Advantech PCI-1610 User Manual download pdf (Page 42)

PCI/ PCI Express-Communication User Manual 32

receive data later. Another port, which operates as passive loopback, will retransmit

any received data on the Rx line and then send these data onto the Tx line. These

two modes will form a logical loop and help to verify the integrity of data transmitted

over the communication link.

4.3.4 Port Status

DTR (data-terminal-ready)

DSR (data-set-ready)

RTS (request-to-send)

CTS (clear-to-send)

CD (carrier-detect)

For RS-232 specifications, DTR and RTS are for output signals and can be toggled

on and off by double-clicking the labels (such as DTR, DSR, RTS, CTS, CD) under

the red/green marks. However, if you are using RTS/CTS for flow control to run the

test, you will see the RTS mark appear in black. This indicates that the RTS can no

longer be toggled on/ off since it is controlled by driver itself.

4.3.5 Message Logo

On the Message Logo area, you can see the relevant messages about the port(s)

you have selected.

For information about specific messages in this area, please refer to Section 4.5,

Messages on the Status Bar and Message Logo area.

4.3.6 Tx Slide Bar

The Tx Slide Bar allows you to control the overall system loading. You can adjust the

transmission rate of your port(s) from 0% to 100%. Just drag the slide button along

the track to adjust the transmission rate.

4.3.7 Performance Listing Area

On the performance listing area, you can see the relevant information, such as Rx

Length (received packet byte length), Bytes/Sec (transmission rate) and Last Abnor-

mal Status of each port running a test.

A black mark represents that the function is controlled by the driver itself and there-

fore not controllable by software.

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Advantech PCI-1610 User Manual Page 42