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參數(shù)資料
| 型號： | MH89625C |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | OPS/DID PCM SLIC Preliminary Information |
| 中文描述： | 老年退休金計劃/沒有的PCM用戶接口的初步信息 |
| 文件頁數(shù)： | 7/16頁 |
| 文件大?。?/td> | 133K |
| 代理商： | MH89625C |
2-275
Preliminary Information
MH89625C
Loop Electrical Characteristics are over Recommended Operating Conditions unless otherwise stated.
Typical figures are at 25
°
C with nominal ±5V supplies and are for design aid only.
x
The SLIC can be loaded with an AC impedance as low as 4000
without generating a false SHK output. Since each REN
represents 8k
, the SLIC can drive a REN of 2 without generating a false SHK output.
y
This parameter is over Recommended Operating Conditions as well as the specified Operating Loop Resistance.
z
Off-Hook Detect (SHK) will be detected for loop lengths of 2900
or less.
AC Electrical Characteristics are over Recommended Operating Conditions unless otherwise stated.
Typical figures are at 25
°
C and are for design aid only.
x
Three impedance selections of Z
in
= 600
, Z
in
=200
+ 560 // 0.1
μ
F, and Z
in
=200
+ 680 // 0.1
μ
F are available.
y
Values apply for all three impedances selections; in all three cases Z
in
= Reference Impedance.
Note 1: All of the above test conditions use 200Hz to 3400 Hz unless otherwise stated.
Note 2: The transmit codec gain is set to 0dB, the receive codec gain is set to 0dB, and the receive gain adjustment is set to 0dB
(GS=5V), unless otherwise specified.
Note 3: With the transmit and receive gains set to 0dB; 0dBmO at the DSTi input will appear as 0dBm at the Tip-Ring output; 0dBm at
the Tip-Ring input will appear as 0dBmO at the DSTo output.
Note 4 All dBm is referenced to 600
.
Loop Electrical Characteristics
-
Characteristics
Sym
Min
Typ
Max
Units
Test Conditions
1
Maximum AC Ringing
x
Current Rejection
33
mA
25Hz, V
BAT
= -48V
2
Ring Trip Detect Time
y
100
ms
3
Hook Switch Detect Time:
Off-Hook to On-Hook
On-Hook to Off-Hook
20
20
ms
ms
4
Operating Loop Currents
Maximum Operating Loop Current
I
IP
18
22
50
26
1850
mA
LCA= Open
LCA= 30k to V
EE
V
BAT
= -40V
V
BAT
=-48V
5
Operating Loop Resistance
R
IP
0
0
2300
6
Loop Current at Off-Hook
z
Detect Threshold
I
SH
7
10
13
mA
AC Electrical Characteristics
Characteristics
Sym
Min
Typ
Max
Units
Test Conditions
1
2-wire Input Impedance
x
600R
(Magnitude) 560 Network
(Magnitude) 680 Network
Z
in
600
720
813
1020 Hz
2
Return Loss at 2-Wire
y
14
18
14
23
24
35
dB
dB
dB
300 Hz
500-2000 Hz
3400 Hz
3
Longitudinal to Metallic
Balance
40
46
54
51
dB
dB
300-600 Hz
600-3400 Hz
4
Transhybrid Loss
16
20
16
52
41
52
dB
dB
dB
300 Hz
500-2500 Hz
3400 Hz
5
Power Supply Rejection Ratio
at 2-Wire and DSTo:
V
DD
V
EE
V
BAT
PSRR
20
20
20
40
30
40
dB
dB
dB
Ripple 50mV
1020 Hz
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PDF描述 |
|---|---|
| MH89726 | MT8972 Loop Extender Circuits Advance Information |
| MH89728 | MT8972 Loop Extender Circuits Advance Information |
| MH89760B | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| MH89760BN | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| MH89760BS | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MH89625C-5 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:OPS/DID PCM SLIC Preliminary Information |
| MH89625C-6 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:OPS/DID PCM SLIC Preliminary Information |
| MH89626C | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:OPS/DID SLIC Preliminary Information |
| MH89626C-02 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:OPS/DID SLIC Preliminary Information |
| MH89626C-04 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:OPS/DID SLIC Preliminary Information |
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