256*voice +4GE voice optical multiplexer

• Based on self -copyright IC
• The equipment for 4U 19 inch a total of optical port plate with 16 function board. 
• Maximum configured to call 256,if you want to configure SNMP Network management need to remove a 16 way call boardconfiguring 1*N E1 board needing to remove a 16 way call board too. 
• 250 Channel voice access, supports caller ID feature and reverse polarity billing functions 
• Support various sites mutual number allocation function
•  Voice port supports FXO and FXS port,, FXO port docking with program-controlled switchboard, FXS port connected to the user's telephone 
• 4Channel Ethernet interface is switch interface, support VLAN
•  Ethernet interface rate is 10/100M,duplex/half duplex adaptive
•  Can command the remote interface loop back to maintain the circuit 
• The transmission distance is up to 2-120Km without interruption 
• AC 220V, DC-48V, DC24V can be optional
•  DC-48V/DC24V power has polarity automatic detection function, you can install the device without differentiation between positive and negative polarity. 
• telephone interface with lightning protection, lightning reached 17626.5 (IEC61000-4-5) Short circuit current wave 8 / 20μs, open-peak output voltage 6KV standards.

  Fiber
         Multi-mode Fiber
    50/125um, 62.5/125um,
    Maximum transmission distance: 5Km @ 62.5 / 125um single mode fiber, attenuation (3dbm/km)Wave Length: 820nm
    Transmitting power: -12dBm (Min) ~-9dBm (Max)
    Receiver sensitivity: -28dBm (Min)
    Link budget: 16dBm
        Single-mode Fiber
    8/125um, 9/125um
    Maximum transmission distance: 40Km
    Transmission distance: 40Km @ 9 / 125um single mode fiber, attenuation (0.35dbm/km)
    Wave Length: 1310nm
    Transmitting power: -9dBm (Min) ~-8dBm (Max)
    Receiver sensitivity: -27dBm (Min)

    Link budget: 18dBm

  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

  Ethernet interface(100/100M)
    Interface rate:              10/100 Mbps, half/full duplex auto-negotiation
    Interface Standard:      Compatible with IEEE 802.3, IEEE 802.1Q (VLAN)
   MAC Address Capability: 4096

    Connector:                  RJ45, support Auto-MDIX

 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

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

    Power consumption: ≤10W

  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)