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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)： | 57/110頁(yè) |
| 文件大?。?/td> | 752K |
| 代理商： | T7230A |
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Preliminary Data Sheet
June 1997
T7230A Primary Access Framer/Controller
53
Lucent Technologies Inc.
Alarms and Performance Monitoring
(continued)
7.
The
continuous E-bit
alarm (CON-E) is asserted when the receive framer detects:
A.
Five consecutive seconds where each 1 second interval contains
≥
991 received E bits = 0 events.
B.
Simultaneously no LFA occurred.
C.
No A bit = 1 was received.
D.
Neither Sa6_F
hex
nor Sa6_E
hex
codes were detected.
The five second timer is started when:
E.
F.
G.
CRC-4 multiframe alignment is achieved.
A = 0 is detected.
Neither Sa6
_
F
hex
nor Sa6
_
E
hex
is detected.
The five second counter is restarted when:
H.
LFA occurs, or
I.
≤
990 E bit = 0 events occurred in 1 second, or
J.
An A bit = 1, is detected, or
K.
A valid Sa6_F
hex
or Sa6_E
hex
code was detected.
This alarm is disabled when:
L.
M.
N.
O.
LFA occurs.
or
≤
990 E bit = 0 events occurred in 1 second, or
An A bit = 1 is detected, or
The Sa6_F
hex
or Sa6_E
hex
code was detected.
8.
Failed state
alarm or the
unavailable state alarm
.
A.
The default mode asserts this alarm bit upon detection of ten consecutive severely errored second
events and deasserts this alarm bit upon detection of ten consecutive seconds that were not severely
errored. The corresponding performance counters are incremented appropriately.
B.
Optionally, the T7230A can be programmed to process the unavailable state at the onset of the
unavailable state (at the beginning of the ten consecutive severely error interval), and inhibit the
increment of the severely errored and errored seconds counters for the duration of the unavailable state.
In this mode, the contents of the performance counters contains information delayed by ten seconds.
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| 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: |
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