Eaton Electrical EZ204-DP user manual Parameters Cable type a

Installation

Transfer rates – automatic The EZ204-DP module automatically detects the baud rate

baud rate detection used in the communication network after it is switched on. However, this requires that at least one station sends valid telegrams in the network.

The EZ204-DP module detects the transfer rate automatically. The following transfer rates are supported:

• 9.6 Kbit/s to 12000 Kbit/s

Maximum distances/bus Two types of bus cable are specified in IEC 61158. Cable type

cable lengthsB should no longer be used with new applications because it is obsolete. Cable type A allows all transfer rates up to 12000 Kbit/s to be used. Cables for burial in the ground, festoon suspension and drum cables are also available.

The cable parameters are as follows:

Parameters Cable type A

Surge impedance in Ω

Effective capacitance (pF/m)

Loop resistance (Ω/km)

Core diameter (mm)

Core cross-section (mm2)

135 ... 165 at 3 ... 20 MHz

<30

<110 > 0.64 > 0.34

The cable parameters specified allow the following bus segment lengths.

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