Seagate ST31230N/ND Installationsanleitung PDF herunterladen (Seite 77)

Cabling, installing, and configuring the peripheral devices 8-5

Installing the primary administration terminal

Standard 1.0 Option 11 EC Installation and Maintenance Guide November 1999

Installing the primary administration terminal

Introduction

In this section you will install either

• an administration terminal directly to the EC 11

• an A/B switchbox to the EC 11, and an administration

terminal to the A/B switchbox

If you install a switchbox, see the procedure for installing the

associated modem in the “Installing the remote maintenance

terminal and associated modems” section later in this chapter.

A word about RS-232

cables

Nortel supplies straight-through RS-232 cables with male

connectors on both ends (NTND91AA/AB). To make a null

modem cable, connect a straight-through cable to a null

modem adapter (NTND93AA). This produces the equivalent

of a male-to-male null modem cable. To plug the cable into a

male connector, use a female-to-female gender changer

(A0351509).

Installing the primary

administration

terminal directly to the

EC 11

To install the primary administration terminal directly to the

EC 11, follow these steps. The system here does not have an

A/B switch or a modem installed for remote support.

Step Action

1 Place the administration terminal in a suitable

location.

Install the administration terminal within 15 m (50 ft.)

of the EC 11 system. If the distance is greater than

15 m (50 ft.), use asynchronous limited distance

modems.

2 Connect the keyboard and power cord to the

terminal.

3 Connect one end of a straight-through RS-232 cable

(NTND91AA/AB) to a null modem adapter

(NTND93AA). Connect the other end of the adapter

to the serial COMM or COMM1 connector on the

terminal. Use a gender adapter (A0351509) as

necessary.

4 Connect the free end of the cable to the connector

labeled “Console” on the EC 11.

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