n  provides 4 channel E1/ G.703 for option;

n  provides 2fiber port,1+1 protecion;

n  provides 4 channel 100M (liner) Ethernet ports for option;

n  provides 32 channel voice port, FXO and FXS for option;

n  provides4 channel RS232, rate supports 300-15200 bps for option;

n  Ethernet port 10/100M, full/half duplex auto-adaptable and supports VLAN;

n  Ethernet port supports AUTO-MDIX (twisted cable and straight cable auto-adaptable);

n  1-32 channel voice connection, supports calling indication;

n  Configuration: point to point;

n  Voice port supports O port and S port, O port connects switch and S port connects user’s phone;

Optical interface    

Optical wavelength: single mode 1310nm/1550nm

Fiber: single fiber or double fiber for option

Transmitting consumption: -9dBm/-5dBm

Transmission range: 0-50Km/120Km for option

Optical interface: SC/FC

Receiving and dispatching module: >-6dBm

Optical receiver receiving sensitivity <-36 dBm (BER<10-11)

Fiber circuit code: NRZ code

10/100Base-T Interface

Rate: 10/100M, full/duplex auto-negotiation

Protocol: Support IEEE 802.3, IEEE 802.1Q (VLAN)

MAC Address Entiries: 4096 Entiries

Total Memory Sizes: 64MBits SDRAM

Physical interface: RJ45, support AUTO-MDIX