Echelon PCLTA-21 Guía de usuario descargar pdf (Pagina 34)

Electrical and Mechanical Interfaces

Terminal Connection

3 Shield

2 RS-485 -

1 RS-485+

Use only shielded cabling suitable for an RS-485 channel. The use

of unshielded cabling could result in damage to the adapter due to

common mode voltage associated with differences in ground

potential between different devices.

Mechanical Considerations

PCLTA-21 Models 74401 – 74404 measure 2.54” (6.5cm) H x 4.72” (12cm) L. All

models are equipped with a full-height chassis bracket and a low profile bracket.

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Echelon PCLTA-21 Guía de usuario Pagina 34