This table provides the devices for each of the buses in a BladeCenter HT chassis.
| Bus | Device |
|---|---|
| 0 | Advanced management module (internal) |
| 1 | Local advanced management module (internal) |
| 2 | Not used |
| 3 | Not used |
| 4 | Not used |
| 5 | External buses 6-13 (Chassis) |
| 6 | Chassis presence detection |
| 7 | Media tray |
| 8 | External buses 14-21 (I/0 modules) |
| 9 | External buses 22-25 (Power) |
| 10 | External buses 26–29 (Fans) |
| 11 | External buses 30–31 (Clocks) |
| 12 | Presence Detection (network, Media Tray) |
| 13 | Not used |
| 14 | I/O module 1 |
| 15 | I/O module 2 |
| 16 | I/O module 3 |
| 17 | I/O module 4 |
| 18 | I/O module (HSS 1) |
| 19 | I/O module (HSS 2) |
| 20 | I/O module (HSS 3) |
| 21 | I/O module (HSS 4) |
| 22 | Power module 1 |
| 22 | Power module 2 |
| 24 | Power module 3 |
| 25 | Power module 4 |
| 26 | External Buses 32-33 (Fan 1) |
| 27 | External Buses 34-35 (Fan 2) |
| 28 | External Buses 36-37 (Fan 3) |
| 29 | External Buses 38-39 (Fan 4) |
| 30 | Clock 1 |
| 31 | Clock 2 |
| 32 | Fan 1 |
| 33 | Fan 1 |
| 34 | Fan 2 |
| 35 | Fan 2 |
| 36 | Fan 3 |
| 37 | Fan 3 |
| 38 | Fan 4 |
| 39 | Fan 4 |