5Model 4520 & 4110 Series Getting Started Guide ContentsVoice Routing—Session Router ............................................................................................................................57IP services..............................................................................................................................................................57Management .........................................................................................................................................................58Operating Environment ........................................................................................................................................58Operating temperature ....................................................................................................................................58Operating humidity ........................................................................................................................................58System ...................................................................................................................................................................58Compliance ...........................................................................................................................................................58Dimensions ...........................................................................................................................................................58Weight ..................................................................................................................................................................59Power supply .........................................................................................................................................................59AC version ......................................................................................................................................................59DC version .....................................................................................................................................................59Power dissipation ............................................................................................................................................59B Cabling ......................................................................................................................................................... 61Introduction ..........................................................................................................................................................62Serial console .........................................................................................................................................................62Ethernet 10Base-T and 100Base-T ........................................................................................................................63Analog FXS ...........................................................................................................................................................64C Port pin-outs ................................................................................................................................................ 65Introduction ..........................................................................................................................................................66Console port..........................................................................................................................................................66Ethernet 10Base-T and 100Base-T port.................................................................................................................66FXS port................................................................................................................................................................66