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

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CHAPTER 1: Specifications

Maximum Altitude: 8000 ft. (2438.4 m)

Enclosure: High-impact plastic

Power: ME444A-R3: Directly from outlet through detachable 5-ft. (1.5-m) power cord (included); Optimal input: 115 VAC, 60 Hz; Input ranges: 103.5 to 126.5 VAC, 47 to 63 Hz; Consumption: 5 watts;

ME444AE-R3: Directly from outlet through detachable 5-ft. (1.5-m) power cord; Optimal input: 230 VAC, 60 Hz; Input ranges: 207 to 253 VAC, 47 to 63 Hz; Consumption: 5 watts;

ME445C: From the RackNest 2/14; Consumption: 5 watts

Size: ME444A/E-R3: 1.8"H x 7.6"W x 9.6"D (4.6 x 19.3 x 24.4 cm), but the buttons protrude up to 0.3" (0.8 cm) from the front panel and the connectors protrude up to 0.8" (2 cm) from the rear panel;

ME445C: 6.2"H x 0.9"W x 9"D (15.7 x 2.3 x 22.9 cm)

Weight: ME444A/E-R3: 3.1 lb. (1.4 kg); ME445C: 0.8 lb. (0.4 kg)

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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 Specifications Flow Control NoneSpecifications Introduction Physical DescriptionLine driver block diagram Functional DescriptionModulation Timing Applications Point-to-point applicationTail-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 Configuring the Standalone or Card Version User-configurable optionsUser-configurable options Layout of the 256-kbps Line Driver circuit board Kbps Line Driver V.35, RS-530, or Installation Installing the Standalone Version in 19-Inch RacksInstalling a single unit in a 19-inch rack Installing two units in a 19-inch rack Installing the 256-kbps Line Driver Rackmount Card Version Installing a card in the RackNest 2/14RackNest 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 Controls and Indicators OperationOperation Operating Procedure IndicatorsBit-Error-Rate Tester Bert TroubleshootingLoop Tests Bert using loops Modem Self-Test Local Analog LoopbackLocal analog loopback Remote Digital Loopback Local Digital Loopback Remote digital loopbackCalling Black Box Local digital loopbackShipping and Packaging Appendix Maximum Distances 19-AWG 22-AWG 24-AWG 26-AWG Kbps MilesCopyright 2004. Black Box Corporation. All rights reserved