Seagate ST31230N/ND Guia de Instalação descarregar pdf (Página 75)

Cabling, installing, and configuring the peripheral devices 8-3

Cabling and data port usage

Standard 1.0 Option 11 EC Installation and Maintenance Guide November 1999

Cabling and data port usage

EC 11 cabling

All cabling to and from the EC 11, including cabling for

Network Loop Interface and AML loops to the Meridian 1

Option 11 switch, is through the I/O connectors on the

bottom of the EC 11. External devices such as the

administration terminal, GACs, and modems also interface

through RS-232 connectors mounted on the I/O panel on the

bottom of the EC 11. There is no internal cabling within the

EC 11. The backplane has no switches and is inaccessible

from the rear.

Data port usage

The following table shows the recommended data port usage

for the EC 11. The general-purpose RS-232 ports may be

programmed to support various peripheral equipment.

Internal connection of the ports is shown in the diagram in

this section.

I/O port Recommended uses

AML Application Module Link to the Option 11

switch — RS-232 synchronous (cable

NTND91AA/AB and gender changer

A0351509)

Console System Console (or A/B switch) — RS-232

asynchronous (cable NTND91AA/AB, plus

null modem adapter NTND93AA. Use gender

changer A0351509 if necessary.)

NLI 1 Network Loop Interface to the Option 11

switch (cable NTDK3302/3/4/5)

NLI 2 Network Loop Interface to the Option 11

switch (cable NTDK3302/3/4/5)

4-port RS-232

(for node 1)

Utility card fanout cable to GAC, MAT,

Network Modem, Printer, ACCESS Link,

PMSI Link (cable NT6P0110)

Alarm/Modem Alarm output (cable NTDK59AA)

DP2 RS-232 asynchronous port (cable

NTND91AA/AB, possibly null modem

adapter, gender changer)

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Seagate ST31230N/ND Guia de Instalação Página 75