Solvline PCI - Manual (Page 81)

81
Multi-4C/PCI VA3
- RS422/RS485 Combo Model
Combo refers to products that can alternatively use RS422 or RS485 using jumper settings.
1. DB9 Connector (Female)
2. Interface Settings
Selects RS422, RS485 line interface and mode
422: If you want RS422, set jumper like this.
485: If you want RS485, set jumper like this