Star SP298 SERIES User Manual page 137

Pin No. Direction
31 In
32 Out
33
34 Out
35 Out
36 In
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.
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 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 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 DIP switch 6 to "OFF
(Valid)."
Compatibility Mode
Signal Name
nInit
nFault
EXT GND
Compulsion Status
+5V
nSelectIn
Nibble Mode
Signal Name
nInit
nDataAvail/Data0,4
—
—
—
1284Active
134
Byte Mode
Signal Name
nInit
nDataAvail
—
—
—
1284Active