[USR-TC] DMS-100 and TC

We are connected to a DMS-100 PSTN by E1 R2. Our chassis has 5 Hiper DSP cards and Hiper ARC with 64Mb RAM 8Mb Flash. Is this memory enough for this Hiper ARC to work with fully loaded DSPs (150 connections) without any problem? HiperARC software V5.2.102 (Hardware revision 21.0.0).