TrueTime Symmetricom XL-DC 86-395 RS-232 Serial I/O Modem Option Add In Card [Refurbished]
( 285228942000) )
TrueTime XL-DC 86-395 Modem • RS-232 Serial Data I/O Interface Card • Expansion Option • Add-In Modem Card • Used, Very Good Condition
Removed from a working XL-DC chassis and confirmed to present a config option via the function menu, so I believe that the card is working as it should.
Sorry, I don't have any additional technical data. The photos show the actual item for sale.