Ieee1394 Interface - Epson Stylus Pro 7400 Service Manual

EPSON Stylus Pro 7400/7800/9400/9800

1.6.2 IEEE1394 Interface

FEATURES
IEEE Std.1394-1995,1394a-2000 compliant
400 Mbps
1 port (Standard 6-pin receptacle)
Power Class: POWER_CLASS=000
Node does not need power and does not repeat power
Bi-directional data communication between the IEEE 1394 equipped host and
the printer
SPECIFICATIONS
Data transmission: Half-duplex, Data/Strobe differential
Synchronization: DS-Link bit level encoding
Encode/Decode: DS-Link bit level encoding
Connector: IEEE 1394-1995 compliant plug (6 contacts)
SIGNAL ASSIGNMENT AND SIGNAL DEFINITION OF INPUT CONNECTOR PIN
Table 1-67. Signal Assignment and Signal Definition of Input Connector Pin
Pin No. Signal name
1 VP Cable power
2 VG Cable ground
3 TPB* Strobe on receive, data on transmit (differential pair)
4 TPB
5 TPA* Data on receive, strobe on transmit (differential pair)
6 TPA
Product Description
Function description
PROTOCOL
SB-2 (ANSI NCITS 325-1998) compliant
EP-PPDT (Based on IEEE 1394.3 specification)
Interface
Revision B
140