日本少妇xxx,亚洲免费综合色图,julia一区二区三区中文字,色图图av

<label id="u77v3"><del id="u77v3"></del></label>

    <span id="u77v3"></span>

    2. <label id="u77v3"></label>
    <rt id="u77v3"><optgroup id="u77v3"><strike id="u77v3"></strike></optgroup></rt>
    
<form id="u77v3"><strong id="u77v3"><blockquote id="u77v3"></blockquote></strong></form>
    <li id="u77v3"></li>
    <span id="u77v3"></span>
      <i id="u77v3"></i>
      <span id="u77v3"><optgroup id="u77v3"></optgroup></span>
      

      
    
      
         
      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
      
                    
                    
                
      

            
      
            
      
            	
                 
                 
      
                 	
      
                        
      
                           
      
							
							
                               
      
                               	  
                               	  
                               
      
						   
      
                        
      
                    	
      
                        	 
      
                             	
                                
                             	
      
                                    
        
                                         
                                         
        • 
                                         
                                         
        • 
                                         
                                    
      
                                
      
                            
      
                            
                        	
      E1-60PCM Multiplexer
      
                            
      Type:FCC-E2O60/FCC-E2S60 Message
      
                            
      Description:2E1 to 60*Voice converter;
      
                        
      
                    
      
                 
      
                 
                 
                 
                 
      
                     
      
                 	    Product Description
                     
      
                     
      
                 	         This device is 1U High which provides telephone outputs 60 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 2*E1 leased lines used in computer networking this equipment can be rented at the E1 line opened a few line 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;
      

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

      
	◆   Voice port support FXS/FXO/2 wire audio interfaceFXO port connect to PBXFXS port connect to user side telephone.
      
◆   60*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;
      
◆   Support Console manager and SNMP agent manager inside
      
◆   Multiple power mode options: AC220V DC-48V/DC+24V etc
      

                     
      
                 
      

                 
      
                     
      
                 	    Technical Parameters
                     
      
                     
      
                 	    ◆   E1 Interface
      
Interface Standard: comply with protocol G.703;
      
Interface Code: HDB3;
      
E1 Impedance: 75Ω (unbalance) 120Ω (balance);
      
Jitter tolerance: In accord with protocol G.742 and G.823
      
Allowed Attenuation: 0~6dBm
      
Interface Rate: n*64Kbps±50ppm;
      
◆   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: 0dB 
      
Two/Four-line Impedance: 600 Ohm
      
Return loss: 20 dB
      
◆   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
                     
      
                     
      
                 	    
      
	Network Application
      

      
	 
      

      
	
      

                     
      
                 
      

                 
      
                     
      
                 	    DataSheet Download
                     
      
                     
      
                 	    
                     
      
                 
      

                 
            
      
        
      
	
      

      


?