Epson TM-T70II Technical Reference Manual page 99

Pin Source
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
correspond to each other.
• Connect all signal lines using a twisted-pair cable. Connect the return side to the signal
ground level.
• Make sure the signals satisfy electrical characteristics.
• Set the leading edge and trailing edge times to 0.5 μs or less.
• Do not ignore Ack or BUSY signals during a data transfer. Ignoring such signals may result in
data corruption.
• Make the interface cables as short as possible.
Compatibility Mode
Init Init
Fault DataAvail/Data0,4
GND ND
DK_STATUS ND
+5 V ND
SelectIn 1284-Active
Nibble Mode
Init
DataAvail
ND
ND
ND
1284-Active
Appendix
Byte Mode
99