Epson 1240U - Interface Specifications; USB Specifications

EPSON Perfection 1240U Revision A
Product Description Interface Specifications 12
1.3 Interface Specifications
This section provides specifications of the USB, the only interface supported by
the Perfection 1240U and the Perfection 1240U PHOTO.
1.3.1 USB Specifications
Any items not included in this specification shall be in compliance with
Universal Serial Bus Specification Revision 1.1.
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Configuration: See Table 1-2.
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Electric specification: Compliant to Full Speed mode (12Mbit/s) of
Universal Serial Bus Specification Revision
1.0.
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Connector: One Receptacle (Series B)
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Connector Pin Assignment: See the following figure.
Figure 1-3. Connector Pin Location
Table 1-1. Connector Pin Assignment
Table 1-2. Configuration
Pin No. Signal
1VCC
2 -Data
3+Data
4 GND
1
2
3
4
Element Description
Device
• Class: Vendor specific
• Subclass: Vendor specific
• Protocol: Vendor specific
• Maximum packet size for endpoint 0: 64bytes
• Vendor ID: 0x04B8 (Seiko EPSON Corp.)
• Product ID: 0x010B
• Number of possible configurations: 1
Configuration
• Number of interfaces supported by this configuration: 1
• Characteristics: Self-powered
• Remote wake up feature: Not supported
• Maximum of possible consumption: 2mA
Interface
• No Alternate setting
• Number of endpoints used by
this interface (excluding endpoint 0): 2
• Class: Vendor specific
• Subclass: Vendor specific
• Protocol: Vendor specific
Endpoint 1
• Bulk IN transfer
• Maximum data transfer size: 64 byte
Endpoint 2
• Bulk OUT transfer
• Maximum data transfer size: 64 byte
String
Descriptor
• iManufacturer: “EPSON”
• iProduct: “Perfection 1240U”