Advantech PCL-740 Manuel d'utilisateur Page 71

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61 Chapter 5
5.1.2 PCL-743B/S, PCL-745B/S, and PCL-846A/B
The following table show the pin assignments for the card's DB-9 con-
nectors in RS-422 and RS-485 modes.
5.1.3 PCL-746+ and PCL-849A/B/+/L
The following diagrams show the pin assignments for DB-37, DB-25 and
DB-9 connectors for RS-232, RS-422 and RS-485 Modes.
Figure 5.3: PCL-746+, PCL849A/B/+/L RS-232 DB-37 Pin Assignments
Table 5.1: PCL-743B/S, PCL-745B/S Pin Description (DB-9 male)
1 TX-(DATA-) or send data - (DTE)
2 TX+(DATA+) or send data + (DTE)
3 RX+ or receive data + (DTE)
4 RX - or receive data - (DTE)
5 GROUND
6 RTS - or ready to send -
7 RTS+ or ready to send +
8 CTS+ or clear to send +
9 CTS- or clear to send -
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