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參數資料
| 型號： | MH88630 |
| 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 |
| 文件大小： | 85K |
| 代理商： | MH88630 |
2-215
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
Applications
PBX Interface to Central Office
Channel bank
Intercom
Key system
Description
The Mitel MH88630 Central Office Trunk Interface
circuit provides a complete audio and signalling link
between an audio switching equipment and a central
office. The loop seize circuitry is controlled by an
external input to provide either a loop start or ground
start termination. The device is fabricated using thick
film hybrid technology to achieve high density circuit
design.
Figure 1 - Functional Block Diagram
Signal Detection
Circuitry
Ring
Ground
Network
Balance
Relay
Driver 1
Relay
Driver 2
Audio Section
Circuitry
(2 - 4 Wire)
Active
Termination
AGND
VCC-
VCC+
RINGND
LPGND
TG
RC
RV
FC
RG
T
R
VTR+
VTR-
RXIN-
RXIN+
QB QE XA XB
XC
VDD
VEE
RXOUT
TXIN+
TXIN-
RC1
RD1
RGND
CD
RD2
RC2
NETBAL
GSX
VX
VR
GSR
ISSUE 7
April 1995
Ordering Information
MH88630
40-Pin DIL Package
0
°
C to 70
°
C
MH88630
Central Office Interface (LS/GS)
Preliminary Information
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|---|---|
| MH88632 | Central Office Interface Circuit Preliminary Information |
| MH89101 | Passive Line Termination Circuit(無源線終端電路) |
| MH89625C-5 | OPS/DID PCM SLIC Preliminary Information |
| MH89625C-6 | OPS/DID PCM SLIC Preliminary Information |
| MI402 | PIN DIODE RF POWER SWITCHING |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MH88631 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface (LS/GS) Preliminary Information |
| MH88631-1 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface (LS/GS) Preliminary Information |
| 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 |
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