HP LaserJet Pro 500 Color MFP M570 - Manual (Page 20)

Interface ports
1
3
2
4
1 Local area network (LAN) Ethernet (RJ-45) network port
2 Hi-Speed USB 2.0 printing port
3 Telephone “line out” port for attaching an extension phone, answering machine, or other device
4 Fax “line in” port for attaching the fax phone line to the product
6 Chapter 1 Product introduction ENWW