HID VertX V1000 RS-485 connections

The VertX V1000 controller has two RS-485 serial buses with two ports each.

The two RS-485 serial buses are labeled P3 and P4. Each serial bus has a 10-pin connector divided into two ports, labeled Port 1 and Port 2 on the P3 bus, and Port 3 and Port 4 on the P4 bus. Having two ports on each bus provides the option of splitting each RS-485 bus into two physical connections, allowing a total of four physical connections.

The followings are the do's and don'ts.