參數(shù)資料
型號(hào)： T7698
廠商： Lineage Power
英文描述： Quad T1/E1 Line Interface and Octal T1/E1 Monitor(四T1/E1線接口和八T1/E1監(jiān)控器)
中文描述： 四T1/E1線路接口和八路的T1/E1監(jiān)視器（四個(gè)T1/E1線接口和八T1/E1的監(jiān)控器）
文件頁數(shù)： 33/112頁
文件大?。?/td> 1359K
代理商： T7698
Data Sheet
January 1999
T7698 Quad T1/E1 Line Interface and Octal T1/E1 Monitor
33
Lucent Technologies Inc.
Line Interface Units: Transmit
(continued)
DS1 Transmitter Pulse Template and Specifications
(continued)
During DS1 operation, the TTIP and TRING pins will perform as specified in Table 15.
1.In accordance with the line circuitry described (see Line Interface Unit: Line Circuitry section).
2.Total power difference.
3.Measured in a 2 kHz band around the specified frequency.
4.Using Lucent transformer 2795B and components in Table 111.
5.Below the power at 772 kHz.
CEPT Transmitter Pulse Template and Specifications
CEPT pulse shape template is specified at the system output (defined by ITU-T G.703) and is illustrated in
Figure 10.
5-3145(F)r.1
Figure 10. ITU-T G.703 Pulse Template
Table 15. DS1 Transmitter Specifications
Parameter
Min
Typ
Max
Unit
Spec
Output Pulse Amplitude at DSX
1
Output Pulse Width at Line Side of
Transformer
1
Output Pulse Width at Device Pins
TTIP and TRING
1
Positive/Negative Pulse Imbalance
2
Power Levels
3, 4
:
772 kHz
1.544 MHz
5
2.5
325
3.0
350
3.5
375
V
ns
AT&T CB119,
ANSI T1.102
330
350
370
ns
—
0.1
0.4
dB
12.6
29
—
39
17.9
—
dBm
dB
269 ns
(244 + 25)
219 ns
(244 – 25)
244 ns
194 ns
(244 – 50)
20%
488 ns
(244 + 244)
20%
20%
10%
10%
10%
10%
0%
50%
10%
V = 100%
10%
NOMINAL PULSE
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