SamsungSamsung 2 T1 Trunk Card - 46 PRI or 48 ESF Trunks The OS TEPRI2 Card provides two (2) T-1 (ESF) and/or PRI (23b+d) circuits. To accommodate the two (2) circuits the card must be plugged into any "slot in the OS 7400 Main Cabinet except "slots 0 & 3". - KPOS74BTEP/XAR
Mfgr Part#: TEPRI2