EPSON Stylus Color 900 Revision C
Product Description Interface 28
1.3.3 Mac Serial Interface
Standard: Based on RS-423
Synchronization: Synchronous
Bit Rate: Approximately 1.8 Mbps
Handshaking: X-ON/X-OFF, DTR Protocol
Word Format: Start Bit = 1 bit
Data Bit = 8 bit
Parity Bit = No parity bit
Stop Bit = 1 bit
Adaptable Connector: 8-pin mini circular connector
Recommended Cable:Apple System Peripheral-8 Cable
Connector pin assignment and signal:See Table 1-14.
Table 1-14. Pin Assignment
X-ON/X-OFF, DTR protocol:See Table 1-15.
Table 1-15. X-On/X-Off and DTR Protocol
Pin No.
Signal
Name
I/O Description
1 SCLK O Synchronous clock signal
2 CTS I Clear To Send
3 TXD- O Transmit Data (-)
4 SG I (Signal Ground)
5 RXD- I Receive Data (-)
6 TXD+ O Balanced Transmit Data (+)
7 DTR O Data Terminal Ready
8 RXD+ I Balanced Receive Data (+)
State Buffer Space X-ON/X-OFF DTR
Busy Less than 3072 bytes Send X-OFF code OFF
Ready More than 5120 bytes Send X-ON code ON
