TXC-06412BROG Transwitch Corporation, TXC-06412BROG Datasheet - Page 136
TXC-06412BROG
Manufacturer Part Number
TXC-06412BROG
Description
Manufacturer
Transwitch Corporation
Datasheet
1.TXC-06412BROG.pdf
(226 pages)
Specifications of TXC-06412BROG
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PHAST-12P Device
DATA SHEET
TXC-06412B
PRELIMINARY TXC-06412B-MB, Ed. 2
June 2005
11.11 HIGH ORDER ALARM INDICATION (RING) PORT INTERFACE
11.11.1 Internal High Order Alarm Indication (Ring) Port Interface
The High Order Alarm Indication (Ring) Port Interface transports the Remote Information (RI)
from the High Order POH sink/monitor to the POH source/generator. The Remote Information
consists of the REI and (enhanced) RDI values to be inserted by the POH generator.
The High Order POH monitor sends the Remote Information of all High Order path channels
to the Receive High Order Alarm Indication (Ring) Port Interface. This port multicasts the
information internally to the POH generator and externally to the Receive Alarm Indication
(Ring) Port Interface.
The source for the Remote Information can be selected in the POH generator, per high order
path. When the Remote Information is taken from the Transmit High Order Alarm Indication
(Ring) Port Interface, it is possible to configure the High Order Alarm Indication (Ring) Port
Interface to use the internally or externally available information.
When the ExtendRDI option is asserted, the RDI insertion will be extended to minimum 20
frames.
When sink and source are handled on one device, the internal ring port can be used
(SelectExternalSource deasserted). The Transmit High Order Alarm Indication (Ring) Port
Interface leads must then be connected to VSS.
Figure 39
Figure 39. Internal High Order Alarm Indication (Ring) Port Interface
-
High Order Pointer Tracking, Retiming and Pointer Generation
shows the use of the internal High Order Alarm Indication (Ring) Port Interface.
Tx High Order Path
POH
Generator
High Order Alarm
Indication (Ring)
Port
Rx High Order path
POH Monitor
aRDI
REI
PHAST-12P
-
1 3 6 o f 2 26
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