Black Box ME444A-R3, ME444AE-R3, ME445C-X.21, ME445C-35, ME445C-530, ME444AE-530-R3 Safety Warnings

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256-KBPS LINE DRIVER (V.35, RS-530, OR X.21)

Safety Warnings

Always observe standard safety precautions during installation, operation, and maintenance of this product. Only qualified and authorized service personnel should adjust, maintain, or repair this instrument. Do not attempt to adjust, maintain, or repair the equipment.

Telecommunication Safety

The safety status of each of the ports on the line driver appears below:

Ports

Safety Status

V.24, V.35, V.36, X.21, RS-530

SELV

Circuit operating with

LAN

 

Safety Extra-Low Voltage

G.703, Line

TNV-1

Circuit whose normal

 

 

operating voltage is

 

 

within the limits of SELV,

on which overvoltages from telecommuni- cations networks are possible.

FCC Part 15 User Information

This equipment has been tested and found to comply with the limits of a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy, and, if not installed and used in accordance with the instruction manual, may cause harmful interference to the radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

Warning per EN 55022

This is a Class A product. In a domestic environment, this product may cause interference, in which case the user may be required to take adequate measures.

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Contents Kbps Line Driver FCC and IC RFI Statements Safety Warnings Declaration of Conformity Kbps Line Driver V.35, RS-530, or NOM Statement Trademarks Used in this Manual Contents Flow Control None SpecificationsSpecifications Physical Description IntroductionFunctional Description Line driver block diagramModulation Timing Point-to-point application ApplicationsTail-circuit application Configuration Placement of the Standalone VersionInstalling the Card Version in the RackNest 2/14 Description of the Racknest 2/14’S Power Supply User-configurable options Configuring the Standalone or Card VersionUser-configurable options Layout of the 256-kbps Line Driver circuit board Kbps Line Driver V.35, RS-530, or Installing the Standalone Version in 19-Inch Racks InstallationInstalling a single unit in a 19-inch rack Installing two units in a 19-inch rack Installing a card in the RackNest 2/14 Installing the 256-kbps Line Driver Rackmount Card VersionRackNest 2/14 illustrated Function Installation Kbps Line Driver V.35, RS-530, or Signal ITU-TSS Lead Name Abbrev Circuit Type Rack Norm Nest PIN Pinout of the V.35 standalone’s M/34 connector DB25 DA15 Connecting Data Cables Line Connection Installation Operation Controls and IndicatorsOperation Indicators Operating ProcedureTroubleshooting Bit-Error-Rate Tester BertLoop Tests Bert using loops Local Analog Loopback Modem Self-TestLocal analog loopback Remote Digital Loopback Remote digital loopback Local Digital LoopbackLocal digital loopback Calling Black BoxShipping and Packaging 19-AWG 22-AWG 24-AWG 26-AWG Kbps Miles Appendix Maximum DistancesCopyright 2004. Black Box Corporation. All rights reserved