Seagate ST31230N/ND Guia de Instalação descarregar pdf (Página 122)

9-4 Installing the EC 11 to Meridian 1 Option 11 switch interface

Overview of typical cabling

Standard 1.0 Option 11 EC Installation and Maintenance Guide November 1999

Installing the NLI

cables and MGate

cards

This section describes the NLI cabling between a 2-node, 48-

voice channel EC 11 and an Option 11 switch. Use this

section as a “quick start” guide only. Details are explained in

the remainder of this chapter.

To install the NLI cables and MGate cards, follow these steps.

NLI cable length

NLI cable lengths are as follows:

• NTDK3302—3 m (10 ft.)

• NTDK3303—6 m (20 ft.)

• NTDK3304—9 m (30 ft.)

• NTDK3305—3 m (10 ft.)—to meet CISPR-B regulatory

requirements for some countries

Step Action

1 Configure the DIP switches on three MGate cards

(NTRB18AA) as follows from left to right:

on, on, on, off, off, off, on, off (on=up)

2 Install the three MGate cards in slots 2, 6, and 10 of

the Option 11 switch.

3 Plug the 50-pin connector ends of three NLI cables

(NTDK 3302/03/04/05) into connectors J2, J6, and

J10 (which correspond with slots 2, 6, and 10) on

the Option 11 switch.

4 Plug the 36-pin connector end of the cable

connected to J2 into connector NLI1 on the EC 11.

5 Plug the 36-pin connector end of the cable

connected to J6 into connector NLI2 on the EC 11.

6 Plug the 36-pin connector end of the cable

connected to J10 into connector NLI3 on the EC 11.

ATTENTION

The same NLI cable length should be used for all NLI

cables on the EC 11.

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