国产AV中文字幕,一区啪啪视频,人人看卜人摸,中韩日精品操逼网站电影

Hello, Welcome to FCTEL Technology Co.,Ltd
National service hotline:+086 0571-87007055/56/57 CN

WE ONLY FOCUS ON TRANSMISSION AND ACCESS

Products center

E1-30PCM Multiplexer

Type:FCC-O30/S30 Message

Description:E1-30 * telephone19\'\'inch 1U Support 6U rackmount SNMP

Product Description
              This device is 1U there 6U rack card type which provides telephone outputs 30 Equipment electrical part for the whole digital circuits machine reliability stability low power consumption high integration small size easy installation and maintenance. Many customers are telecommunications operators E1 leased lines used in computer networking this equipment can be rented at the E1 line opened a few road phone you can make free calls between headquarters and branch offices of this.
Functional Properties

◆   based on proprietary integrated circuits;

◆   alarm status can be monitored on the end;

◆   E1 interface complies with G.703 all-digital clock recovery and smooth phase-locked technology;

◆   support FXO voice port FXS ports and ports EM2 / 4 audio interface FXO port and PBX docking port

      and the user is connected to FXS telephone;

◆   30 road voice access support caller ID function and reverse polarity billing functions;

◆   Support Telephone Number mutual function of each site;

◆   E1 signal can be detected as a barrier to the end device is lost or shut E1;

◆   multiple power mode options: AC220V DC-48V / DC24V etc;

Technical Parameters

◆   E1 Interface

    Interface Standard:      comply with protocol G.703;
    Interface Rate:             n*64Kbps±50ppm;
    Interface Code:            HDB3;

    E1 Impedance:             75Ω (unbalance) 120Ω (balance);

    Jitter tolerance:            In accord with protocol G.742 and G.823

    Allowed Attenuation:   0~6dBm

◆   FXS Phone Interface

    Ring voltage: 75V

    Ring frequency: 25HZ

    Two-line Impedance: 600 Ohm (pick up)

    Return loss: 40 dB

u  FXO Switch Interface

    Ring detect voltage: 35V

    Ring detection frequency: 17HZ-60HZ

    Two-line Impedance: 600 Ohm (pick up)

    Return loss: 40 dB

◆    EM 2/4 Line

    AD: 0dB

    DA: -3.5dB

    Two/Four-line Impedance: 600 Ohm

    Return loss: 20 dB

◆   Power

    Power supply: AC180V ~ 260V；DC –48V；DC +24V

    Power consumption: ≤10W

◆   Dimension          

    Product Size:    Mini Type    216X140X31mm(WXDXH)

                          19inch       485X200X45mm(WXDXH)

    Simple packaging:  mini   274X193X84mm(WXDXH)

                            19inch    522X198X82mm(WXDXH)

    Piece Weight :    mini 1KG / 19inch  2.4KG

 ◆   Working environment

    Working temperature: -10°C ~ 50°C
    Working Humidity:        5%~95 % (no condensation)

    Storage temperature:   -40°C ~ 80°C
    Storage Humidity:         5%~95 % (no condensation)

 

 

 

 

 
Application Scheme

Applications

DataSheet Download
?
日韩亚洲制服欧美综合| 国产综合精品一区三区| 亚洲国产自产精品在线| 性视频一区二区欧美三区| 中文av不卡在线观看| 女女同恋一区二区在线观看| 国产精品一区二区三区Av| 自拍愉情| 亚欧AV| 亚洲天堂高清无码| 亚洲VA欧美va国产va综合| 男人艹女人高潮视频免费播放| 欧美一级做a爰片久久高潮| 高潮毛片无遮挡高清视频| 丰滿岳妇DvD| 又黄又爽免费视频| 亚洲精品视频一二三四在线观看| 99精品免费视频| 无码中文字幕AV免费放| 18禁男女午夜无遮挡网站免费| 久久久久久都是精品免费 | 中文字幕亚洲综合久久蜜桃 | 亚洲日韩欧洲日本国产综合| 国产真实偷人视频在线播放| 亚洲aⅤ精品无码一区二区| A老人free性欧美| 国产第一视频一区二区三区| 好叼色视频| 国产日韩欧美一区二区| 久久久久久久国产AV| 亚洲操逼一区二区视频| 亚洲中文字幕无码乱码| 久久夜精品国产欧美乱| 国产第五5页| 2021免费国产精品| 四虎影院美女| www.日韩丝袜美腿综合A| 日本a视频| 欧洲精品久久久久| 久久精品亚洲中文| 亚洲成人精品中文字幕第二区|