Siemens SIMATIC NET Panduan Petunjuk Pengoperasian - Halaman 8

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Introduction

1.2 Description of the product

Operator controls

The bus terminal consists of the following elements and controls:

● 1 terminal block with 6 terminals for wires with a cross-sectional area of ≤ 1.5 mm

With this terminal block you can connect the incoming and outgoing bus cable and, if

necessary, Protective Earth (PE).

● Screw down clamps for shield contact

● 2 switches:

– right-hand switch ("Termination")

– left-hand switch

● A 1.5 m long spur line with a 9-pin D-sub male connector

You can connect a DTE directly to this spur line.

Figure 1-1

With the right-hand switch, you can terminate the end of an incoming, electrical

segment (A1, B1) with the characteristic impedance (switch on). At the same time, the

outgoing, electrical segment (A2, B2) is interrupted.

With the left-hand switch you can set the range of the transmission speed 9.6 kbps...

1.5 Mbps and 3 Mbps...12 Mbps.

Operator controls

Operating Instructions, 07/2013, C79000-G8976-C333-01

12M bus terminal