HP 1810-8 Installation And Getting Started Manual page 48

For 100 Mbps connections to the ports, use 100-ohm Category 5 UTP or
■
STP cable only, as supported by the IEEE 802.3u Type 100BASE-TX
standard.
■ For 1000 Mbps connections, 100-ohm Category 5e or better cabling is
recommended.
Specifications
Twisted-Pair Cable/Connector Pin-Outs
A-9