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High Speed Mini Driver
with Transformer Isolation
and Surge Protection
CUSTOMER SUPPORT INFORMATION
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: info@blackbox.com
ME862A-FSP-R2
ME862A-MSP-R2
ME863A-FSP-R2
SEPTEMBER 2000
ME863A-MSP-R2
ME864A-FSP-R2
ME864A-MSP-R2
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Summary of Contents for Black Box ME862A-FSP-R2
- Page 1 Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500) FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.blackbox.com • E-mail: info@blackbox.com...
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Page 2: Table Of Contents
HIGH SPEED MINI DRIVER Contents Chapter Page 1. Specifications............3 2. Introduction ............6 3. Configuration ............8 3.1 Overview ............8 3.2 Setting the DCE/DTE Switch ......9 3.3 Selecting High vs. Low Speed ......10 3.3.1 Jumper JP2 ..........11 3.3.2 Jumper JP3 ..........11 4. Installation............12 4.1 Connection to the Twisted-Pair Interface..12 4.1.1 Twisted-Pair Connection Using RJ-11 or RJ-45 ......13... -
Page 3: Specifications
CHAPTER 1: Specifications 1. Specifications Data Rates Up to 115.2 kbps Transmission Asynchronous, full duplex Format Transmission (2) Unconditioned twisted Line pair, 19 to 26 AWG Interfaces EIA RS-232, CCITT V.24 Connectors DB25 male or female on RS-232 side; RJ-11 (ME862A-R2), RJ-45 (ME863A-R2), or terminal block with strain relief... - Page 4 HIGH SPEED MINI DRIVER DCE (transmits from RS-232 Factory Switch Setting on pin 3) Power Supply None required; uses power from EIA data and control signals (TD, RTS, DTR) Control Signals DSR and DCD follow DTR from the terminal (DTE); CTS follows RTS from the terminal (DTE) Compliance...
- Page 5 CHAPTER 1: Specifications Rates High Speed Mini Driver Distance Table: miles (km) Data Rate Wire Gauge 115,200 0.6 (1) 0.45 (0.7) 0.3 (0.5) 57,600 2 (3.2) 1.5 (2.4) 1 (1.6) 38,400 2.4 (3.9) 1.8 (2.9) 1.2 (1.9) 19,200 2.6 (4.2) 2 (3.2) 1.2 (1.9) 9600...
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Page 6: Introduction
HIGH SPEED MINI DRIVER 2. Introduction The High Speed Mini Driver with Transformer Isolation and Surge Protection is a self-powered, transformer-isolated, short-range modem that lets two asynchronous RS-232 devices communicate between buildings, over two twisted pairs. Supporting asynchronous data rates to 115.2 kbps, the High Speed Mini Driver derives the necessary power for operation from the data and control voltages on the RS-232 interface. - Page 7 CHAPTER 2: Introduction The High Speed Mini Driver also incorporates high- speed avalanche diodes that intercept data-line transient surges and shunt them safely to chassis ground. With surge-handling capacity of 600W per wire at 1 ms, the High Speed Mini Driver can protect itself and connected equipment from nearby lightning strikes and other surges of electromagnetic radiation.
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Page 8: Configuration
HIGH SPEED MINI DRIVER 3. Configuration 3.1 Overview The High Speed Mini Driver is configured using an external DCE/DTE switch and two internal jumpers (the factory jumper settings are appropriate for most applications). This section describes the configuration switch and jumpers and shows factory defaults. -
Page 9: Setting The Dce/Dte Switch
CHAPTER 3: Configuration DTE/DCE Switch Jumper JP3 Jumper JP2 Terminal Block 3.2 Setting the DCE/DTE Switch For your convenience, the High Speed Mini Driver has an externally accessible DCE/DTE switch (see the diagram above). If the device connected to the Mini Driver is a modem or multiplexor (or is wired like one), set the switch to “DTE.”... -
Page 10: Selecting High Vs. Low Speed
HIGH SPEED MINI DRIVER If the device connected to the High Speed Mini Driver is a PC, terminal, or host computer (or is wired like one), set the switch to “DCE.” This setting causes the Mini Driver to behave like Data Communications Equipment and transmit data on pin 3. -
Page 11: Jumper Jp2
CHAPTER 3: Configuration 3.3.1 J UMPER Jumper JP2 is set in conjunction with jumper JP3 to place the High Speed Mini Driver in either High or Low Speed. operating mode. For the High Speed setting (the factory default), jumper JP2 should be placed on only one of the two pins. -
Page 12: Installation
HIGH SPEED MINI DRIVER 4. Installation Once you have properly configured the DCE/DTE switch, you are ready to connect the High Speed Mini Driver to your system. 4.1 Connection to the Twisted-Pair Interface The High Speed Mini Driver supports data-only communication between two RS-232 devices. -
Page 13: Twisted-Pair Connection Using Rj-11 Or Rj-45
CHAPTER 4: Installation For your convenience, the High Speed Mini Driver is available with three different twisted-pair interfaces: RJ-11 jack (ME862A-R2), RJ-45 jack (ME863A-R2), and terminal blocks with strain relief (ME864A-R2). 4.1.1 T RJ-11 RJ-45 WISTED ONNECTION SING The RJ-11 and RJ-45 connectors on the High Speed Mini Driver’s twisted-pair interface are prewired for a standard telco wiring environment. - Page 14 HIGH SPEED MINI DRIVER Signal Pin No. Color* Color Pin No. Signal GND** Blue ....White RCV- Yellow....Red XMT- XMT+ Green ....Black RCV+ XMT- Red....Yellow RCV- RCV+ Black ....Green XMT+ White ....Blue **Connection to ground is optional *Standard AT&T color codes—yours may be different 1 - Blue 2 - Orange 1 - Blue...
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Page 15: Twisted-Pair Connection Using Terminal Blocks
CHAPTER 4: Installation 4.1.2 T WISTED ONNECTION SING ERMINAL LOCKS If your RS-422 application requires you to connect two pairs of bare wires to the High Speed Mini Driver, you will need to open the case to access the terminal blocks. This section tells you how to open the case, connect the bare wires to the terminal blocks, and fasten the strain-relief collar in place so that the wires won’t pull loose. - Page 16 HIGH SPEED MINI DRIVER Once the unit has been opened, you will be able to see the terminal blocks located at the rear of the PC board.
- Page 17 CHAPTER 4: Installation 2. Strip the outer insulation from the twisted pairs about one inch from the end. 3. Strip back the insulation on each of the two twisted-pair wires about one quarter of an inch.
- Page 18 HIGH SPEED MINI DRIVER 4. Connect one pair of wires to XMT+ and XMT- (transmit positive and negative) on the terminal block, making careful note of which color is positive, and which color is negative. 5. Connect the other pair of wires to RCV+ and RCV- (receive positive and negative) on the terminal block, again making careful note of which color is positive, and which color is negative.
- Page 19 CHAPTER 4: Installation 7. When you finish connecting the wires to the terminal block, the assembly should resemble the diagram below. 8. Place the two halves of the strain-relief assembly on either side of the telephone wire and press together very lightly. Slide the assembly so that it is about two inches (5.1 cm) from the terminal posts and press together firmly.
- Page 20 HIGH SPEED MINI DRIVER 9. Insert the strain-relief assembly with the wire going through it into the slot in the bottom half of the modem case and set it into the recess in the case. 10. Bend the top half of the case as necessary to place it over the strain-relief assembly.
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Page 21: Connection To The Rs-232 Interface
CHAPTER 4: Installation 11. Insert one captive screw through a saddle washer, then insert the captive screw with the washer on it through the hole in the DB25 end of the case. Snap that side of the case closed. Repeat the process for the other side. - Page 22 HIGH SPEED MINI DRIVER RS-232 interface are passed straight through. All control signals from the RS-232 interface are looped back. NOTE If your system requires hardware flow control, you will need the Mini Driver MPI with Surge Protection (ME764A-R2). Call your supplier for more information.
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Page 23: Appendix A: Rs-232C Pin Configurations
APPENDIX A: RS-232C Pin Configurations Appendix A. RS-232C Pin Configurations DIRECTION STANDARD “DCE” SETTING DIRECTION 1- (FG) Frame Ground 2- (TD) Transmit Data To Mini Driver 3- RD) Receive Data From Mini Driver 4- (RTS) Request to Send To Mini Driver 5- (CTS) Clear to Send From Mini Driver 6- (DSR) Data Set Ready... -
Page 24: Appendix B. Block Diagram
HIGH SPEED MINI DRIVER Appendix B. Block Diagram... -
Page 25: Trademarks Used In This Manual
TRADEMARKS TRADEMARKS USED IN THIS MANUAL Any trademarks mentioned in this manual are acknowledged to be the property of the trademark owners. - Page 26 NOTES...
- Page 27 © Copyright 2000. Black Box Corporation. All rights reserved. 1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746...
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