pef82902 Infineon Technologies Corporation, pef82902 Datasheet - Page 83

• Manufacturer Part Number: pef82902
• Description: 4b3t Second Generation Modular Isdn Nt Intelligent Extended
• Manufacturer: Infineon Technologies Corporation

PEF 81902
Functional Description
Acknowledging a Wake-Up Call
If a deactivated device detects an awake signal on U, an acknowledge signal is sent out.
After that, the U-transceiver waits for a possible repetition of the awake signal (in case
the acknowledge hasn’t been recognized).
If no repetition is found, the awoken U-transceiver starts sending U2 after 7 ms from
detecting the awake signal. If a repeated awake signal is found, the procedure in the
awoken U-transceiver starts again.
Data Sheet
69
2001-11-12