RP-700User’s Manual
6 Interface signal
6.1 Serial interface
The serial interface of the printer is compatible with RS-232 standard, and its interface socket
is D-SUB25 socket.
Pin
Signal
Signal definition
Function
1
FG
—
House ground
2
TXD
Output
Data output
3
RXD
Input
Data input
5
NC
—
Not connected
6
DSR
Input
Data device is ready
7
SG
—
Signal ground
8
-
19
NC
—
Not connected
4,20
DTR
Output
Require to send
21
-
25
NC
—
Not connected
Fig. 6.1-1 Serial interface definition
User can query interface setting status via printing configuration sample. The default settings of
serial interface are as follows:
Baud rate: 115200bps; Data bits: 8; Parity: none; Stop bit: 1; Handshake: DTR/DSR.
6.2 MFI (BT) interface
Interface features
Class1.5 support
Support Profiles: SPP,SPPLE
BT Standard: V4.0 specification
Frequency Band: 2.402~2.480 GHz
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