BTP-R990 User’s Manual
- 15 -
6.2 Serial interface
The serial interface of the printer is compatible with RS-232, its connector is 25PIN female D type.
PIN No.
Signal definition
PIN1 Frame
Ground
PIN2 TXD
PIN 3
RXD
PIN 4
RTS
PIN 5
Not connected
PIN6 DSR
PIN 7
Signal Ground
PIN 8~19
Not connected
PIN 20
DTR
PIN 21~25
Not connected
User can query interface settings status via printing self-test page. The default setting is as follows:
Baud rate: 19200bps; Data bit: 8; Parity bit: none; Stop bit: 1; Handshake: DTR/DSR
6.3 USB interface
1) Parameters
Data transmission: Support USB2.0 protocol
Connector (Printer side): USB A type socket. Support and pass USB HUB
2) Interface signal definition and function
PIN
Signal Name
Description
1 VBUS
+5V
2
DATA-
Printer data transmit line (minus)
3
DATA+
Printer data transmit line (plus)
4 GND
Ground
3) Interface connector
6.4 Ethernet interface
1) Interface
features
¾
Support of 10BASE-T communication
¾
Compatible with Ethernet II standard frame type
¾
Indicator shows network connecting status and data transmission status
¾
Supports 9100 port print
¾
Supports status back
¾
Supports parameter configuration
¾
Supports firmware update on-line
