PM5363 TUPP+622
TUPP+622
DATASHEET
PMC-1981421
ISSUE 4
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR FOR 622 MBIT/S
INTERFACES
Pin Name
AIS[1]
Type
Pin
No.
Function
Output G1
The tributary alarm indication signal output #1
(AIS[1]) marks tributaries on the outgoing STM-4
or STM-1 #1 stream that are in AIS state.
In outgoing STM-1 (STS-3) interface mode
(OHSMODEB set high), AIS[1] is set high when
AIS is inserted in the associated tributary of the
STM-1 #1 stream on the OD[7:0] and is set low
when the AIS is not inserted. AIS[1] is updated
on the rising edge of SCLK.
In outgoing STM-4 (STS-12) interface mode
(OHSMODEB set low), AIS[1] is set high when
AIS is inserted in the associated tributary of the
STM-4 stream on the OD[7:0] and is set low
when the AIS is not inserted. AIS[1] is set low for
transport overhead bytes. AIS[1] is updated on
the rising edge of HSCLK.
AIS[2]
Output K21
The tributary alarm indication signal output #2
(AIS[2]) marks tributaries on the outgoing STM-4
or STM-1 #2 stream that are in AIS state.
In outgoing STM-1 (STS-3) interface mode
(OHSMODEB set high), AIS[2] is set high when
AIS is inserted in the associated tributary on the
OD[15:8] and is set low when the AIS is not
inserted. AIS[2] is updated on the rising edge of
SCLK.
In outgoing STM-4 (STS-12) interface mode
(OHSMODEB set low), AIS[2] is invalid.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
61
PMC [ PMC-SIERRA, INC ]
