Epson FX-85 User Manual - Page 90
On-line, Slct In Dc1/dc3, Error, Acknlg, Data Entry
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Table K-2. Signal interrelations On-Line OFF ON ON ON SLCT IN DC1/DC3 HIGH/LOW DC1/DC3 HIGH DC1 DC3 LOW DC1//DC3 ERROR LOW HIGH HIGH HIGH BUSY HIGH LOW/HIGH same same ACKNLG Not generated Generated after data entry same same DATA ENTRY Disabled Enabled (normal entry) Enabled* Enabled (normal entry) *Data entry will be acknowledged, but the input data will be lost until DC1is input. Note: ERROR status is assumed to result only in Off-Line state, and the ERROR status does not always mean SLCT IN.
Table K-2. Signal interrelations
On-Line
SLCT IN DC1/DC3
ERROR
BUSY
ACKNLG
DATA ENTRY
OFF
HIGH/LOW
DC1/DC3
LOW
HIGH
Not generated
Disabled
ON
HIGH
DC1
HIGH
LOW/HIGH
Generated after data entry
Enabled (normal entry)
ON
DC3
HIGH
same
same
Enabled*
ON
LOW
DC1//DC3
HIGH
same
same
Enabled (normal entry)
*Data entry will be acknowledged, but the input data will be lost until DC1is input.
Note: ERROR status is assumed to result only in Off-Line state, and the ERROR status does not always mean SLCT IN.