User guide

► To connect RS-232 devices

1. Remove the terminal block plug from the rear of the device.

2. Connect a twisted pair cable to the terminal block plug as shown below.

3. Connect the terminal block plug to the rear of the device.

Connecting RS-422/485 Four-Wires

Most target devices (keyboards, PTZ cameras, monitors) use the RS-422/485

protocol for communication.

Using a twisted pair cable, connect the signals as shown in the table below.

Signal on Peripheral Signal on S1800e

Tx+ Tx+

Tx- Tx-

Rx+ Rx+

Rx- Rx-

ground ground

Note

On some equipment, signal terminology may vary. Refer to the peripheral

documentation to find the equivalent terms.

Chapter 2: Installing the Single-and Dual-Port Devices