User manual

BTP-M280 User’s Manual
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6.2 Parallel interface
The parallel interface of printer is bi-directional and supports the
BUSY/ACK handshake protocol and the nibble protocol. The
interface outlet is 36PIN CENTRONICS.
Pin
Signal
resource
Signal
definition
Pin
Signal
resourc
e
Signal definition
1 H nStrobe 19 Signal Ground
2 H
Data 0 (Least
Significant Bit)
20 Signal Ground
3 H Data 1 21 Signal Ground
4 H Data 2 22 Signal Ground
5 H Data 3 23 Signal Ground
6 H Data 4 24 Signal Ground
7 H Data 5 25 Signal Ground
8 H Data 6 26 Signal Ground
9 H
Data 7 (Most
Significant Bit)
27 Signal Ground
10 P Ack 28 Signal Ground
11 P Busy 29 Signal Ground
12 P PError 30 Signal Ground
13 P Select 31 H nInit
14 H nAutoLF 32 P nFault
15 Not defined 33
Signal Ground
16 Logic Gnd 34 Not defined
17 Chassis Gnd 35 Not defined
18 P
Peripheral
Logic High
36 H nSelectIn
Caution
 H means signal source from a host, and P means signal source
from printer.