User Manual User guide
Table Of Contents
- Chapter 1 TVN 20 System Basics
- Chapter 2 TVN Advanced Topics
- HDD Configuration & Management
- Account Management (Users)
- Advanced Camera Settings
- Exception Parameters – System Health Monitoring
- Video Loss
- Remote Record & Video Download
- Additional Network Settings
- Remote Update
- Serial Port Settings – RS-232 & RS-485
- Log Files
- Appendix A Troubleshooting
- Appendix B TVN 20 Specifications
- Appendix C TVN 20 IP Camera Capacities
- Appendix D TVN 20 Supported IP Cameras
- Appendix E TVN 20 USB Archive Options
- Appendix F TruVision Device Finder
- Appendix GGlossary of Terms
- Appendix HWarranty and Support

TruVision NVR 20 User Manual 111
Serial Port Settings – RS-232 & RS-485
RS-232 Port
Presently the RS-232 port on the TVN 20 is only for Interlogix technical support
use only.
RS-485 Ports
The RS-485 port on the rear of the TVN 20 and RS-485 from IP cameras that
support an RS-485 connection are not used at this time and are reserved for
future use.