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參數(shù)資料
| 型號： | MH88437 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Data Access Arrangement Advance Information |
| 中文描述： | 數(shù)據(jù)訪問安排進展信息 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 96K |
| 代理商： | MH88437 |
1
Features
FAX and Modem interface (V.34/V.34+)
Designed to work at data rates up to 56kbits
External programmable line and network
balance impedances
Programmable DC termination characteristics
IEC950 recognised component
Transformerless 2-4 Wire conversion
Integral Loop Switch
Dial Pulse and DTMF operation
Accommodates parallel phone detection
Line state detection outputs:
-loop current/ringing voltage/line voltage
+5V operation, low on-hook power (25mW)
Full duplex voice and data transmission
On-Hook reception from the line
Meets French current limit requirements
Conforms to German dial pulse standards
Approvable to UL 1950
Industrial Temperature Range Available
Applications
Interface to Central Office or PABX line for:
FAX/Modem
Electronic Point of Sale
Security System
Telemetry
Set Top Boxes
Description
The Mitel MH88437 Data Access Arrangement
(D.A.A.) provides a complete interface between
audio or data transmission equipment and a
telephone line. All functions are integrated into a
single thick film hybrid module which provides high
voltage isolation, very high reliability and optimum
circuit design, needing a minimum of external
components.
The impedance and network balance are externally
programmable,
as
are
characteristics, making the device suitable for most
countries worldwide.
the
DC
termination
Figure 1 - Functional Block Diagram
Opto-
Isolation
Logic Input
Buffer
Isolation
Isolation
Isolation
Analog
Buffer
Analog
Buffer
Buffer
THL cancellation
and line
impedance
matching circuit
Isolation Barrier
VCC
VBIAS
AGND
CL
LC
VR+
VX
RV
LCD
TIP
RING
User Connections
Network Connections
Input Buffer
&
Line Termination
VLOOP1
VLOOP2
Ring & Loop
VR-
NB1
NB2
LOOP
RS
ZA
DS5060
ISSUE 4
October 1998
Package Information
MH88437AD-P 28 Pin DIL Package
MH88437AS-P 28 Pin SM Package
0C to 70C
MH88437AD-PI Ind. Temp. DIL Variant
-40C to +80C
MH88437AS-PI Ind. Temp. SM Variant
-40C to + 80C
MH88437-P
Data Access Arrangement
Advance Information
相關PDF資料 |
PDF描述 |
|---|---|
| MH88437AS-PI | Data Access Arrangement Advance Information |
| MH88437AS-P | Data Access Arrangement Advance Information |
| MH88437-P | Data Access Arrangement Advance Information |
| MH88437AD-P | Data Access Arrangement Advance Information |
| MH88437AD-PI | Data Access Arrangement Advance Information |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MH88437AD-P | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Data Access Arrangement Advance Information |
| MH88437AD-PI | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Data Access Arrangement Advance Information |
| MH88437AS-P | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Data Access Arrangement Advance Information |
| MH88437AS-PI | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Data Access Arrangement Advance Information |
| MH88437-P | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Data Access Arrangement Advance Information |
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