T1/ISDN BRI/ISDN PRI/Wireless/K-CCIS Clock unit provide synchronization for T1 lines, ISDN basic and prime rate and wireless ZTII-U connections. The unit is piggybacked on the CPUI-U10 ETU and supports the DTI-U10/20/30 ETUs, BRT-4-U10 ETUs, PRT-1-U10 ETUs and BSU-2-U10 ETUs. |