參數(shù)資料
型號(hào)： T7230A
廠(chǎng)商： Lineage Power
元件分類(lèi)： 通信及網(wǎng)絡(luò)
英文描述： Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
中文描述： Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
文件頁(yè)數(shù)： 60/110頁(yè)
文件大?。?/td> 752K
代理商： T7230A
Preliminary Data Sheet
T7230A Primary Access Framer/Controller
June 1997
56
Lucent Technologies Inc.
Alarms and Performance Monitoring
(continued)
The error events monitored by the T7230A are as follows:
A receive framer enters an unavailable state condition whenever it has detected ten consecutive seconds each being
severely errored. When in the unavailable state, the receive framer resumes an available state condition whenever
ten consecutive seconds have been detected, none of which were severely errored.
Table 29. The T7230A Event Counters Definition
Error Event
T7230A Mode
Definition
Counter Size
(bits)
16
Bipolar Violations
(BPVs)
AMI
B8ZS or HDB3
CEPT HDB3
SF: D4
SF: SLC-96
SF: DDS
ESF
CEPT
Any bipolar violation
Any nonvalid BPV
Any 4-bit interval with no 1 pulse
Any F
T
or F
S
bit error
Any F
T
bit error
Any F
T
, F
S
or time slot 24 FAS bit error
Any F
E
bit error
Any FAS (0011011) or NOT FAS (bit 2) bit
error
Any received checksum in error
Frame Alignment
Errors (FERs)
8
CRC Checksum
Errors
Excessive CRC
Errors
ESF or CEPT with CRC
16
ESF
CEPT with CRC
32 consecutive checksum errors
Greater than 914 CRC-4 checksum errors
in a one second interval
Any loss of frame alignment event or slip
Any incorrect receive CRC checksum
Any loss of frame alignment event or slip
event within a one second interval
Any incorrect receive CRC checksum within
a one second interval
Greater than 1 but less than 320 CRC-6
checksum errors within a one second
period
Greater than 1 but less than 915 CRC-4
checksum errors within a one second
period
Greater than 1 but less than 16 FAS or NOT
FAS bit errors within a one second period
Loss of frame alignment or slip within a one
second period
8 or more framing bit errors within a one
second period
320 or more CRC-6 checksum errors within
a one second period
915 or more CRC-4 checksum errors within
a one second period
16 or more FAS or NOT FAS bit errors
within a one second period
A one second period in the unavailable
state
NONE
Error Events
All
ESF or CEPT with CRC
16
Error Second Events All
16
ESF or CEPT with CRC
Bursty Error Second
Events
ESF
16
CEPT with CRC
CEPT with no CRC
Severely Error Sec-
ond Events
All
16
SF
ESF
CEPT with CRC
CEPT with no CRC
Unavailable Second
Events
All
16
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
T-7230A--ML 制造商:Rochester Electronics LLC 功能描述:- Bulk
T7230-ML3 制造商:AGERE 功能描述:
T7-231A1 功能描述:撥動(dòng)開(kāi)關(guān) ON NONE OFF 2 Pole Standard Bat Handle RoHS:否 制造商:OTTO 觸點(diǎn)形式: 開(kāi)關(guān)功能: 電流額定值: 電壓額定值 AC: 電壓額定值 DC: 功率額定值: 端接類(lèi)型: 安裝風(fēng)格: 端子密封: 觸點(diǎn)電鍍: 照明:
T7-231A2 制造商:OTTO Engineering Inc 功能描述:2POLE, SOLDER, STD,
T7-231A2D 功能描述:撥動(dòng)開(kāi)關(guān) ON NONE OFF 2 Pole Standard LeverLock RoHS:否 制造商:OTTO 觸點(diǎn)形式: 開(kāi)關(guān)功能: 電流額定值: 電壓額定值 AC: 電壓額定值 DC: 功率額定值: 端接類(lèi)型: 安裝風(fēng)格: 端子密封: 觸點(diǎn)電鍍: 照明:
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