Kyocera ECOSYS P2135dn Operation Manual page 211

Subnet Mask
This is a 32-bit numerical value that defines which bits of the IP address
specify the network address and which specify the host address.
TCP/IP (Transmission Control Protocol/Internet Protocol)
TCP/IP is a suite of protocols designed to define the way computers and
other devices communicate with each other over a network.
USB (Universal Serial Bus) 2.0
A USB interface standard for Hi-Speed USB 2.0. The maximum transfer
rate is 480 Mbps. This machine is equipped with USB 2.0 for high-speed
data transfer.
Glossary-3