 19" blank mounting frame - REQUIRED FOR MOUNTING MODEL #TW-7W, #XP-US-PG, and #XP-4PGM. The 90027428000 19" Rackmount Blank Panel from Telex is a blank mounting frame that can be used to mount select Audiocom wired intercom accessories in your rack. Devices that are compatible with this unit include: -TW-7W -XP-US-PG -XP-4PGM -XP-ES4000 |