This node is incorporated into the cabin control panels and includes scope to connect the SP-Bus and elements such as the cabin-call button and special pushbuttons (door button, key switch). The SP-Bus Car Node also includes an emergency light and scope to connect an emergency call button. If required, the key switch can be configured as a means of encryption for the cabin calls. The volume of the acoustic acknowledgement can be configured in accordance with the relevant standard.
| Fixing | |
| Welding studs | M3 × 12 |
| Connectivity | |
| MicroMatch | AWG 28 |
| Screw terminal | 0.14 - 1.5 mm² |
| Control | |
| SP-Bus | X |
| Electrical data | |
| Power supply (smoothed) | 12 - 30 V DC |
| Current consumption (24 V) | 25 mA |
| Polarity | |
| Common cathode | X |
| Recall light emergency light | |
| LED (white) | X |
| U | 12 - 30 V AC/DC |
| I | 80 mA (24 V) |
| Buzzer | |
| Buzzer | X |
| I | approx. 10 mA |
| Other | |
| Temperature range | 0 - +65 °C |
| Configuration | On site by DIP switches or via Config Kit. |
| Pane | |
| Pane (crystal clear) | F 9948, F 9999 |
| Compliance | |
| EN 81-71 Class 1 | F 9948 ESG, F 9999 ESG |
| EN 81-71 Class 2 | F 9948 ESG, F 9999 ESG |
| EN 81-72 | F 9948 wg, F 9999 wg |
Installation on screen LF 9948

Fixing to the screen MA 9999 (individually or twin overlapping) with optional indicator field (e.g. triple)

Fixing to the screen MA 9999 (2 × adjacent)
A cutout is only required if the SP-Bus Car Node is to be used as an emergency light. If the emergency light function is not required, installation without a through-hole is possible.