PEF24901HV22XP Lantiq, PEF24901HV22XP Datasheet - Page 61

• Manufacturer Part Number: PEF24901HV22XP
• Manufacturer: Lantiq

Specifications of PEF24901HV22XP

• Control Interface: HDLC
• Lead Free Status / Rohs Status: Compliant

RSY
UAI
Signals on U-Interface
The signals U0, U2W, U2, U4H, U4 and SP are transmitted on the U-interface. They are
defined in detail in
Signals on IOM-2
The Data (B+B+D) is set to all ’1’s in all states besides the states listed in
3.5.11.3 State Description
In this section each LT state is described with its function.
The C/I-channel output and the transmitted signal elements on U are already specified
by the state diagram. Below they are only referred to, if within a state there are more than
one of them specified. In this case, the C/I-channel output and the transmitted signal
element depend on the given inputs.
Acknowledge Sent / Received
If awaking the U-transceiver has received the acknowledge signal. If being awoken the
U-transceiver has sent the acknowledge. In both cases the U-transceiver waits for a
possible repetition or time-out.
Awake Signal Sent
The U-transceiver is awaking the U-interface and waits for the acknowledge by the NT
or for the time-out (12 ms) after sending the awake signal.
Deactivation Acknowledge
In the Deactivation Acknowledge state no signal (signal U0) is transmitted on the U-
interface. The U-transceiver is ready to enter the power-down state.
Data Sheet
Resynchronization Indication
RSY informs that the U-transceiver is not synchronous. RSY is issued if the
U-transceiver is in one of the fully activated states and has lost
synchronization afterwards (transmission of U signal will not be
interrupted).
U-Activation Indication
The U-transceiver has detected U1 or U3 indicating that the transmission
line between the two U-interface stations is now synchronized.
Table 12 "4B3T Signal Elements" on Page
62
Functional Description
52.
Table
PEF 24901
2002-09-30
DFE-T
16.