Echelon PCLTA-21 Guia do Utilizador descarregar pdf (Página 32)

Electrical and Mechanical Interfaces

PCLTA-21 Board Layout

Figure 4.1 shows the layout of the PCLTA-21 card Models 74501, 74502, 74503,

and 74504. Model 74504 (TP-RS485) includes jumpers that must be configured

to set the correct speed on the RS-485 channel (figure 4.2).

Figure 4.1 PCLTA-21 Models 74401-74404 Mechanical Layout and Interfaces

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Echelon PCLTA-21 Guia do Utilizador Página 32