IEI Integration IBS-19A - Manual (Page 42)

IBS-19A Series Medical Panel PC
Page 42
Pin Description Pin Description
1 RS-422 TX+ 3 RS-422 RX+ (RS-485 D+)
2 RS-422 TX- 4 RS-422 RX- (RS-485 D-)
Table 3-4: RS-422/485 Serial Port Pinouts
To install the RS-422/485 devices, follow the steps below.
Step 1: Locate the RS-422/RS485 connector. The location of the RS-422/RS-485
connector is shown in Section 1.4.4.
Step 2: Connect the RS-422/485 connector to the RS-422/485 cable.
Step 3: Insert the serial connector . Insert the DB-9 connector of a serial device into
the DB-9 connector on the RS-422/485 cable.
Step 4: Secure the connector . Secure the serial device connector to the external
interface by tightening the two retention screws on either side of the connector.
Step 5: The DB-9 connector pinouts are listed below.
Figure 3-13: RS-422/485 Serial Port (DB-9)
Pin RS-422 RS-485
1 TX+ --
2 TX- --
3 RX+ DATA+
4 RX- DATA-