Black Box ME445C-X.21, ME444AE-R3, ME445C-35, ME444A-R3, ME445C-530 manual Kbps Line Driver

Page 1

MARCH 2004

ME444A-R3

ME444AE-R3

ME444A-530-R3

ME444AE-530-R3

ME445C-35

ME445C-530

ME445C-X.21

256-kbps Line Driver

(V.35, RS-530, or X.21)

CUSTOMER	Order toll-freein the U.S.: Call 877-877-BBOX(outside U.S. call 724-746-5500)
SUPPORT	FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500or fax 724-746-0746
INFORMATION	Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
	Web site: www.blackbox.com • E-mail:info@blackbox.com

Image 1

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 Placement of the Standalone Version ConfigurationInstalling 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 ProcedureBit-Error-Rate Tester Bert TroubleshootingLoop 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