USB COMMUNICATIONS

This device conforms to the USB specification revision 2.0. This device also conforms with the Human Interface Device (HID) class specification version 1.1. The device communicates to the host as a vendor defined HID device. The details about how the relay status and commands are structured into HID reports follow later in this section.

It is strongly recommended that application software developers become familiar with the HID specification and the USB specification before attempting to communicate with this device. This document assumes that the reader is familiar with these specifications. These specifications can be downloaded free from www.usb.org

.

This is a full speed USB device. This device has a number of programmable configuration properties. These properties are stored in non-volatile EEPROM memory. These properties can be configured at the factory or by the end user. More details about these properties can be found later in this document in the command section.

The device does not support remote wakeup.

This device is powered from the USB bus. Its vendor ID is 0x0801 and its product ID is 0x008C

DEVICE DESCRIPTOR

Item

Value(Hex)

bLength

12

bDescriptorType = Device

01

bcdUSB = version 2.0

0200

bDeviceClass = in Interface Descriptor

00

bDeviceSubClass

00

bDeviceProtocol

00

bMaxPacketSize

08

idVendor

0801

idProduct

008C

bcdDevice = 1.00

0100

iManufacturer

01

iProduct

02

iSerialNumber

00

bNumConfigurations

01

3

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Ringdale 1543 manual Device Descriptor, ValueHex