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參數(shù)資料
| 型號： | L9311 |
| 英文描述： | Line Interface and Line Access Circuit Full-Feature SLIC with High Longitudinal Balance, Ringing Relay,and GR-909 Test Access |
| 中文描述： | 線路接口和線路接入電路全功能用戶接口高縱向平衡，振鈴繼電器，和GR - 909測試訪問 |
| 文件頁數(shù)： | 18/50頁 |
| 文件大小： | 852K |
| 代理商： | L9311 |
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Data Sheet
July 2001
Ringing Relay, and GR-909 Test Access
L9311 Full-Feature SLIC with High Longitudinal Balance,
18
Agere Systems Inc.
Electrical Characteristics
(continued)
Ring Trip Detector
Table 6. Ring Trip Detector
1. The ringing source may be either of the following:
a.) The ringing source consists of the ac and dc voltages added together (battery-backed ringing); the ringing return is ground.
b.) The ringing source consists of only the ac voltage (earth-backed ringing); the ringing return is the dc voltage.
2. NDET must also indicate ring trip when the ac ringing voltage is absent (<5 Vrms) from the ringing source.
3. Pretrip ringing must not be tripped by a 10 k
resistor in parallel with an 8 μF capacitor applied across tip and ring.
Parameter
Min
±2.5
Typ
±3
Max
±3.5
Unit
V
Voltage at Input that will Cause Ring Trip After Appropriate
Zero Crossings
Voltage at Input that will Cause Immediate Ring Trip
Ringing Source
1
:
Frequency (f)
dc Voltage
ac Voltage
Ring Trip (NDET = 0)
2, 3
:
Loop Resistance
Trip Time
NDET Valid
±12
±15
±18
V
19
–39.5
60
20
—
—
28
–57
105
Hz
V
Vrms
2000
—
—
—
—
—
—
200
80
ms
ms
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