Star Micronics SP2000 Betriebsanweisung
– 135 –
APPENDIX
Pin No.
Direction
Compatibility Mode
Nibble Mode
Byte Mode
Signal Name
Signal Name
Sginal Name
31
In
nInit
nInit
nInit
32
Out
nFault
nDataAvail/Data0,4
nDataAvail
33
EXT GND
—
—
34
Out
Compulsion Status
—
—
35
Out
+5V
—
—
36
In
nSelectIn
1284Active
1284Active
Note: 1. The prefix “n” on the signal name refers to low active signals.
If the host does not have any one of the signal lines listed above,
two-way communication fails.
two-way communication fails.
2. For interfacing, signal lines should always use twisted pair cables
with the return sides connected to the signal ground level.
3. Cautions when resetting the printer using the nInit signal (#31 pin).
Reset can be made from #31 pin (nInit signal) of the interface when
the DIP switch 1-1 is set to on. (Factory setting is on.)
In addition, when reset has been enabled by #31 pin (nInit signal),
it can be set to reset when the following conditions have been
established: DIP switch 1-2 has been set to off, #36 pin (nSelectIn/
1284 active signal) is low, and #31 pin (nInit signal) is low.
the DIP switch 1-1 is set to on. (Factory setting is on.)
In addition, when reset has been enabled by #31 pin (nInit signal),
it can be set to reset when the following conditions have been
established: DIP switch 1-2 has been set to off, #36 pin (nSelectIn/
1284 active signal) is low, and #31 pin (nInit signal) is low.
4. During factory output, IFEE 1284 printer device ID reply will be
“Invalid.” To get the device ID, change memory switch 6-C to
“Valid.” For instructions on setting the memory switch, please
refer to the separate Programmer’s Manual.
“Valid.” For instructions on setting the memory switch, please
refer to the separate Programmer’s Manual.