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參數資料
| 型號： | MH88632B |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | 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）) |
| 中文描述： | 中央辦公室接口電路（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）） |
| 文件頁數： | 1/17頁 |
| 文件大小： | 95K |
| 代理商： | MH88632B |
2-239
Features
Supports Loop Start and Ground Start protocols
2-4 Wire conversion
Programmable Input Impedance, Network
Balance Impedance and gains
Three relay drivers
Line state detection outputs
15mA operation allowing long line length
capability
On-hook reception for Caller Line Identification
Meets FCC Part 68 Leakage Current
Requirements
Applications
Interface to Central Office telephone line for
PBX
Key Telephone System
Terminal Equipment
Digital Loop Carrier
Wireless Local Loop
Description
The Mitel MH88632B Central Office Interface Circuit
provides a complete analog and signalling link
between audio switching equipment and a subscriber
line. The device is available in a single in line
package for high packing densities or in a 90
package for reduced card clearance.
The device is fabricated using thick film hybrid
technology for optimum circuit design and very high
reliability.
Figure 1 - Functional Block Diagram
Status
Detection
2-4 Wire
Hybrid
Line
Termination
Impedance
Matching
Receive
Gain
Transmit
Gain
XLA XLB XLC XLD
Z1 Z2 Z600Z900
NS N1 N2 NATT
TIP
RING
VCC
VEE
AGND
RX
GRX1
GRX0
TX
GTX1
GTX0
RV
FL
RL RG TG
Network
Balance
Dummy
Ringer
LRC
LRD
BRC
BRD
GRD
VRLY
RGND
Relay Driver Circuit
GRC
ISSUE 3
September 1997
Ordering Information
MH88632B 40 Pin SIL Package
MH88632BT 40 Pin 90 Package
0
°
C to 70
°
C
MH88632B
Central Office Interface Circuit
Preliminary Information
相關PDF資料 |
PDF描述 |
|---|---|
| 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 |
| MH88634B | Central Office Interface Circuit Advance Information |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 |
| MH88634-2 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface Circuit Preliminary Information |
| MH88634B | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface Circuit Advance Information |
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