User guide

Connecting RS-232 Devices

The RS-232 standard is used in some analog cameras and computer serial

ports. Before connecting the S1800e series device to a RS-232 serial

equipment, you need to determine if they are data terminal equipment (DTE) or

data communication equipment (DCE).

When connecting two modules of the same type, you have to cross the data

wires to create a communication. On the other hand, when connecting a DTE

with a DCE, a straight cable is required.

► 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.

Chapter 3: Installing the S1800e Series Multiport Devices