| Rack | Standard  | 
| requirements | with supplied mounting bracket hardware; 1.0 EIA  | 
| 
 | for each hub. | 
| 
 | 
 | 
| Wiring hardware | Wiring hardware, such as punchdown blocks or patch panels, should be | 
| 
 | complete before installing the hub. | 
| 
 | 
 | 
Model DS508/DS516/DS524 Dual Speed Stackable Hub Installation Guide