POTS&DSL电话线

DSL和Pots Tip&Ring端口金属连接



Design Notes:

保护申请:
This note covers three examples of POTS (Plain Old Telephone Service) Tip & Ring Port protection where there is no ground reference. This is often called a “metallic" connection. Metallic applications are usually associated with the CPE end of the line. POTS lines carry normal voice telephone signals. During ringing, the voltages can approach 275 volts. These solutions can also be used for most DSL applications.
解决方案说明:
Littelfuse提供一系列PotsSidactor®,GDT和Telelink或PTC解决方案。左侧的图中显示了一些常见的解决方案。任何OVP解决方案都可以与任何OCP解决方案一起使用。选择将基于成本和所需的保护水平。P3002SB和SL0902A系列解决方案最适合DSL线。
伴侣解决方案:
还提供SL1002 GDT。p3100EB是一个直通孔选项。GDT可以是表面安装的,也可以通过孔进行。客户还使用了230系列1.25安培2AG保险丝。
监管问题:
这些解决方案旨在符合:TIA-968-A,UL60950&EN60950&YD/T 950-1998 ITU K.21&YD/T 993-1998
Unique Features:
P3002SB解决方案是Littelfuse独有的。
申请警告:
N/A.

Solutions

Solutions

  • P3100SBL

    SIDACtor® Series DO-214AA

  • 600R150

    600V PolySwitch® Lead-Free Radial Leaded Resettable PPTC for Telecom Protection

  • 04611.25

    telelink®电涌耐药表面安装保险丝

  • 0461.500

    telelink®电涌耐药表面安装保险丝