Interface Signal; Usb Interface; Parallel Interface - SNBC BTP-M280 User Manual

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:

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
1 H
2 H
3 H
4 H
5 H
6 H
7 H
8 H
9 H
10 P
11 P
12 P
13 P
14 H
15
16
17
18 P
Caution：
H means signal source from a host, and P means signal source from printer.
Pin
1
2
3
4
Signal definition
nStrobe
Data 0 (Least Significant Bit)
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7 (Most Significant Bit)
Ack
Busy
PError
Select
nAutoLF
Not defined
Logic Gnd
Chassis Gnd
Peripheral Logic High
Lead
VCC
DATA-
DADA+
GND
Pin Signal resource
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
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BTP-M280 User's Manual
Signal definition
Signal Ground
Signal Ground
Signal Ground
Signal Ground
Signal Ground
Signal Ground
Signal Ground
Signal Ground
Signal Ground
Signal Ground
Signal Ground
Signal Ground
H nInit
P nFault
Signal Ground
Not defined
Not defined
H nSelectIn