The maximum channel number: 4-ch video + 1-ch duplex data+ 8-ch contact closure + 1-ch duplex audio + 1-ch ethernet or 4-ch video +5-ch duplex data + 2-ch duplex audio + 1-ch ethernet;

 

Immunity to electrical inteference, ground loops radio frequency interference;

Audio interface: Phoenix connector, 600Ω (unbalanced), 24bit/96KHz sampling;

 

Data interface: Phoenix connector, RS232  and RS422 and RS485 multi ptotocol;

 

Ethernet  interface: RJ45, 10/100Mbps, compiance with IEEE 802.3/IEEE802.3u protocols;

 

Telephone interface; Phoenix connector, PCM coding,64kbps, 600Ω (hook);

 

Acceptable highest optic loss budget for single-mode fiber: >18dB;

 

Multi-stages lightning and surge protection.