Epson STYLUS 3000 - Mac Serial Interface

Product Descriptions
Rev. A
1-2
0
1.4.2 Mac Serial Interface
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Standard
RS-423 compliant
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Synchronization
Synchronous
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Bit rate
Approximately 900 Kbps, 1.8 Mbps
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Word format
Start bit 1 bit
Data bit 8 bit
Parity bit No parity bit
Stop bit1 bit
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Handshaking
X-ON/XOFF, DTR protocol
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Adaptable connector
8-pin mini circular connector
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Recommended I/F cable
Apple System Peripheral-8 cable
Pin No. Signal Name I/O Function Description
1 SCLK O Synchronous clock
2 CTS I Clear to send
3 TxD- O Transmit data -
4 S.G. I Signal Ground
5 RxD- I Receive data -
6 TxD+ O Balanced Transmit +
7 DTR O Data terminal ready
8 RxD+ I Balanced Receive +
State Buffer space X-ON/X-OFF DTR
Busy Less than 1024 bytes Send X-OFF code Off
Ready More than 2048 bytes Send X-ON code On
Table 1-24. Connector Pin Assignment for Serial Interface
Table 1-25. X-ON/X-OFF, DTR Protocol
1
2
34
5
6
7
8
Figure 1-9.
Serial Interface Connector Pin Assignment