Matrix-orbital PK202-25 Manual do Utilizador descarregar pdf (Página 14)

5 3

Figure 10: DB9 Pinout

For RS232 communication via the 4 pin connector, please see the ﬁgure and table below.

1 23 4 12 34

Figure 11: Power Connector

Table 5: Connector Pinout

Pin 1 +5.0 VDC (+7 to +15 VDC with wide voltage option)

Pin 2 Rx

Pin 3 Tx

Pin 4 Ground

2.2.2 TTL Communications

A standard DB-9F or 4 pin power connector/communication (female) connector is needed for TTL com-

munications. Power may also be supplied via this connector if desired. A PC is not to be used when TTL

communication is established via a direct com port. One modiﬁcation is required for TTL. The RS232

jumper selection must be removed and placed on the TTL jumper selection. Please see Figure below for

appropriate modiﬁcation:

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Matrix-orbital PK202-25 Manual do Utilizador Página 14