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
E1 Interface	Interface standard: Conforms to G.703 standar d Interface rate: N×64Kbps, N:1～32 Vibration characteristic: Satisfies G.742 and G. 823 standard Transmission capacity: 1E1 Clock type:* internal-clock, route clock Connecter: BNC (75 Ω Interface impedance: 75Ω (non- balanced)
FXS	Alarm voltage: 75V Alarm frequency：25HZ 2-line input impedance: 600Ω (hanging off) Wastage: 40db
FXO	Alarm detecting voltage: 35V Alarm detecting frequency: 17HZ-60HZ 2 line input impedance: 600Ω (hanging off) Wastage: 40db
Power supply	working voltage range wide, good anti-disturb and Isolation, work stable option I – DC-48V, range DC-36V~DC-72C option II – AC220V, range AC90V~AC260V Power Consumption: <=3 Watts
Environment condition	Operating temperature: 0C~+50 C Storage temperature: -20 C~+70 C Relative temperature: 95% (uncondensed)
Dimension	433mm(L) x 238mm(W) x 44mm(H)

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