TEBS E
5
braking system
33
5.7.3 Multi-Voltage
Vehicle type
Semitrailer, central axle trailer with maximum 4S/2M system.
Semitrailer, central axle trailer with maximum 4S/2M+1M system.
Semitrailer, central axle trailer and drawbar trailer with a 4S/3M sys-
tem.
Purpose
The TEBS E Modulator (multi-voltage) 480 102 080 0 can be operated with 12 V
towing vehicles as well as with 24 V towing vehicles.
TEBS E multi-voltage no longer supports the PLC communication with the towing
vehicle common in the US. This may mean that the TEBS E warnings are not dis-
played in the dashboard of US trucks.
Connection of the TEBS E Modulator (multi-voltage) with the tractor
For installation and use in mixed operation, an extra 12 V coded connection socket
must be installed in addition to the 24 V coded ISO 7638 connection socket:
• 24 V connection socket with CAN signal (446 008 380 2 or 446 008 381 2)
Use power cable 449 173 … 0 for connecting the 24 V connection socket for
example.
• 12 V connection socket without CAN signal (446 008 385 2 or 446 008 386 2)
Use a 5-pin (if necessary 7-pin) cable for connecting the 12V connection socket.
• 12 V connection socket with CAN signal (446 008 385 2 or 446 008 386 2)
Use a 5-pole (7-pole with 12 V CAN support) cable to connect the 12 V connec-
tion socket.
A 'Y' power cable must be made using a cabling box to connect the 24V and the
12V connection.
Multi-voltage capable functions
Because there is normally no CAN signal in 12 V towing vehicles, the ‘Brake’ con-
trol pressure is only transferred to the trailer pneumatically.
The following components can be connected:
• External pressure sensors on GIO1 or GIO3
• Buttons and switch inputs (e.g. for road finisher brakes) on the GIO1-7
• Brake lining wear indication (BVA) an GIO1-4 or GIO6-7
• SmartBoard or IVTM on SUBSYSTEM
Different GIO functions are available, depending on the TEBS E version. 12 V
valves are connected for this purpose.
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