pef80902 Infineon Technologies Corporation, pef80902 Datasheet - Page 32

• Manufacturer Part Number: pef80902
• Description: T-sminto 4b3t Second Gen. Modular Isdn Nt
• Manufacturer: Infineon Technologies Corporation

The state machines are designed to cope with all ISDN devices with IOM
interfaces. Undefined situations are excluded. In any case, the involved devices will
enter defined conditions as soon as the line is deactivated.
2.3.7.2
For the awake process two signals are defined’ U1W’ and ’U2W’. Depending on the call
direction (up-, downstream) U1W and U2W are interpreted as awake or acknowledge
signals (see figures below).
•
Figure 6
•
Figure 7
Data Sheet
Awake Protocol
NT
LT
NT
LT
Awake Procedure initiated by the LT
Awake Procedure initiated by the NT
INFO U2W
2.133 ms
INFO U1W
2.133 ms
6 ms
INFO U1W
2.133 ms
INFO U2W
2.133 ms
12 ms
7 ms
13 ms
7 ms
24
13 ms
INFO U2 (A)
INFO U2 (A)
INFO U1A
Functional Description
INFO U1A
ITD06385.vsd
ITD06386.v sd
®
PEF 80902
-2 standard
2001-11-12