Table of Contents
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B. Making Your Own Cable
Pin Functions When In
DTE Mode
B-4
The following table explains the function of the pins on the Terminal and
Remote ports when connected to DTE equipment.
Pin
Signal
1
Ground
2
Receive Data
3
Transmit Data
4
Request to Send
5
Clear to Send
6
Data Set Ready
7
Signal Ground
8
Data Carrier
9-19
No Connection
*
Data Terminal
20
21-25
No Connection
*
If this line is not connected, the programmer will consider it high and will function
normally.
Description
Provides a safety ground connection.
Carries the received data from the DTE
device to the programmer.
Carries the transmitted data from the
programmer to the DTE device.
This line is held high by the programmer.
A high on this line from the programmer
means that it is ready to receive data.
(Used for hardware handshaking.)
This line is held high when the
programmer is ready to transfer data.
Provides a reference ground for all signals
on the cable.
This line is held high by the programmer.
A high on this line enables the
programmer to transmit data. (Used for
hardware handshaking.) A low inhibits
data transmission from the programmer.
UniSite-xpi User Manual
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