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SP-Bus

SP-Bus (SCHAEFER-Panel-Bus) is a system for simple wiring of landing and indicator fixtures from SCHAEFER. For the SP-Bus no PC configuration is necessary. At the displays / nodes just the floor is set by means of DIP switches respectively via a menu. With regard to the controller, the polarity, the connection method (3-wire/4-wire), etc., can be set by means of jumpers at the modules. Thus the bus is suited for all controllers using digital I/O signals.

Only four lines are required for wiring: two lines for the power supply and two lines for signal transmission. These must be twisted pair wires. The SP-Bus is bi-directional, i. e. signals can be sent both to the fixtures (e. g. indicator fixture) as well as from the fixtures to the controller (e. g. call button signal). The function of the bus node is integrated in the displays (DMD SP and Touch TFT); thus, no additional bus node needs to be mounted in the fixture. Further elements such as buttons and indicators can be connected to the Displays.

  • suited for individual installations
  • Topology: main line with branch lines
  • Bus length: max. 200 m
  • Branch line length: each max. 1 m
  • Transfer rate: 50 KBit/s
  • Number of participants: max. 63 Displays 

Wiring of the SP-Bus is done by means of simple plug-in connectors. The main line is connected with the Display Modul/Button Modul and runs through the shaft. Further modules can be connected by means of jumper cables. SP-Bus cables are of 4-pole type: two lines for the power supply and two lines for data transmission. These must be twisted pair wires. At each floor, female connectors are crimped to the main line (no special tool required). The branch line is the connection between female connector and display/node. Using the ribbon cables additional elements like buttons, switches or arrows can be connected.

More information: Topology

Part number: 160
The Bus-Connector is required for connecting the DMD 30/35 SP to the SP-Bus. Furthermore, additional elements like call buttons, key switches and arrows may be connected...
Part number: 159
The Bus-Connector Car is required if the DMD 30/35 SP is incorporated into a cabin control panel. Here the connection options include 6 cabin calls + 2 special pushbuttons (door button, key switch), 8 special indicators or an MFD 99...
Part number: 158
The Button Module converts individual input signals to serial SP-Bus signals. SP-Bus signals from the fixtures are converted to individual output signals. The module is mounted in the control box and connected with the lift controller. By means of the jumpers the Button Module can be adjusted to the..
Part number: 161
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 requir..
Part number: 172
For connecting an SP-Bus Node in the cabin...
Part number: 157
The Display Module converts individual input signals to serial SP-Bus signals. It is mounted in the control box and connected with the lift controller. By means of the jumpers the Display Module can be adjusted to the controller...
Part number: 168
Female connector: crimp type connection with main line..
Part number: 162
The SP-Bus Node is incorporated in the call and indicator panels and allows connection of the SP-Bus, as well as elements such as the call button, arrows, special indicators and key switch. If required, the key switch can be configured as a means of encryption for the calls, while the volume of the ..
Part number: SP-Bus
SP-Bus (SCHAEFER-Panel-Bus) is a system for simple wiring of landing and indicator fixtures from SCHAEFER. For the SP-Bus no PC configuration is necessary. At the displays / nodes just the floor is set by means of DIP switches respectively via a menu. With regard to the controller, the polarity, the..
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