PEB24901HV12 Lantiq, PEB24901HV12 Datasheet - Page 48

• Manufacturer Part Number: PEB24901HV12
• Manufacturer: Lantiq

Specifications of PEB24901HV12

• Lead Free Status / Rohs Status: Supplier Unconfirmed

3.4.2.2
ARU
RDS
AIU
DA
DIU
RSYU
Semiconductor Group
1000 Activation Request Upstream. The downstream unit of the IOM-2
0111 Running digital sum is readable. The downstream unit of the IOM-2
1100 Activation Indication Upstream. The downstream unit of the IOM-2
0001 Deactivation Acknowledge. DA informs the upstream unit that the
1111 Deactivation upstream. DIU informs the upstream unit that the
0100 Resynchronizing Indication upstream. RSYU informs the upstream
IOM-2 C/I codes for (DE-)Activation Upstream
interface has detected an awake signal on the line or requests
activation, if it is a layer 2 device.
interface (usually a layer 1 device) has detected the line signal which
informs that the whole Uk0 interface is synchronized (INFO U1 or U3
detected on Uk0). At this point, the counter of frames with detected
code violations is enabled.
interface (usually a layer 1 device) has detected the line signal which
informs that the whole transmission line to the TE is synchronized
(INFO U3 on Uk0). In the exchange, the IEC switches itself to the
transparent state and controls the transition to the transparent state of
the other layer 1 devices. It informs layer 2 that the whole line is now
transparent.
IEC is deactivating the transmission line downstream. This indication
is given out to overwrite a possible DIU code in the C/I-channel
upstream to enable the ICC to detect the change to DIU which follows
afterwards.
transmission line downstream is deactivated. The downstream unit is
in the power-down state. The transmitter is disabled, but awake
signals may be detected.
unit that the downstream unit isn’t synchronous. RSYU is given, if the
IEC (LT or LT-RP) was in the fully activated state and has lost
synchronization afterwards (but transmission of INFO U4 will not be
interrupted).
47
PEB 24901
02.95