Black Box RM110A Manuale utente

1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746

© Copyright 1997. Black Box Corporation. All rights reserved.

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INFORMATION

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FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746

Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018

Web site: www.blackbox.com • E-mail: [email protected]

MARCH 1997

RM110A

RM110A-2PS

RM110AE

Rack Nest 2/14

ON

ON

1

TRADEMARKS

TRADEMARKS USED IN THIS MANUAL

All applied-for and registered trademarks are the property of their respective owners.

2

RACK NEST 2/14

Connectors — Line: (14) 5-screw, snap-type terminal

blocks; DTE: (14) DB25 female connectors

Number of Slots — 14 slots for cards

Certification — CE

Operating Temperature — 32 to 122°F (0 to 50°C)

Humidity — 10 to 90%, noncondensing

Power — RM110A: 115-VAC (±10%), 47–63 Hz;

RM110A-2PS: (2) 115-VAC power supplies

(one main and one redundant), 47–63 Hz;

RM110AE: 230-VAC (±10%), 47–63 Hz

Size — 7"H x 19"W x 10.4"D

(17.8 x 48.3 x 26.4 cm)

1. Specifications

3

RACK NEST 2/14

2.1 Introduction

The Rack Nest 2/14 is a 19-inch, 4U-high rackmount modem card nest. It

accommodates up to fourteen plug-in cards. The Rack Nest 2/14 provides a

reliable concentration point for multiple baseband links supporting last-mile

or campus applications.

Any combination of modem cards can be installed. Cards are hot-swappable,

which means they can be removed or inserted during operation without

interfering with the operation of other cards.

Each power supply supports a full rack of cards, regardless of the type. The

RM110A-2PS comes with two separate power supplies that back up one

another in case of failure. Each power supply is hot-swappable.

The rear panel consists of fourteen 5-screw, snap-type terminal blocks and

fourteen DB25 connectors (one terminal block and one DB25 connector

per card). The terminal blocks connect the transmit and receive lines. The

transmit pair is connected to the terminals marked XMT, the receive pair is

connected to the terminals marked RCV, and an optional ground connection

is the fifth screw. The DB25 connectors are interface connectors, and they

provide all interface signals for the digital interfaces.

2.2 Features

• High-density 19-inch modem rack.

• Any combination of up to 14 modem cards.

• House fiberoptic and copper-wire modems in a single nest.

• Allows hot-swapping of cards and power supplies.

• 2PS model has separate power supplies for full redundancy.

• 4U high.

2. The Rack Nest 2/14

4

RACK NEST 2/14

2.3 Installation

First, install the Rack Nest 2/14 into a 19-inch rack. Once it’s installed, you

can insert up to fourteen cards. To secure the cards, tighten the nut on the

top and bottom of each card. Also make sure that the cards are fully inserted

into the edge connector inside the rack.

To operate the power supply, all you need to do is plug in the power supply

and press the operating switch on the rear panel. The ON LED will light to

confirm that it’s receiving power and that the switch is on.

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