 
 
113 
Multi-4ALL/cPCI 
- RS422 Model 
 
1. RS422 Jumper Setting 
 
 
 
2. 9 Pin Connector (Female) 
 
 
3. Mode Change 
Either Point-to-Point or Multi-Drop mode can be selected by software on device driver 
installation. Point-to-Point mode is set to default. 
 
4. RS422 Point-to-Point Connection