Cellular Router and WiFi in 376 THS

[MattShan]

Have a new 376THS. I have several devices (3) in the upper cabinet. One I can identify as a cellular modem. Attached to the back of that is a 2 antenna box that is obscured by the cellular modem (it is attached by sticky tape). Above that is a smaller back box with lights. See photo. I have no literature in the manual brick.

See photo



I have no idea what those other 2 items are. They are placed such that I am unable to see a model number. The top (in black) is an LCI component, as for the one with antennas, I can’t see anything. Any ideas? And comments on functionality? Thank you.