Dynalite DTP170 설치 매뉴얼 - 페이지 5

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1. Mounting

Connect Data Cable in a 'Daisy Chain'

RJ12 Socket Connections

Serial Cable Permanent Connections

connecting serial cables

Serial Cable Connections

There is one RS485 port for DyNet

the form of a RJ12 socket, on the front, which is

used for the temporary connection of a PC or a

Portable Programmer (DPP601). There are data

terminals on the rear, for permanent connections.

The recommended cable for connections to the

serial port is screened, stranded RS485 data

cable with three twisted pairs. Recommended

cable types include:

Belden:

9503

Dynalite:

DYNET-STP-CABLE

Garland:

MCP3S

Hartland:

HCK603

M&M Cable:

B2003CS

M&M cable:

B9503CS

Multicables:

AWM E120236 2092 20

RS Components: 368-687

One pair is paralleled for GND, one pair

paralleled for +12V, and one pair used for DATA

and DATA.

Recommended Cable Colour Coding

Green/White pair:

Orange/White pair:

Blue/White pair:

The colour-coding scheme used is not critical, as

long as the same scheme is used throughout the

installation. The shield should be terminated in

the "SHIELD" terminal if present, otherwise it

should be terminated to the metal chassis of

electrically earthed devices, and looped through

on devices that are not electrically earthed.

Serial Cable Connecting Method

The recommended connecting method is to

'daisy chain' devices (starting at the first device,

then looping in then out of devices, with a single

cable terminating at the last device.

should not be any spurs or stubs, and only the

first and last device should terminate one cable.

All other devices should terminate two cables).

Devices may be wired in any order. The Data

Cable should be. A data cable that is

DTP170 Installation Manual Rev C.docx

signals, in

paralleled for GND

paralleled for +VE

Blue for DATA +

White for DATA -

There