Multicom MUL-1310TX-1000-8 Optical Transmitter - AS IS 144866942067 and the select button works

and the select button works

Manufacturer Meterman Model Number DM7 SKU 19-41155 Ref 23-93573

Includes Telephone Audio Interface as pictured

Manufacturer NEC Model Number CD-PVAA SKU 19-66716 Ref 23-94710

Multicom MUL-1310TX-1000-8 Optical Transmitter - AS IS 144866942067 and the select button worksThis item is sold AS IS. No returns or exchanges are accepted. Condition For parts or not working Description This unit has been tested, and the select button works, but up and down arrows don't seem to do anything. The display is dim unless the laser on the button is engaged. Only one of the power supply tuned the unit on. For this reason, we are selling the unit AS IS for parts repair as a non working or incomplete unit. We have not tested inspected