30Voice over E1(1+1)for redundancy PCM MUX
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- Type : voice over E1
- Description :
The device is to provide two E1 access 1 +1 backup protection
The device is to provide two E1 access 1 +1 backup protection
The device is to provide two E1 access 1 +1 backup protection ,30 phone output .part of the device is whole digital circuit .the device is reliable , low power consumption, high integration, small size, Easy to install and maintain. Many telecom operators customers rent E1 line , then they can use this device to open 30 telephone by the Rented E1 line, so that the headquarters and the branch can communicate by phone freely.
● 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;
◆ 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: 19inch 485X200X45mm(WXDXH)
Simple packaging: 9inch 522X198X82mm(WXDXH)
Piece Weight : 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)
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