Matrix Orbital PK202-25 - Manual (Page 14)

5 3 2
9
Figure 10: DB9 Pinout
For RS232 communication via the 4 pin connector, please see the figure and table below.
1 2 3 4 1 2 3 4
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:
Matrix Orbital PK202-25 10