Interface Connection And Signal Function; Serial Connection; Parallel Interface; Parameter - SNBC BTP-M300 Service Manual

3.2.2 Interface connection and signal function

Pin
1
2
3
4
6
7
20

3.2.3 Serial connection

Host
TXD---------------RXD
RXD---------------TXD
DSR---------------DTR
CTS---------------RTS
RTS---------------CTS
DTR---------------DSR
FG -----------------FG
SG ----------------SG

3.3 Parallel interface

Parallel interface works under IEEE1284 compatible mode and byte mode.

3.3.1 Parameter

Data transmission:
Synchronized mode:
Handshaking mode:
Handshaking pressure:
Connector:

3.3.2 Time Sequence of the Parallel Interface Module

Signal Name Signal Direction
FG
TXD
RXD
RTS
DSR
SG
DTR
Printer
8 bit parallel
Externally supplied nStrobe signals
Busy Signal
TTL compatible
IEEE 1284-B(CENTRONICS) socket
Time Sequence of Parallel Interface (compatible mode)
—
OUTPUT
INPUT
OUTPUT
INPUT
—
OUTPUT
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BTP-M300 Service Manual
Function
Frame ground
Data output
Data input
Request to send
Host ready
Signal ready
Data terminal ready