 We offer three series of mounting frames for Krone style IDS connection blocks. The '515' Series are available either flush or recessed mounting and accommodate up to 15 blocks in three strips of 5 vertically. The units are 3U high and the recessed units are set back 110mm. The '918' Series are available either flush or recessed mounting and accommodate up to 18 blocks in three strips of 6 vertically. The units are 4U high and the recessed units are set back 110mm. The '921' Series are available either flush or recessed mounting and accommodate up to 21 blocks in three strips of 7 vertically. The units are 4U high and the recessed units are set back 110mm | 
