2.
Duplex
—
A computer in full duplex mode will
"echo" back to
the
sender's
screen all
signals
it receives. This checks infor-
mation against loss or alteration. It is similar to speaking to
someone who repeats every word you
say.
The half duplex mode of operation does not "echo". It is similar
to normal conversation between two people.
Below is
a
table of
duplex
combinations
between two compu-
ters and the results you can expect on your screen.
Table 1 . Dublex
Settings
Host
Your Your
Screen
Computer
Computer
Full
Full
Normal
Ex: HELLO
Full
Half
Double characters on
screen
Ex:
HHEELLOO
1 st
character is yours
2nd character is
the host
Half
Full Only see
the Mainframe
characters
Half Half
Normal
Sometimes
it is desirable to
have
a
particular
combination of
settings (ex:
2
color VIP, nptionjequires that
hoth
mmpntarft-
operate
aLhalf
duplex).
To
make changes
refer
to
the host
'computer's reference manual.
14
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