Specifications

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.