APC ( PTEL2 ) Chống Sét cho analog/DSL phone lines (2 lines, 4 wires) APC ProtectNet standalone surge protector for analog/DSL phone lines (2 lines, 4 wires) PTEL2 Input Input Connections — Number of Power Cords 1 Surge Protection and Filtering Data Line Protection RJ-45 Modem/Fax/DSL protection (four wire dual line) Data Lines Protected (multi-line … Đọc tiếp APC ( PTEL2 ) Chống Sét cho analog/DSL phone lines (2 lines, 4 wires)