Epson TM T70 Technical Reference Manual page 70

Pin Source
28
29
30
31 Host
32 Printer
33
34 Printer
35 Printer
36 Host
NC: None Connect
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
CAUTION
• 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 0.5ms 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.
70
Compatibility
Mode
GND
GND
GND
Init
Fault
GND
DK_STATUS
+5V
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