Key feature:l        16xslot, in which 2xslot for main control board (support backup board), 2xslot for power supply board (support backup board), 12xslot for service boardl  Powerful cross connection function²        SDH interface provides 6x6 STM-1 cross connection network²        Main control board provides 2048x2048 cross connection network based on 64k²        PDH service board provides maximum 48x48 timeslot cross connection based on 2Ml  Large interface capacity²        Maximum 48xPDH interface and 192xE1 interface ²        Maximum 48xE1/V.35 interface converter or 96xE1/Ethernet interface converterl  Advanced SNMP NMS based on Gaoke Communications self-developed iGoview