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參數(shù)資料
| 型號(hào)： | MH88632 |
| 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)： | 1/18頁(yè) |
| 文件大?。?/td> | 156K |
| 代理商： | MH88632 |
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2-235
Features
Loop start and ground start capabilities
Transformerless 2-4 wire conversion
Programmable transmit/receive gain with 0dB
defaults
Programmable input impedance with 600
and
900
defaults
Programmable network balance with 600
,
900
, and AT&T compromise default
One loop start & two ground start relay drivers
Line state detection outputs
Forward loop, reverse loop, ring ground, tip
ground, ringing voltage
+5V operation
On-hook audio reception (to accommodate ANI)
Applications
I
nterface to Central Office for:
PBX
Key Telephone System
Channel bank
Voice Mail
Terminal Equipment
Digital Loop Carrier
Description
The Mitel MH88632 Central Office Trunk Interface
circuit provides a complete audio and signalling link
between audio switching equipment and a central
office. The functions provided by the MH88632
include 2-4 Wire Hybrid conversion, programmable
transmit and receive gains, programmable line
impedance and programmable network balance. The
device is fabricated using thick film hybrid
technology which incorporates various technologies
for optimum circuit design and very high reliability.
Status
Detection
2-4 Wire Hybrid
Loop
Termination
Loop Relay
Driver
Bias Relay
Driver
Ring Ground
Driver
Impedance
Matching
Receive
Gain
Transmit
Gain
XLA
XLB
XLC
XLD
LRC
LRD
BRC
BRD
GRC
GRD
VRLY
RGND
Z1 Z2 Z600 Z900 NS N1 N2 NATT
TIP
RING
VDD
VEE
AGND
RX
GRX1
GRX0
TX
GTX1
GTX0
RV FL RLRGTG
Network
Balance
ISSUE 5
April 1995
Ordering Information
MH88632 40 Pin SIL Package
0
°
C to 70
°
C
Figure 1 - Functional Block Diagram
MH88632
Central Office Interface Circuit
Preliminary Information
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MH88632B | 制造商:MITEL 制造商全稱(chēng):Mitel Networks Corporation 功能描述:Central Office Interface Circuit Preliminary Information |
| MH88632BT | 制造商:MITEL 制造商全稱(chēng):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(chēng):Mitel Networks Corporation 功能描述:Central Office Interface Circuit Preliminary Information |
| MH88634-2 | 制造商:MITEL 制造商全稱(chēng):Mitel Networks Corporation 功能描述:Central Office Interface Circuit Preliminary Information |
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