Epson TM-T70II Technical Reference Manual page 110

Pin Source
28
29
30
31 Host
32 Printer
33
34 Printer
35 Printer
36 Host
NC: Not Connected
ND: Not Defined
 A signal name with a rule above it indicates an "L" active signal.
 Bidirectional communications cannot take place, unless all signal names for both sides
 Connect all signal lines using a twisted-pair cable. Connect the return side to the signal
 Make sure the signals satisfy electrical characteristics.
 Set the leading edge and trailing edge times to 0.5 s or less.
 Do not ignore Ack or BUSY signals during a data transfer. Ignoring such signals may
 Make the interface cables as short as possible.
110
Compatibility
Mode
GND
GND
GND
Init
Fault
GND
DK_STATUS
+5 V
SelectIn
correspond to each other.
ground level.
result in data corruption.
Nibble Mode
GND GND
GND GND
GND GND
Init Init
DataAvail/Data0,4 DataAvail
ND ND
ND ND
ND ND
1284-Active 1284-Active
Byte Mode