10BASE-T1L Ethernet chips enable up to 1.7 kilometer long Ethernet cables
The maximum length of Ethernet cables used to be 100 meters. While that may be more than enough for most applications, it does not cut it for industrial communication applications. So the 10BASE-T1L Ethernet physical layer standard (IEEE 802.3cg-2019) was approved by the IEEE on November 7, 2019 to allow for cables over one kilometer using a single twisted-pair cable. Analog Devices has launched two 10BASE-T1L Ethernet chips with ADIN1100 Ethernet PHY and ADIN1110 Ethernet MAC-PHY that allow for up to 1.7 kilometer long Ethernet cables. Let’s check out ADIN1100 specifications for reference: 10BASE-T1L IEEE Std 802.3cg-2019 compliant Cable Reach 1700 meters+ with 1.0 V pk-pk 1700 meters+ with 2.4 V pk-pk Auto-Negotiation capability Supports intrinsic safety applications MII, RMII & RGMII MAC interfaces MDIO Management Interface Unmanaged configuration using pin strapping including: Master/Slave selection Transmit amplitude PHY address 25 MHz crystal oscillator/25 MHz external clock input (50 MHz external […]