The user installable IEEE 802.3 Ethernet module installs on the back of the printer (in place of the cover plate) and supports 10Base-T and 100Base-TX LAN communications. RJ45 CAT 5 cables up to 100m in length are supported. (PC23 Ethernet module has light case and PC43 Ethernet module has dark case, RoHS).. Network Protocols Supported: TCP/IP, FTP, SNMP, LPR, HTTP.. Network. Networking standards. IEEE 802.3. Copper ethernet cabling technology. 100BASE-TX, 10BASE-T. Ethernet LAN data rates. 10,100 Mbit/s. Ethernet interface type. Fast Ethernet. Ports & interfaces. Ethernet LAN (RJ-45) ports. 1. Performance. Compatibility. PC43dPC43t. Certificates. Certification. RoHS. Logistics data. Harmonized System (HS) code. 85176990