This section summarizes the specific power management requirements for modems. See also the specific power management interface requirements for the bus (PC Card, PCI, IEEE 1394, or USB) as defined in Part 3 of this guide.
27. Compliance with "Device Class Power Management Reference Specification"
| Required |
The "Device Class Power Management Reference Specification" for the Communication Device Class was developed with device manufacturers. This specification provides definitions of the OnNow device power states (D0 – D3) for these devices, including modems. The specification also covers device functionality expected in each power state and the possible Wakeup event definitions for the class. Power states D0 and D3 are required. Other power states are recommended.
28. Support Wakeup Events defined in "Device Class Power Management Reference Specification"
| Required |
For PC 97, a required feature for modems is the ability to cause a Wakeup event as defined in the "Device Class Power Management Reference Specification" for communications devices.