Operation Manual

A-12 Technical Specifications
IEEE 1394 Scanner I/F Card
Connector pin signal layout:
Interface type: IEEE 1394-1995 compatible
Data transfer method: Half-duplex Data/Strobe differential
serial
Synchronization method: Clock synchronization with DS-Link
Encoding/decoding: DS-Link
Logic level: 3.3 V
Compatible connectors: IEEE 1394-1995 compatible
Pin number Signal name Function
1 VP Cable power supply
2 VG Cable ground
3 TPB*
Strobe during receipt, data during
transmission (differential pair)
4TPB
5 TPA*
Data during receipt, strobe during
transmission (differential pair)
6TPA
Power class: Power class code 100
No power supply from external sources
Fitted with a repeat function with bus
power