Modular

Voice number: 4/8/16/30 Ports FXO/S
E1 : 4/8 E1 connector 75ohm BNC or 120ohm RJ45 connector
Ethernet : 4 ports10/100Mbps 4*Ethernet 802.1Q VLAN
Data : 2/4 channels RS232 or RS485 or RS422
Power supply: AC220V & DC-48V
Optical : dual fiber SM or Single fiber WDM
Optical type : SFP
Fiber : 1+1 fiber back up
Fiber Distance (KM): 20/40/60/80
Management: LCD-SNMP
Console