參數(shù)資料
型號(hào): MH88632BT
廠商: Mitel Networks Corporation
英文描述: Central Office Interface Circuit Preliminary Information
中文描述: 中央辦公室接口電路的初步信息
文件頁(yè)數(shù): 7/17頁(yè)
文件大?。?/td> 95K
代理商: MH88632BT
Preliminary Information
MH88632B
2-245
Figure 3 - Typical Combined Loop Start and Ground Start Appliation Circuit
MH88632B
Protection
Circuit
K1
K2
K3
R3
R1
R2
48V Battery
Loop relay Control
Bias Relay Control
Ground Relay Control
Analog Out
Analog In
Ringing Voltage Detect
Forward Loop Detect
Reverse Loop Detect
Ring Ground Detect
Tip Ground Detect
GTX1
GTX0
TX
GRX1
GRX0
RX
Z1
Z600
NS
RV
FL
RL
RG
TG
VEE
AGND
VCC
XLD
XLC
XLB
XLA
GRC
BRC
LRC
RGND
VRLY
GRD
BRD
LRD
RING
TIP
Tip
Ring
K3
+5V
-5V
28
27
25
30
29
26
23
32
33
36
37
35
38
34
39
18
40
6
5
4
3
17
16
15
11
12
8
14
13
2
1
NOTES
:
1) Configured for 0dB Gain,
and 600
Network Balan ce Impedance
2) K1, K2 are E/M FORM C
3) K3 is E/M 1 FORM C
4) R1 = R2 = 30.9k
, 1%, 5W
5) R3 = 470
, 5%, 5W
6) K2, K3, R1, R2, R3 are required for Ground Start only
K2A
K2B
K1A
K1B
+5V
600
Input Impedance
C1
C2
7) C1, C2 are decoupling capacitors
相關(guān)PDF資料
PDF描述
MH88634-2 Central Office Interface Circuit(用于中央辦公電話線的接口電路(在音頻轉(zhuǎn)換設(shè)備和用戶線之間提供一個(gè)模擬和信號(hào)連接))
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MH88634 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface Circuit Preliminary Information
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MH88634B 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface Circuit Advance Information
MH88634BT-2 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface Circuit Advance Information