參數(shù)資料
型號： 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T1/E1線接口和八T1/E1的監(jiān)控器）
文件頁數(shù)： 34/112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
34
Lucent Technologies Inc.
Line Interface Units: Transmit
(continued)
CEPT Transmitter Pulse Template and Specifications
(continued)
During CEPT operation, the transmitter tip/ring (TTIP/TRING pins) will perform as specified in Table 16.
1. In accordance with the line circuitry described (see Line Interface Unit: Line Circuitry section), measured at the transformer secondary.
2. Using Lucent transformer 2795D or 2795C and components in Table 111.
Table 16. CEPT Transmitter Specifications
Parameter
Min
Typ
Max
Unit
Spec
Output Pulse Amplitude
1
:
75
120
Output Pulse Width at Line Side of
Transformer
1
Output Pulse Width at Device Pins TTIP
and TRING
1
Positive/Negative Pulse Imbalance:
Pulse Amplitude
Pulse Width
Zero Level (percentage of pulse
amplitude)
Return Loss
2
(120
):
51 kHz to 102 kHz
102 kHz to 2.048 MHz
2.048 MHz to 3.072 MHz
Return Loss
2
(75
):
51 kHz to 102 kHz
102 kHz to 3.072 MHz
2.13
2.7
219
2.37
3.0
244
2.61
3.3
269
V
V
ns
ITU-T G.703
224
244
264
ns
–4
–4
–5
±1.5
±1
0
4
4
5
%
%
%
9
15
11
—
—
—
—
—
—
dB
dB
dB
CH-PTT
7
9
—
—
—
—
dB
dB
ETS 300 166:
1993
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