I-7530 RS-232/CAN Converter User’s Manual (Version 2.5, Mar/2012) ------------- 6
2. Hardware
2.1 Block Diagram
Figure 1 is a block diagram illustrating the functions on the I-7530
module. It provides the 3000Vrms Isolation in the CAN interface site. And
hardware media in RS-232 interface is only adopted 3-wire connection.
Figure 1: Block diagram of I-7530
2.2 Pin Assignment
Table 1: RS-232 DB9 Female Connector (CN1)
Terminal 3-wire
RS-232
1 Not
Connect
2
TXD
3
RXD
4 Not
Connect
5
GND
6
7
8
9
Not Connect
