Epson Stylus Pro 4450 - IEEE1394 Interface; Protocol; Chapter 1 Product Description

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