PEB3081FV14XP Lantiq, PEB3081FV14XP Datasheet - Page 53

• Manufacturer Part Number: PEB3081FV14XP
• Manufacturer: Lantiq

Specifications of PEB3081FV14XP

• Number Of Line Interfaces: 1
• Control Interface: HDLC
• Lead Free Status / Rohs Status: Compliant

Preliminary
3.3.10
The SBCX-X provides test and diagnostic functions for the S/T interface:
– The internal local loop (internal Loop A) is activated by a C/I command ARL or by
– The external local loop (external Loop A) is activated in the same way as the internal
– In remote line loop (RLP) received data is looped back to the S/T interface. The D-
Figure 27
Data Sheet
setting the bit LP_A (Loop Analog) in the TR_CMD register if the layer-1 statemachine
is disabled.
The transmit data of the transmitter is looped back internally to the receiver. The data
of the IOM-2 input B- and D-channels are looped back to the output B- and D-
channels.
The S/T interface level detector is enabled, i.e. if a level is detected this will be
reported by the Resynchronization Indication (RSY) but the loop function is not
affected.
Depending on the DIS_TX bit in the TR_CONF2 register the internal local loop can be
transparent or non transparent to the S/T line.
local loop described above. Additionally the EXLP bit in the TR_CONF0 register has
to be programmed and the loop has to be closed externally as described in
The S/T interface level detector is disabled.
This allows complete system diagnostics.
channel information received from the line card is transparently forwarded to the
output IOM-2 D-channel. The output B-channel information on IOM-2 is fixed to ‘FF’
while this test loop is active. The remote loop is programmable in TR_CONF2.RLP.
Test Functions
SCOUT-S(X)
External Loop at the S/T-Interface
SR1
SR2
SX1
SX2
53
Description of Functional Blocks
100
100
PEB 3081
PEF 3081
Figure
2000-09-27
27.
H