Device Configuration Ethernet; Autonegotiation (Nway); Transmission Rate Conversion; Network Expansion - Leuze electronic DDLS 200 Technical Description

Bus-capable optical data transmission

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Ethernet

10.3

Device configuration Ethernet

If the switch S2.1 of the DDLS 200 is set to ON (default), the device is in autonegotiation mode. This

means that the DDLS 200 detects the transmission characteristics of the connected partner unit au-

tomatically (10Mbit or 100Mbit, full or half duplex) and adjusts itself accordingly.

If both devices are in autonegotiation mode, they adjust to the highest common denominator.

If a certain transmission type is to be required, the autonegotiation function must be deactivated (S2.1

= OFF). The transmission characteristics can then be set using the switches S2.2 and S2.3.

Through the use of an optical transmission system, the Ethernet is divided into two segments. Differ-

ent transmission rates can be used in the physically separated segments. The DDLS 200s then func-

tions as transmission rate converter. During transmission rate conversion, it must be ensured that the

bandwidth of the segment with the lower transmission rate is adequate for processing the incoming

data.

Switch / hub

1 : 1 cable

max. 100m

Figure 10.4:Network expansion

Note!

The network expansion of the bus system can be increased through the use of the

DDLS 200.

Optical data transmission

up to 300m

DDLS 200

Terminal / PLC

Crossover cable

max. 100m

Leuze electronic

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