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D15P12DW中文資料L-COM數(shù)據(jù)手冊PDF規(guī)格書

D15P12DW
廠商型號

D15P12DW

功能描述

HyperLink Brand Weather Resistant Lightning and Surge Protector for RS-485 Control plus AC/DC Power Lines

文件大小

171.08 Kbytes

頁面數(shù)量

4

生產(chǎn)廠商 Infinite Electronics International, Inc.
企業(yè)簡稱

L-COM

中文名稱

Infinite Electronics International, Inc.官網(wǎng)

原廠標(biāo)識
數(shù)據(jù)手冊

下載地址一下載地址二到原廠下載

更新時間

2024-12-25 19:13:00

D15P12DW規(guī)格書詳情

Applications

? RS-485 lines with AC or DC supply voltage

? Analog or IP video surveillance cameras

? Pool/spa and industrial controllers and keyboards

? Door/gate access control with RS-485 and power

? Pan-Tilt-Zoom (PTZ) camera controllers

Features

? Individual protection circuits for RS-485 control and power lines

? 3-Stage protection provided for all lines

? Will also protect two single ended data, analog or

control lines

? Available in AC or DC versions

? Impact and weather resistant enclosure with

locking hinged cover

Description

The HyperLink AL-D15P series are designed to provide superior lightning and surge protection for RS-485 control

and AC/DC power lines. These protectors incorporate individual protection circuits for the RS-485 control lines and

AC/DC power lines. All housed in one weatherproof resistant enclosure.

RS-485 Control Lines

A high power 3-stage design is used to provide protection for the RS-485 control line. The 3-stage design can

handle higher-level transients than a protector that uses only diodes. The first stage is comprised of a differential

gas discharge tube. Stage two is a pair of current limiting series resistors and the final stage is a low capacitance

diode array. The use of three terminal differential gas discharge tubes provides superior common and differential

mode protection against conducted transients versus the use of lower

cost two terminal tubes. The second stage series resistance limits the

power dissipation of the fast diode clamp array in the third stage.

This allows time for the slower but higher power gas tubes to flash

over. The diode array clamps the leading edge of fast transients to

safe levels until the high power gas tubes turn on. This eliminates the

damaging leading edge spike that single stage gas tube protectors let

leak through. The diode array’s low capacitance assures that the

protector will not degrade the high-speed signals. The RS-485 control

line is connected to the protector via its screw terminal blocks. The

AL-D15P series is designed to work with 1 half duplex RS-485 line.

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