Samsung SCX-6545N - Page 58

Finisher
Service Manual
2-46
Samsung Electronics
2.3.1.3 Interface between Finisher and Engine
< Block Diagram >
< Protocol Specication >
- Transmission System: Serial, UART, Full Duplex
- Voltage Level: TTL Level (3.3V)
- Baud Rate: 38,400 bps 3%
- Data Length: 8 bit
- Stop bit: 1 bit
- Parity: No
UART
TTLTTL
TTL
TTL
UART
TxDR xD
RxDT xD
Power
nFIN_RESET
[ Engine ]
[ Finisher ]
FIN_DETECT
3.3V
5.0V
24.0V