Introduction | Black Box ME758C-RJ45, ME759C-RJ45, May-95 manual

CHAPTER 2: Introduction

•Internal, external, or received loopback clocking

•Hardware or software flow control

•Automatic equalization and gain control

•Anti-streaming timer

•Built-in transformer isolation and high-speed surge protection

•V.52 and V.54 test modes

•Eleven LED indicators show you status at a glance

•Error LED lights when Card detects broken or inferior cable

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Black Box ME758C-RJ45, ME759C-RJ45, May-95, ME759C-RJ11, ME758C-RJ11 manual Introduction

Contents

Multi-Function LD Cards FCC Statements MULTI-FUNCTION LD Card NOM Statements Contents Specifications Diagnostics IndicatorsConnectors Weight PowerTemperature Fuse Introduction FeaturesOverview Introduction Setting the Switches on the Main Module Main-module switches On and OFF settings of the DIP switches Switch S1 Summary S1 Positions 5 and 6 Clock Source S1 Positions 1 through 4 Data-Rate SettingS1 Position 7 Protocol S2 Position 2 2-Wire vs -Wire Operation Switch S2 SummaryS1 Position 8 Carrier-Control Method S2-6 Signaling-Rate Range S2 Position 3 V.52 and V.54 Diagnostic TestingS2 Positions 4 and 5 RTS/CTS Delay S2-7 and S2-8 Word Length Switch S3 Summary S3-1 and S3-2 Input Impedance S3-5 DTE RS-232 Initiation of Local Loopback Test Recommended Impedance SettingsS3-4 Mode Selection S3-6 DTE RS-232 Initiation of Remote Loopback Test Setting the Jumpers on the Interface Module S3-7 and S3-8 Antistream Control Four interface modules Jumper locations Summary of Interface-Module Jumper Functions Line Interface Line Shield Connection to Frame Ground JB2 Serial Interface Signal Ground and Frame Ground JB4 JB5 Installation MicroRacks An Overview MicroRacks’ Power Supply Installing the Multi-Function LD Card in the MicroRack Pinout of the RS-232 Interface RS-232 Serial Cables and ConnectorsPinout of the 10-Pin RJ Interface Modem-to-Modem Line Cables and Connectors Line-Cable Pinouts AT&T standard modular color codes Two-pair star wiring for host and slave Cards Multipoint Applications Operation and Diagnostics Status LEDs RTS and CD Indicators Diagnostic Testing Using the Error LED Power-Up V.54 and V.52 Diagnostic Tests Remote Digital Loopback RDL Using the V.52 Bert Test Independently Calling Your Supplier TroubleshootingShipping and Packaging Wire Gauge Capacitance Resistance Appendix Cable Recommendations MULTI-FUNCTION LD Card Copyright 1995. Black Box Corporation. All rights reserved