Cable-sharing adapter for the simultaneous operation of two 4-wire services, here: 1x Ethernet and 1x ISDN telephone, over an 8-wire installation cable. Serves as an RJ45 port doubler, e.g., for a permanently installed CAT 5 network cable. Suitable for structured cabling. With FTP shielding. Connections: 1x RJ45 plug and 2x RJ45 sockets, 1x PIN 1-2-3-6 and 1x PIN 3-4-5-6. Always used in pairs: one adapter at the connection socket, one adapter at the distributor. Metalized housing ensures the durability of the T-adapter. Works only with Fast Ethernet 10/100 MBit. Not applicable for Gigabit or PoE.