B&B Electronics QSU2-400-EMB Bedienungsanleitung PDF herunterladen (Seite 6)

Introduction Quatech USB-to-Serial Adapter User’s Manual

Features

Multiple Electrical Interface (MEI)

MEI adapters (model numbers ending with “-400”) are shipped with a

factory default of all serial ports set for RS-232 connections. Each

port can be individually configured for RS-232, RS-422/485 full-

duplex, or RS-422-485 half-duplex operation.

Understanding the LEDs

The LEDs inform you of the configuration of the adapter’s serial

ports. Each serial port has one associated LED located on the back

panel to the right of the port’s DB-9 connector. The following table

lists the possible states of the LEDs and their meaning.

Table 2 - LED codes

LED color Meaning

Red Port is configured for RS-232.

Green Port is configured for RS-422/485.

IND option - surge suppression upgrade

Quatech offers an IND option, or surge-suppression board upgrade, to

provide improved performance and industrial-grade reliability.

The IND option provides essential protection for reliable use in an

industrial environment. Each communication line has a surge

suppressor capable of sustaining up to 40-A, 20-μs peak transient

surges, a clamping voltage of 30 V (15.1 V for 200/300 units), and a

peak energy dissipation of 0.1 Joules.

Table 3 - Product series summary

Part number IND option Part number IND option

SSU2-100 no

SSU2-100IND yes

DSU2-100 no DSU2-400 no

DSU2-100IND yes DSU2-400IND yes

QSU2-100 no QSU2-400 no

QSU2-100IND yes QSU2-400IND yes

ESU2-100 no ESU2-400 no

ESU2-100IND yes ESU2-400IND yes

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B&B Electronics QSU2-400-EMB Bedienungsanleitung Seite 6