Ieee1394 Interface; Protocol; Chapter 1 Product Description - Epson Stylus Pro 4400 Service Manual
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EPSON Stylus Pro 4400/4450/4800/4880/4880C
1.6.2 IEEE1394 Interface
Stylus Pro 4400/4800 only
C H E C K
P O I N T
FEATURES
IEEE Std.1394-1995, 1394a-2000 compliant
400Mbps
1port (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 1-49. Signal assignment and signal definition of input connector pin
Contact number
Signal name
1
VP
2
VG
Product Description
Comment
Cable power
Cable ground
Table 1-49. Signal assignment and signal definition of input connector pin
Contact number
Signal name
3
4
5
6
PROTOCOL
SB-2 (ANSI NCITS 325-1998) compliant
EP-PPDT (Based on IEEE 1394.3 specification)
Interface
Comment
TPB*
Strobe on receive, data on transmit
(differential pair)
TPB
TPA*
Data on receive, strobe on transmit
(differential pair)
TPA
Revision C
107
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