An optical line termination (OLT), also called an optical line terminal, is a device which serves as the service provider endpoint of a passive optical network.
A telephone distribution box (DB) is a device that connects and distributes cables for telephone networks. They are used in both small and large-scale network installations. Here are some features of a telephone DB box
TP-Link CPE510 5GHz N300 Long Range Outdoor CPE for PtP and PtMP Transmission | Point to Point Wireless Bridge | 13dBi, 15km+ | Passive PoE Powered w/Free PoE Injector | Pharos Control
XC220-G3v comes with 11ac Wi-Fi standard, offering total data transfer speeds achieving up to 1167Mbps, with 867Mbps over the clearer 5GHz channel, ...