參數(shù)資料
型號(hào)： TLIU04C1
廠商： Lineage Power
英文描述： Quad T1/E1 Line Interface(四T1/E1線接口)
中文描述： 四T1/E1線路接口（四個(gè)T1/E1線接口）
文件頁(yè)數(shù)： 71/100頁(yè)
文件大?。?/td> 1321K
代理商： TLIU04C1
Advance Data Sheet, Rev. 2
April 1999
TLIU04C1 Quad T1/E1 Line Interface
71
Lucent Technologies Inc.
Direct Logic Control Mode
(continued)
Receiver Configuration Modes
(continued)
RLIU ALARMS
(continued)
Loss Shutdown (LOSSD) and Receiver AIS (RCVAIS).
The loss shutdown control pin (LOSSD) acts in conjunc-
tion with the receiver AIS (RCVAIS) control pin to place the digital outputs in a predetermined state when a digital
loss of signal (DLOS) or analog loss of signal (ALOS) alarm occurs.
If LOSSD = 0 and RCVAIS = 0, the RND, RPD, and RCLK outputs will be unaffected by the DLOS alarm condition.
However, when an ALOS alarm condition exists, the RPD and RND outputs are forced to their inactive state
(dependent on ALM state) and the RCLK free runs (based on XCLK frequency).
If LOSSD = 0, RCVAIS = 1, and a DLOS or an ALOS alarm condition exists, the RPD and RND outputs will present
an alarm indication signal (AIS, all ones) based on the free-running clock frequency, and the RCLK free runs.
If LOSSD = 1, regardless of the state of RCVAIS, and a DLOS or an ALOS alarm condition exists, the RPD and
RND outputs are forced to their inactive state (dependent on ALM state) and the RCLK free runs.
The RND, RPD, and RCLK signals will remain unaffected if any loopback (FLLOOP RLOOP DLLOOP) is activated
independent of LOSSD and RCVAIS settings.
The LOSSD and RCVAIS behavior is summarized in Table 42.
RLIU Bipolar Violation (BPV) Alarm.
The bipolar violation (BPV) alarm is used only in the single-rail mode of
operation. When B8ZS(DS1)/HDB3(CEPT) coding is not used (i.e., CODE[1—4] = 0), any violations in the receive
data (such as two or more consecutive ones on a rail) are indicated on the RND/BPV outputs. When B8ZS(DS1)/
HDB3(CEPT) coding is used (i.e., CODE[1—4] = 1), the HDB3/B8ZS code violations are reflected on the RND/
BPV outputs.
Table 42. LOSSD and RCVAIS Control Configurations (Not Valid During Loopback Modes)
LOSSD
RCVAIS
ALARM
RPD/RND
RCLK
0
0
ALOS
0 if ALM = 1, 1 if ALM = 0
Free Runs
0
0
DLOS
Normal Data
Recovered Clock
0
1
ALOS
AIS (all ones)
Free Runs
0
1
DLOS
AIS (all ones)
Free Runs
1
X
ALOS
0 if ALM = 1, 1 if ALM = 0
Free Runs
1
X
DLOS
0 if ALM = 1, 1 if ALM = 0
Free Runs
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