BTP-M280 User’s Manual
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6 Interface Signal
The BTP-M280 can be connected with other devices via USB, parallel, serial, Ethernet and WLAN
interface, USB interface is a fixed interface of the printer and other interfaces are optional.
6.1 USB interface
The printer USB interface supports USB1.1 protocol, of which the outlet is USB A type.
Interface signal is defined as below:
Pin
Lead
1 VCC
2 DATA-
3 DADA+
4 GND
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 resource
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.
