particular application, call Black Box Technical Support. Figure 4-4 below shows how to properly wire the Cards’ two-pair cabling for a multipoint star topology.

  • Page 19: Operation

    SYNC MP LINE DRIVER CARD 5. Operation Once you have configured each Sync MP Line Driver Card and connected the cables to them, you are ready to operate them. This chapter describes the Card’s LED status monitors, the power-up procedure, and the use of the Card’s built-in loopback test modes.

  • Page 20: Power-Up

    CHAPTER 5: Operation simultaneously light its green Cntrl In LED. The remote Card senses the low impedance on the transmit lines, raises CD (the signal that goes out to the remote DTE on the Card’s DB25 Pin 8), and lights its green Cntrl Out LED. When the remote DTE senses that CD is ON, it will begin transmitting.

  • Page 21: Remote Analog Loopback

    SYNC MP LINE DRIVER CARD 5.3.1 L OCAL NALOG OOPBACK When you press “Test” on the local Card, local analog loopback causes any data sent to the local Card by the local RS-232 device to be echoed back to that RS-232 device.

  • Page 22: Troubleshooting

    If you need to transport or ship your Sync MP Line Driver Card: • Package it carefully. We recommend that you use the original container. • Before you ship the unit back to Black Box for repair or return, contact us to get a Return Authorization (RA) number.

  • Page 23: Appendix A: Cable Recommendations

    SYNC MP LINE DRIVER CARD Appendix A: Cable Recommendations The Sync MP Line Driver Card operates at frequencies of 20 kHz or less and has been performance-tested using twisted-pair cable with the following characteristics: Wire Gauge Capacitance Resistance 19 AWG 83 nF/mi or 15.7 pF/ft.

  • Page 24: Appendix B: Block Diagram

    APPENDIX B: Block Diagram Appendix B: Block Diagram The pin numbers referred to on the left- and right-hand sides of the diagram are those of the 50-pin card-edge connector between the Sync MP Line-Driver Cards’ half-cards and the MicroRACK.
  • Page 25 NOTES...
  • Page 26 © 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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