Ethernet interface(10/100M)
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
EM 2/4 Line
AD: 0dB
DA: 0dB
Two/Four-line Impedance: 600 Ohm
Return loss: 20 dB
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)