Ex-calibur 10 line IPM insert able in krone module with LED indications. This will protect 10 trunk or extension ports of PBX.
Ex-calibur telephone line surge protection unit with LED indication - 1 line. This will protect 1 trunk port of PBX.
Ex-calibur telephone line surge protection unit with LED indications - 2 line. This will protect 2 trunk ports of PBX.
Ex-calibur telephone line surge protection unit with LED indication - 3 line. This will protect 3 trunk ports of PBX.
Ex-calibur telephone line surge protection unit with LED indication - 4 line. This will protect 4 trunk ports of PBX.
Ex-calibur 10 line IPM insert able in krone module with LED indications. This will protect 10 trunk or extension ports of PBX.
