HPE MSR 1-Port E1/T1 Voice SIC Module - For Voice - 1 x T1/E1 NetworkT1/E1 - TAA Compliance
HPE MSR 1-port E1 / T1 Voice SIC Module has up to 31 channels VPM integrated, can be switched between E1 and T1, also support both 75ohm(BNC)/120ohm(RJ45) interface cable.