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參數資料
| 型號： | MH88631-1 |
| 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 |
| 文件頁數： | 1/10頁 |
| 文件大?。?/td> | 87K |
| 代理商： | MH88631-1 |
2-225
Features
Transformerless 2-4 wire conversion
Line state detection outputs
- forward current
- reverse current
- ring ground
- tip ground
- ringing voltage
Programmable audio transmit and receive gain
Loop start or ground start termination
Selectable 600
or AT&T compromise balance
network
-1 version: 20Hz Ringing Voltage
-2 version: 50Hz Ringing Voltage
Applications
PBX
Channel bank
Intercom
Key System
Description
The Mitel MH88631-1, 2 Central Office Trunk
Interface circuit provides a complete audio and
signalling link between audio switching equipment
and a central office. The loop seize circuitry is
controlled by an external input to provide either a
loop start of ground start termination. The device is
fabricated using thick film ceramic technology to
achieve high density circuit design.
T
R
VTR+
VTR-
RXIN-
RXIN+
LPGND RINGND
RC1
RD1
RGND
CD
RD2
RC2
VCC+
RG
FC RV RC
TG
QB QE XA XB XC
VDD VEE
RXOUT
TXIN+
TXIN-
NETBAL
GSX
VX
VR
GSR
VCC- AGND
Signal Detection
Circuitry
Active
Termination
Ring
Ground
Network
Balance
Relay
Driver 1
Relay
Driver 2
Audio Section
Circuitry
(2-4 Wire)
ISSUE 4
April 1995
Ordering Information
MH88631-1 40 Pin SIL Package
MH88631-2 40 Pin SIL Package
0
°
C to 70
°
C
Figure 1 - Functional Block Diagram
MH88631
Central Office Interface (LS/GS)
Preliminary Information
相關PDF資料 |
PDF描述 |
|---|---|
| MH88632B | Central Office Interface Circuit(用于中央辦公電話線的接口電路（在音頻轉換設備和用戶線之間提供一個模擬和信號連接）) |
| MH88632B | Central Office Interface Circuit Preliminary Information |
| MH88632BT | Central Office Interface Circuit Preliminary Information |
| MH88634-2 | Central Office Interface Circuit(用于中央辦公電話線的接口電路（在音頻轉換設備和用戶線之間提供一個模擬和信號連接）) |
| MH88634BV-2 | SWITCH PB DPDT MINI RTANG ALTACT |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MH88631-2 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface (LS/GS) Preliminary Information |
| 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 |
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