Technical Documentation
Rack Mounting Hole Locations for the JCS1200 Platform
Table 1 specifies the holes in which you insert mounting screws (and cage nuts if needed) to install the mounting hardware required in a four-post or two-post open-frame rack (an X indicates a mounting hole location). The hole distances are relative to one of the standard U divisions on the rack. The bottom of all mounting shelves is at 0.04 in. (0.02 U) above a U division.
Table 1: Open-Frame Rack Mounting Hole Locations
Hole | Distance Above U Division | Large | Chassis | Small | |
|---|---|---|---|---|---|
30 | 17.26 in. (43.8 cm) | 9.86 U | X | ||
27 | 15.51 in. (39.4 cm) | 8.86 U | X | ||
24 | 13.76 in. (34.9 cm) | 7.86 U | X | X | |
21 | 12.01 in. (30.5 cm) | 6.86 U | X | X | |
18 | 10.26 in. (26.0 cm) | 5.86 U | X | X | |
15 | 8.51 in. (21.6 cm) | 4.86 U | X | X | |
12 | 6.76 in. (17.1 cm) | 3.86 U | X | X | |
9 | 5.01 in. (12.7 cm) | 2.86 U | X | ||
6 | 3.26 in. (8.3 cm) | 1.86 U | X | ||
3 | 1.51 in. (3.8 cm) | 0.86 U | X | X | |
2 | 0.88 in. (2.2 cm) | 0.50 U | X | X | |
1 | 0.25 in. (0.6 cm) | 0.14 U | X | ||
