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Table 1. Duplex Settings
Host
Computer
Full
Full
Half
Half
Sometimes you need to have a particular combination of settings.
example,' the 2 color VIC option requires both computers to operate at
half duplex.
To make changes, refer to the host computer's reference
manual.
3.
Word length - this controls how many bits are in each character.
Most computers use 7 or 8 bits.
4.
Stop Bits - Some computers require that blank bits be sent after
each character to signal the end of a character.
computer gets 8 bits of data for each character; this makes a total
ten bits including the start and stop bit.
per second.
5.
Parity - Some computers check for transmission errors by setting
the highest bit in each character in a certain way.
the total number of "on" bits in each character should always be an
even number; in odd parity, the number of "on" bits is odd.
parity always leaves the highest bit off, and mark parity leaves the
bit "on".
Incorrect parity causes many characters to be printed incorrectly.
AUTCMODEM
Your
Computer
Full
Half
Full
Half
Your
Screen
Normal
Double characters
on screen
Only see the
mainframe characters
Normal
Normally, a 300 baud
300 baud is 30 characters
Example
HELLO
HHEELLLLOO
1st character
is yours
2nd is host's
For
of
In even parity,
Space
!fege 14
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