Lathem PC2000 Instrukcja Użytkownika Pobierz pdf (Strona 14)

PC2000/PC100 Terminal User’s Guide

RS-485 Connections

• RS-485 Star Configuration

A star configuration connects multiple local terminals or sync time devices to

the computer. Terminals are wired directly back to a SWIFT-485+ connected

to a COM port on the computer. Terminals can be located up to 4000 feet

from the computer.

• RS-485 Multi-Drop (Bus) Configuration

A multi-drop configuration connects multiple local terminals or sync time

devices to the computer. Terminals are wired to junction boxes running in a

single line starting from a SWIFT-485+ that connects to a COM port on the

computer. Terminals can be located up to 4000 feet from the computer.

Modem Connection

A modem connection allows a modem attached to a computer to communicate

through a telephone line to a modem internally connected to a remote

terminal. The local and remote modems allow the computer and terminals to

communicate as if they are directly connected.

RJ11 Connection

RJ-11

SWIFT-485+

Up to 31 Terminals

Max 4000 ft from SWIFT-485+ to Last Terminal

SWIFT-485+

J-Kit (junction box)

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 33 34

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Lathem PC2000 Instrukcja Użytkownika Strona 14