Compact Switch Module CSM 1277 for connecting SIMATIC S7-1200 and up to 3 further nodes to Industrial Ethernet with 10/100 Mbit/s; unmanaged switch, 4 RJ45 ports, ext. 24 V DC power supply LED diagnostics, S7-1200 module incl. electronic Equipment Manual on CD-ROM
Siemens CSM 127, Fast Ethernet, 10,100 Mbit/s, 10BASE-T, 100BASE-TX, IEEE 802.3, IEEE 802.3u, Germany
Siemens CSM 127. Ethernet interface type: Fast Ethernet, Ethernet LAN data rates: 10,100 Mbit/s, Copper ethernet cabling technology: 10BASE-T, 100BASE-TX. Country of origin: Germany