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參數(shù)資料
| 型號(hào)： | MH88631-2 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Central Office Interface (LS/GS) Preliminary Information |
| 中文描述： | 中央辦公室接口（康樂/ GS）的初步信息 |
| 文件頁(yè)數(shù)： | 2/10頁(yè) |
| 文件大?。?/td> | 87K |
| 代理商： | MH88631-2 |
2-226
MH88631
Preliminary Information
Figure 2 - Pin Connections
Pin Description
Pin #
Name
Description
1
LPGND
Loop Ground
is the system ground reference with respect to -48V.
2
VDD
Positive Power Supply
(+5V).
3
RINGND
Ring Ground (Input)
. For Ground Start Trunk only a logic low input will enable the trunk
circuit to ground the Ring lead through a low resistance (390
). This is a signal to the C.O.
that the interface is seizing the line.
4
T
Tip (Input)
. Normally connects to the “Tip” lead of the C.O.
5
R
Ring (Input)
. Normally connects to the “Ring” lead of the C.O.
6
VTR-
Connects to the TXIN+ (Pin 29) via an external capacitor (C1).
7
VTR+
Connects to the collector of an external transistor (Q1) and TXIN- (Pin 27) via an external
capacitor (C4)
8
XC
External relay contact (K1) connection from XB (Pin 21), activates by loop seize control
input (RC1).
9
XA
External relay contact (K1) connection from VTR+ (Pin 7), activated by loop seize control
input (RC1).
10
QE
Connects to the emitter of an external transistor (Q1).
11
AGND
Analog Ground
.
12
RXIN+
Differential Receive (Input)
. Connects to analog ground via an external capacitor (C2).
13
RXIN-
Differential Receive (Input).
Connects to RXOUT (Pin 24) via an external capacitor (C3).
14
VEE
Negative Power Supply.
(-5V).
15
TG
Tip Lead Ground Detect (Output)
. Active low.
16
RC
Reverse Loop Current Detect (Output)
. Active low.
17
RV
Ringing Voltage Detect (Output)
. Active low.
18
FC
Forward Loop Current Detect (Output)
. Active low
19
RG
Ring Lead detect (Output)
. Active low.
20
QB
Connects to the base of an external transistor (Q1).
XB
VEE
VDD
RXOUT
VCC+
GSR
TXIN-
VCC-
TXIN+
AGND
VR
VX
RGND
GSX
RC1
NETBAL
RD1
CD
RD2
RC2
LPGND
VDD
RINGND
T
R
VTR-
VTR+
XC
XA
QE
AGND
RXIN+
RXIN-
VEE
TG
RC
RV
FC
RG
QB
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MH88631 | Central Office Interface (LS/GS) Preliminary Information |
| MH88631-1 | Central Office Interface (LS/GS) Preliminary Information |
| MH88632B | 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）) |
| MH88632B | Central Office Interface Circuit Preliminary Information |
| MH88632BT | Central Office Interface Circuit Preliminary Information |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MH88632 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface Circuit Preliminary Information |
| MH88632B | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface Circuit Preliminary Information |
| MH88632BT | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface Circuit Preliminary Information |
| MH88633AV-PE4 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| 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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