- 您现在的位置：买卖IC网 > PDF目录384733 > MH88622-5 (Mitel Networks Corporation) DUAL OPS SLIC Preliminary Information PDF资料下载
参数资料
| 型号： | MH88622-5 |
| 厂商： | Mitel Networks Corporation |
| 英文描述： | DUAL OPS SLIC Preliminary Information |
| 中文描述： | 双退休金用户接口的初步信息 |
| 文件页数： | 8/10页 |
| 文件大小： | 95K |
| 代理商： | MH88622-5 |
2-180
MH88622
Preliminary Information
Figure 4 - Typical Protection Circuit
PROTECTION
PTC
RESISTOR
5 Ohms
TISP2290
or
P2702AB
T
R
PTC
RESISTOR
5 Ohms
T
R
Off-Hook and Dial Pulse Detection
The SHK pin goes low when e DC loop current
exceeds a specified level. The threshold level is
internally set by the bias voltage of the switch hook
detect circuit.
Dial pulse can be detected by monitoring the
interruption rate at the SHK pin. These dial pulses may
need to be debounced by the systems software.
Ring Trip Detection
The interface permits detection of an Off-Hook
condition during ringing. If the subscriber set goes
Off-Hook when the ringing signal has been applied,
the DC loop current flow will be detected within
approx. 100msecs and the SHK output will go low.
The ringing is automatically disabled by the internal
hardware.
Longitudinal Balance
Precision laser trimming of resistors in the hybrids
ensures good overall longitudinal balance.
The interface circuitry can operate in the presence of
induced longitudinal currents of up to 40mA rms at
60Hz.
High Voltage Capability
Inherent in the thick film process is the ability of the
thick film process dielectric strengths of greater than
1000 VAC or 1500 VDC. The thick film process
allows
easy
integration
components such as the high voltage bi-polar power
transistor line drivers. This allows for simpler, less
elaborate and less expensive protection circuitry
required to handle high voltage transients and fault
conditions caused by lightening, induced voltages
and power line crossing.
of
surface
mount
On Hook Transmission
The MH88622 provides for on-hook transmission
which supports features such as Automatic Number
identifications (ANI).
Loop Length
The MH88622 can accommodate loop length of up to
2000
minimum
(including
equipment).
the
subscriber
相关PDF资料 |
PDF描述 |
|---|---|
| MH88622 | DUAL OPS SLIC Preliminary Information |
| MH88622-1 | DUAL OPS SLIC Preliminary Information |
| MH88622-2 | DUAL OPS SLIC Preliminary Information |
| MH88625 | DID/OPS SLIC Preliminary Information |
| MH88625 | DID(Direct Inward Dial)/OPS SLIC(用于直接拨入线卡的用户线接口电路) |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MH88625 | 制造商:MITEL 制造商全称:Mitel Networks Corporation 功能描述:DID/OPS SLIC Preliminary Information |
| MH88628 | 制造商:MITEL 制造商全称:Mitel Networks Corporation 功能描述:Central Office SLIC Preliminary Information |
| MH88630 | 制造商:MITEL 制造商全称:Mitel Networks Corporation 功能描述:Central Office Interface (LS/GS) Preliminary Information |
| MH88631 | 制造商:MITEL 制造商全称:Mitel Networks Corporation 功能描述:Central Office Interface (LS/GS) Preliminary Information |
| MH88631-1 | 制造商:MITEL 制造商全称:Mitel Networks Corporation 功能描述:Central Office Interface (LS/GS) Preliminary Information |
发布紧急采购，3分钟左右您将得到回复。