Multi-Tech Systems DT101/xx, DT102/xx owner manual Out

DataTalker Owner’s Manual

The Echo option enables data entered on the channel device keyboard to be returned to the channel device monitor. The purpose of this option is so that an operator will not experience undue delays in seeing entered data appear on their monitor. The default condition for the echo option is off.

The Pacing option controls the data flow to the channel device. This option only applies to the async mode of operation. Pacing is necessary when the flow of data to a device operating on the data channel is more than it can process. If the channel device cannot process the volume of data sent to it, then the pacing option should be turned on. The pacing method used is determined by the type of flow control. The default condition is for this option to be turned off.

The EIA Pass Through option allows the channel device to receive EIA control signals through the DataTalker. This option only applies during the async mode of operation. Since, in normal interactive operation, the existence of a DataTalker should be transparent to the user, the EIA pass through option allows a terminal to operate as if it were connected directly to a communications line and not through a DataTalker. This is done by allowing selected pins (signals) on one DataTalker to be passed through to selected pins on a remote DataTalker. The default condition is for this option to be turned off. The following diagram shows how the EIA pass through option routes the selected signals:

DataTalker

A

IN 4

IN 20

IN 25

OUT 8

OUT 6

UT 22

Composite Link

Facility

DataTalker

B

8 OUT

6 OUT

22 OUT

4 IN

20 IN 25 IN

The Pass Xon option enables the XON/XOFF flow control signals to be passed on to the channel device. This option only applies during the async mode of operation. This option has to be used in conjunction with the software-based XON/XOFF flow control option. The default condition is for this option to be turned off, and normally it should remain off.

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