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Additional Communication Attributes
The following communication attributes are for the 3151, 3161, and 3164 terminals.
Communication
Setup
Attributes
3151
/11/31/41
Settings
3151
/51/61
Settings
3161/3164
Settings
Description
Operating mode Echo Echo Echo Data entered from the
keyboard on the terminal is
sent to the system unit for
translation and then sent back
to the display screen.
Sometimes called
conversational mode.
Line speed 9600
bps
9600
bps
9600
bps
Uses the 9600 bps (bits per
second) line speed to
communicate with the system
unit.
Word length
(bits)
8 8 8 Selects eight bits as a data
word length (byte).
Parity No No No Does not add a parity bit, and
is used together with the word
length attribute to form the
8-bit data word (byte).
Stop bit 1 1 1 Places a bit after a data word
(byte).
Turnaround
character
CR CR CR Selects the carriage return
(CR) character as the line
turnaround character.
Interface EIA-232 EIA-232 EIA-232 Uses the EIA-232 interface
protocol.
Line control IPRTS IPRTS IPRTS Uses the Permanent Request
to Send (IPRTS) signal to
communicate with system unit.
Break signal
(ms)
500 500 500 The terminal sends a Break
Signal to the system unit within
500 ms after the Break key is
pressed.
Send null suppress On On Trailing null characters are not
sent to the system unit.
Send null On Trailing null characters are
sent to the system unit.
5-6 7046 Model B50 User's Guide