肏屄网站,国产在线精品一区二区聂小雨,熟妇综合网,7777AV

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

1+1 E1 30Voice over E1 PCM

Type:FCC-E1O30/FCC-E1S30 Message

Description:The E1 voice reuse device is to provide two E1 access 1 +1 backup protection 30 phone output the device part of the whole digital circuit the whole work is reliable stable low power consumption high integration small size Easy to

Product Description
  The E1 voice reuse device is to provide two E1 access 1 +1 backup protection 30 phone output the device part of the whole digital circuit the whole work is reliable stable low power consumption high integration small size Easy to install and maintain. Many telecom operators are customers rent E1 line you can use the device in the E1 leased line to open 30 telephone so that the headquarters and the branch can be free between the call.
Functional Properties
◆ based on independent intellectual property rights of integrated circuits;
◆ E1 interface in line with G.703 recommendations the use of all-digital clock recovery and smooth phase-locked technology;
◆ Provide two 1 + 1 backup E1 interface the main backup function the main E1 disconnect spare E1 work to ensure that the business is not interrupted;
◆ Voice port to support FXO / FXS / two four-line EM / two-wire audio / magnet phone interface FXO port and program-controlled switches docking FXS port and the user's telephone connected;
◆ 1-30 voice access support caller ID / reverse polarity billing / fax function;
◆ Telephone interface to support the two sides of the site of the number of features;
◆ Can detect E1 signal is lost when the end of the device shutdown or E1 unreasonable;
◆ Two clock modes are available: E1 master clock E1 line clock;
◆ (EA) Ethernet interface to remote loopback (DIG) and command the remote interface to the local loopback (REM) of the Ethernet interface.
◆ Pseudo random code test function (PATT) easy to open the line that can be used as an E1 error meter to use;
◆ A variety of power supply options: AC220V DC-48V / DC24V etc .; support AC + DC; AC + AC; DC + DC and other dual power backup mode;
◆ Telephone interface with lightning protection lightning protection to GB / T17626.5 (IEC61000-4-5) short-circuit current wave 10/700μs open peak output voltage 6KV standard;
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

◆   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
DataSheet Download
?
激情综久久| 国产视频一区二区三区黄片| 搔妇熟女久久| 九九九视频| 江西省| 亚洲精品欧美综合一区二区| 亚洲无码av福利一区| 麻豆久久久| 丝袜亚洲精品中文第一区| 先锋影音av在线| 黄片二区| 你懂得AV网址| 三上悠亚在线播放| 熟女天堂| 日韩无码特黄片| 97AV网| 久久热精品| 亚洲欧美日本中文字幕一区二区| 欧美精品网| 99久久免费精品视频| 亚洲香蕉视频网站| wwwxxx| 亚洲 欧美 日韩 国产 综合| 亚洲综合视频观看| 天堂亚洲精品| 性色aV一区二区三区噜噜| 国久久| 天天爽亚洲中文字幕 | 古丈县| 亚洲中文字幕久久精品无码APP| 丝袜av一区二区| 曰韩av| 蜜桃麻豆WWW久久囤产精品| 熟女影院| 囯产 欧美 另类| 亚洲18禁| 亚洲码欧洲码一二三区| 综合亚洲另类欧美久久成人精品| 澄城县| 久久精品这里热有精品| 欧美精品一区二区久久婷婷|