Quatech RS-485 user manual Features, DSC-200/300 Product Series Summary

1.1 Features

The standard DSC-200/300 implements each of its communication channels with a 16550 UART and uses standard line driver and receiver components. For improved performance and industrial-grade reliability, Quatech offers the following board upgrades:

1.1.1 "IND" Option --- Surge Suppression Upgrade

The "IND" option provides the protection essential for reliable use in an industrial environment. Each communication line has a surge suppressor capable of sustaining up to 40A 20us peak transient surges, a clamping voltage of 30V and a peak energy dissipation of 0.1 Joules.

Part Number	IND Option
DSC-200/300	no
DSC-200/300IND	yes

Figure 1 --- DSC-200/300 Product Series Summary

Quatech DSC-200/300 User's Manual 6