XRT86VX38_09 Datasheet, PDF (165/200 Pages) Exar Corporation – 8-CHANNEL T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION

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XRT86VX38
8-CHANNEL T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION
TABLE 153: CUSTOMER INSTALLATION ALARM STATUS REGISTER (CIASR)
HEX ADDRESS: 0XNB40
BIT
FUNCTION
TYPE DEFAULT
DESCRIPTION-OPERATION
[7:6] Reserved
-
-
Reserved
5 RxAIS-CI_state RO
0
Receive Alarm Indication Signal-Customer Installation (AIS-CI) State
This READ ONLY bit field indicates whether or not the Receive T1 Framer is
currently detecting the Alarm Indication Signal-Customer Installation (AIS-
CI) condition.
Alarm Indication Signal-Customer Installation (AIS-CI) is intended for use in
a network to differentiate between an issue within the network or the Cus-
tomer Installation (CI).
AIS-CI is an all ones signal with an embedded signature of 01111100
11111111 (right-to left) which recurs at 386 bit intervals in-the DS-1 signal.
0 = Indicates the Receive T1 Framer is currently NOT detecting the AIS-CI
condition
1 = Indicates the Receive T1 Framer is currently detecting the AIS-CI condi-
tion
NOTE: This bit only works if AIS-CI detection is enabled (Register 0xN11C)
4 RxRAI-CI_state RO
0
Rx RAI-CI State
This READ ONLY bit field indicates whether or not the Receive T1 Framer is
currently declaring the Remote Alarm Indication - Customer Installation
(RAI-CI) condition. (This is for T1 ESF framing mode only)
Remote Alarm Indication - Customer Installation (RAI-CI) is intended for use
in a network to differentiate between an issue within the network or the Cus-
tomer Installation (CI).
RAI-CI is a repetitive pattern with a period of 1.08 seconds. It is comprised of
0.99 seconds of RAI message (00000000 11111111 Right-to-left) and a 90
ms of RAI-CI signature (00111110 11111111 Right to left) to form a RAI-CI
signal.
0 = Indicates the Receive T1 Framer is currently NOT detecting the RAI-CI
condition
1 = Indicates the Receive T1 Framer is currently detecting the RAI-CI condi-
tion
NOTE: This bit only works if RAI-CI detection is enabled (Register 0xN11C)
[3:2] Reserved
-
-
Reserved
162