PM5381-BI PMC-Sierra, Inc., PM5381-BI Datasheet - Page 515
PM5381-BI
Manufacturer Part Number
PM5381-BI
Description
ATM UNI, Single Channel ATM PHY Interface for 2488.32Mbps
Manufacturer
PMC-Sierra, Inc.
Datasheet
1.PM5381-BI.pdf
(586 pages)
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13.1.11 Character Encode
13.1.12 Serial TelecomBus MST and HPT Modes
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2000489, Issue 4
Table 23 Serial TelecomBus 8B/10B Control Character Decoding
The T8TE block encodes the TelecomBus control characters into an extended set of 8B/10B
TelecomBus control signals. The table is divided into two sections, one for each mode of
operation in the 8B/10B encoder in an external device upstream of the S/UNI-2488.
Table 24 Serial TelecomBus 8B/10B Control Character Encoding
The S/UNI-2488 can be made to operate in either Multiplex Section Termination (MST) or High
Order Path Termination (HPT) mode.
MST mode is used for systems where each payload terminating device has J1 pointer interpretors
so only the J0 frame indicator is required. MST mode MUST be used if the LVDS ports are used
in a cross-connect application and may be used if the S/UNI-2488 is the APS working device in
an APS application (see Figure 6).
Code Group
Name
Multiplex Section Termination (MST) Mode
K28.5
K.28.4-
High-Order Path Termination (HPT) Mode
K28.0-
K28.0+
K28.6
Code Group
Name
Multiplex Section Termination (MST) Mode
K28.5
K.28.4-
High-Order Path Termination (HPT) Mode
K28.0-
K28.0+
K28.6
Curr. RD-
abcdei fghj
001111 1010
001111 0010
001111 0100
-
001111 0110
Curr. RD-
abcdei fghj
001111 1010
001111 0010
001111 0100
-
001111 0110
-
-
110000 1001
-
-
110000 1001
Curr. RD+
abcdei fghj
110000 0101
110000 1011
Curr. RD+
abcdei fghj
110000 0101
110000 1011
S/UNI-2488 Telecom Standard Product Datasheet
Decoded Signals Description
Transport frame alignment
High-order path AIS
High-order path H3 byte, no negative
justification event
High-order path PSI byte, positive
justification event
High-order path frame alignment. The
K28.6 character which signals the J1 byte
position is decoded as 0x00 by the R8TD.
Decoded Signals Description
Transport frame alignment
High-order path alarm
High-order path H3 byte, no negative
justification event
High-order path PSO byte, positive
justification event
High-order path frame alignment. The
K28.6 character which signals the J1 byte
position is decoded as 0x00 by the R8TD.
Released
515
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