tmxf28155 ETC-unknow, tmxf28155 Datasheet - Page 601

• Manufacturer Part Number: tmxf28155
• Description: Tmxf28155 Super Mapper 155/51 Mbits/s Sonet/sdh X28/x21 Ds1/e1
• Manufacturer: ETC-unknow

Preliminary Data Sheet
May 2001
26 Applications
26.14 Line Decoder/Encoder
The line decoder/encoder supports either single-rail or dual-rail transmission. In dual-rail mode, the line codes sup-
ported are as follows:
In the single-rail mode, a line interface unit (LIU) decodes/encodes the data.
In the dual-rail mode, loss of signal in monitored.
In the case of coded mark inversion (CMI) coding (Japanese TTC standard JJ-20.11), the LIU decodes the data,
indicating both the CMI coding rule violations (CRVs) and line coding violations as bipolar violations. (In the CMI
mode, the framer is in the single-rail mode.)
26.15 Receive Frame Aligner/Transmit Frame Formatter
The receive frame aligner and transmit frame formatter support the following frame formats:
26.16 Receive Performance Monitor
The receive framer monitors the following alarms: loss of receive clock, loss of signal, loss of frame, alarm indica-
tion signal (AIS), remote frame alarms, and remote multiframe alarms. These alarms are detected as defined by
the appropriate ANSI , AT&T, ITU, and ETSI standards.
Performance monitoring as specified by AT&T, ANSI , and ITU is provided through counters monitoring bipolar vio-
lation, frame bit errors, CRC errors, errored events, errored seconds, bursty errored seconds, and severely errored
seconds.
In-band loopback activation and deactivation codes can be transmitted to the line via the payload or the facility data
link. In-band loopback activation and deactivation codes in the payload or the facility data link are detected.
Agere Systems Inc.
Alternate mark inversion (AMI).
DS1 binary 8 zero code suppression (B8ZS).
ITU-CEPT high-density bipolar of order 3 (HDB3).
D4 superframe.
SF D4 superframe: F
J-D4 superframe with Japanese remote alarm.
DDS.
SLC -96.
ESF.
J-ESF (J1 standard with different CRC-6 algorithm).
Non-align DS1 (193 bits—clear channel).
CEPT basic frame (ITU G.706).
CEPT CRC-4 multiframe with 100 ms timer (ITU G.706).
CEPT CRC-4 multiframe with 400 ms timer (automatic CRC-4/nonCRC-4 equipment interworking) (ITU G.706
Annex B).
Non-align E1 (256 bits—clear channel).
2.048 coded mark inversion (CMI) coded interface (TTC standards JJ-20.11).
(continued)
T
framing only.
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
TMXF28155/51 Super Mapper
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