Telecync TSI-4515 Dual DS-3/DS-1 Drop/Insert with DS3 Berts. Provides a cost effective means of dropping and inserting selected DS-1 channels from a DS-3 network. Portable chasis.

Telesync TSI-4515 ( TSI-4515-M5 ) DS-3/DS-1 Drop/Insert

Telesync TSI-5320-2 with TSI-5320-4S OC-48 / STM-16 TX. Bargain Basement terms apply - see full description.