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)： 28/112頁
文件大小： 1359K
代理商： T7698
Data Sheet
January 1999
T7698 Quad T1/E1 Line Interface and Octal T1/E1 Monitor
28
Lucent Technologies Inc.
Line Interface Units: Receive
(continued)
CEPT Receiver Specifications
During CEPT/E1 operation, the RLIU will perform as specified in Table 11.
1.Below the nominal pulse amplitude of 3.0 V with the line circuitry specified (see Line Interface Unit: Line Circuitry section).
2.Cable loss at 1.024 MHz.
3.Amount of cable loss for which the receiver will operate error-free in the presence of a –18 dB interference signal summing with the intended
signal source.
4.Using Lucent transformer 2795D or 2795C and components listed in Table 111.
Table 11. CEPT RLIU Specifications
Parameter
Min
Typ
Max
Unit
Spec
Analog Loss of Signal:
Threshold to Assert
Threshold to Clear
Hysteresis
Time to Assert (ALTIMER = 0)
Time to Assert (ALTIMER = 1)
Receiver Sensitivity
2
Interference Immunity
3
:
Jitter Transfer:
3 dB Bandwidth, Single Pole Roll Off
Peaking
Generated Jitter
Jitter Accommodation
17.5
13.5
—
1.0
10
11
9
18
14
4
—
—
13.5
12
23
17.5
—
2.6
255
—
—
dB
1
dB
1
dB
ms
UI
dB
dB
I.431, ETSI 300 233
—
—
I.431, ETSI 300 233
G.775
—
ITU-T G.703
—
—
—
—
5.1
—
0.04
—
—
0.5
0.05
—
kHz
dB
UIp-p
—
Figure 8 on page 29
Figure 14 on page 38
ITU-T G.823, I.431
Figure 7 on page 29
Figure 13 on page 38
ITU-T G.703
Return Loss
4
:
51 kHz to 102 kHz
102 kHz to 1.544 MHz
1.544 MHz to 2.316 MHz
Digital Loss of Signal:
Flag Asserted When Consecutive Bit
Positions Contain
Flag Deasserted When Data Density is
(LOSSTD = 1)
14
20
16
—
—
—
—
—
—
dB
dB
dB
255
12.5
—
—
—
—
zeros
%ones
—
ITU-T G.775
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