參數(shù)資料
型號: P1500SBRP
英文描述: MCU CMOS 18 LD 10MHZ .5K FLASH, -40C to +85C, 18-PDIP, TUBE
中文描述: SIDAC的| 180V五(公報)最大| 800mA的我(縣)|的DO - 214AA
文件頁數(shù): 63/161頁
文件大?。?/td> 986K
代理商: P1500SBRP
SIDACtor
Data Book
PBX Systems
Teccor Electronics
(972) 580-7777
3 - 23
R
+2$
Branch Exchange Switches
PBX
s, KSU
s, and PABX
s contain line cards that support various transmission
protocols such as ISDN, T1/E1, HDSL, and ADSL (Figure 3-24). PBXs also have
features such as a POTS (plain old telephone service) pull through which allows
stations to have outside line access in the event of power failure. All incoming lines to
the PBX are subject to environmental hazards such as lightning and power cross.
Protection Requirements
Branch exchange switches should be protected against over-voltages that can exceed
800V and surge currents of up to 100A.
Applicable Regulatory Requirements
FCC Part 68
UL 1459
UL 1950
Branch Exchange Reference Circuit
The following sections contain interface circuits used for protection of PBX line cards.
For POTS protection see pages 3-3 through 3-6.
For ADSL/CDSL protection see page 3-8
For HDSL protection see page 3-10.
For ISDN protection see page 3-12.
For T1/E1 protection see page 3-16.
For Station Protection see pages 3-19 through 3-23.
Figure 3-24 PBX Overview
Stations
To Network
Logic
PBX
POTS
T1/E1
ADSL
HDSL
ISDN
L
M
S
S
C
S
C
Station Primary
Protection
相關(guān)PDF資料
PDF描述
P1500SCRP MCU CMOS 18 LD LOW PWR, 0C to +70C, 18-SOIC 300mil, TUBE
P1602ABRP MCU CMOS 18 LD LOW PWR, -40C to +85C, 18-PDIP, TUBE
P1602AC MCU CMOS 18 LD LOW PWR, -40C to +85C, 18-SOIC 300mil, TUBE
P1602ACRP MCU CMOS 18 LD LOW PWR, 0C to +70C, 18-SOIC 300mil, T/R
P1800SARP SIDAC|220V V(BO) MAX|800MA I(S)|DO-214AA
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P1500SCL 制造商:LITTELFUSE 制造商全稱:Littelfuse 功能描述:gas plasma arresters-package dimensions/specifications
P1500SCLRP 功能描述:硅對稱二端開關(guān)元件 500A 140V RoHS:否 制造商:Bourns 轉(zhuǎn)折電流 VBO:40 V 最大轉(zhuǎn)折電流 IBO:800 mA 不重復(fù)通態(tài)電流: 額定重復(fù)關(guān)閉狀態(tài)電壓 VDRM:25 V 關(guān)閉狀態(tài)漏泄電流(在 VDRM IDRM 下): 保持電流(Ih 最大值):50 mA 開啟狀態(tài)電壓:5 V 關(guān)閉狀態(tài)電容 CO:120 pF 最大工作溫度:+ 150 C 安裝風格:SMD/SMT 封裝 / 箱體:DO-214AA
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P1500SCMCL 制造商:LITTELFUSE 制造商全稱:Littelfuse 功能描述:gas plasma arresters-package dimensions/specifications