| Specification | 
                                    
                                                                                     Usage: Workstation, Server;
                                                                                     Type: Wired;
                                                                                     Support Network: Ethernet;
                                                                                     Information content: Data;
                                                                                     Condition: New;
                                                                                     Products Name: Digital Input Module;
                                                                                     Channel No: 8 Channels;
                                                                                     Power: [email protected];
                                                                                     Operating Temperature: -40~85ºC;
                                                                                     Ambient Humidity: 5%-95% No Condensation;
                                                                                     Class of Protection: IP20;
                                                                                     Pilot Lamp: 8 Channel Input Lights;
                                                                                     Opening Voltage: 0~15VDC;
                                                                                     Turn-off Voltage: 21~24VDC;
                                                                                     Opening Current: 3mA @24V Per Channel;
                                                                                     Input Impedance: >7.5KΩ;
                                                                                     Switching Delay: Open: 5us off: 3us;
                                                                                     Filtering Time: Default 10ms;
                                                                                     Sampling Frequency: 500Hz;
                                                                             | 
                                    
                                                                                     Usage: Telephone, Computer, Workstation, Mobile phone, Laptop;Type: Wired;
 Support Network: Ethernet;
 Information content: Data;
 Condition: New;
 Single-User Capacity: 6500~20000;
 Power Consumption: 550W;
 Weight: 10kg;
 Trunk Port: Max 60CH FXO, 24e1/T1, 20bri;
 The Number of Meeting Channels: Maximum 2000 Participants, up to 660 Venues, and U;
 
 | 
                                    
                                                                                     Usage: Telephone, Computer, Workstation, Mobile phone, Laptop;Type: Wired;
 Support Network: Ethernet;
 Information content: Data;
 Condition: New;
 Single-User Capacity: 7500~20000;
 Power Consumption: 550W;
 Weight: 10kg;
 Trunk Port: Max 60CH FXO, 24e1/T1, 20bri;
 The Number of Meeting Channels: Maximum 2000 Participants, up to 660 Venues, and U;
 
 | 
                                    
                                                                                     Single-User Capacity: 5500~20000;Power Consumption: 550W;
 Weight: 10kg;
 Trunk Port: Max 60CH FXO, 24e1/T1, 20bri;
 The Number of Meeting Channels: Maximum 2000 Participants, up to 660 Venues, and U;
 
 | 
                                    
                                                                                     Usage: Telephone, Workstation, Server, Mobile phone;Type: Wired;
 Support Network: Ethernet;
 Information content: Data;
 Condition: New;
 Single Set of User Capacity: 200~1, 000 (Max. 1,000 IP Users/Simulated Users);
 Terminal Type: Analog Phones, IP Phones, Video Phones, Soft Termi;
 Trunk Interfaces: Maximum 36CH FXO, 4e1/T1, 4bri;
 Signaling Protocol: Pri,Qsig,Ss7,R2,SIP,Bri;
 The Number of Meeting Channels: Maximum 120 Participants, up to 60 Venues, and up;
 
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