cx29503 Mindspeed Technologies, cx29503 Datasheet - Page 123

• Manufacturer Part Number: cx29503
• Description: Cx29503 Broadband Access Multiplexer Data Sheet
• Manufacturer: Mindspeed Technologies

6.1
Table 6-1. STS-1 Path Conditioning
29503-DSH-002-B
FOOTNOTE:
(1)
(2)
(3)
UNEQ-P
Defect
PLM-P
LOP-P
TIM-P
If an UNEQ-P or PLM-P defect occurs, the CX29610 automatically generates AIS-P, and the CX29503 detects the AIS-P and
performs the processing indicated for AIS-P.
If a TIM-P defect occurs, the CX29610 reports the defect in a register and the CX29610 driver software enables AIS-P.
If an LOM defect (i.e., 5 consecutive H4 values are not in the correct sequence) occurs, the CX29503 reports the defect in a
register.
AIS-P
AIS-L
LOM
LOS
LOF
Reported in register
RDI-P and RDI-L
RDI-P and RDI-L
RDI-P and RDI-L
Conditioning
STS-1 Path Conditioning
RDI-P
RDI-P
RDI-P
RDI-P
None
Path
CX29610 Processing
Action to Upstream
6.0 Path Conditioning
This section discusses the path conditioning (also called alarm generation) required
on the receive (downstream) and transmit (upstream) data paths. Path conditioning is
dictated by international standards. The detection is based on the monitoring of the
receive data. The path conditioning consists of both software processing by the CSP
and automatic processing within the logic of the CX29503 and CX29610.
In the CX29503, all defects are detected by the hardware and all failures are
integrated by the CSP.
Table 6-1
performed by the CX29610. The CX29610 can be programmed to automatically
perform the upstream path conditioning. On the CX29503, an auto-insertion function
is provided for downstream path conditioning.
lists the STS-1 Path Conditioning. The upstream path conditioning is
Mindspeed Technologies™
Latency
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Preliminary Information
Conditioning
Action to Downstream (DS3)
Reported in
register
N/A
N/A
N/A
Path
N/A
AIS
AIS
AIS
AIS
(1)
(1)
(2)
(3)
Latency
CX29503 Processing
375 µs
375 µs
375 µs
375 µs
125 µs
N/A
N/A
N/A
N/A
Conditioning
Reported in
register
Action to Downstream
AIS-V
AIS-V
ASI-V
AIS-V
N/A
N/A
N/A
AIS-V
Path
(VT with DS1/E1)
(1)
(1)
(2)
(3)
Latency
500 µs
500 µs
500 µs
500 µs
500 µs
N/A
N/A
N/A
N/A
6
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