Black Box ME444A-530-R3, ME444AE-R3, ME445C-X.21, ME445C-35, ME444A-R3 manual Connecting Data Cables

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CHAPTER 4: Installation

4.3 Connecting Data Cables

After you set the standalone line driver’s internal controls, it’s ready to be cabled for operation.

Its electrical connectors are located on its rear panel. These consist of a female V.35 interface connector labeled “DTE,” a 5-screw terminal block, and an IEC 320 AC inlet that contains an integral fuse compartment.

The V.35 interface connector, a 34-pin M-block female, carries input/output data, clock signals, and control signals between the line driver and the DTE or DCE (refer to Table 4-4).

The terminal block has five screws for connecting transmit and receive lines—the transmit pair where XMT is indicated (for data output from the unit), the receive pair where RCV is indicated (for data input to the unit), and a drain wire from the cable shield, if you are using shielded cable, where GND is indicated. The XMT and RCV pairs are not sensitive to polarity.

Connect power and data cables to the line driver as described in the following subsections.

4.3.1POWER CONNECTION

The power connection provides AC voltage to the line driver.

To make this connection on the 115-VAC (ME444A-R3) models, first attach the IEC 320 female outlet of the included power cord to the IEC 320 male inlet on the standalone line driver’s rear panel.

To make this connection on the 230-VAC (ME444AE-R3) models, first attach the IEC 320 female outlet of an appropriate power cord to the IEC 320 male inlet on the standalone line driver’s rear panel. (This power cord must have a plug on the other end that will fit the site’s mains outlets.)

WARNING!

BEFORE PLUGGING THIS UNIT INTO AN OUTLET OR OTHER LIVE POWER SOURCE, make sure its protective earth contact is connected to the protective conductor of the (mains) power cord. The mains plug must be inserted only in a socket outlet provided with a protective earth contact. The protective action must not be negated by use of an extension cord (power cable) without a protective (grounding) conductor.

If the line driver’s fuse blows (opens), make sure that you replace it only with a

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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
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