Dometic MS880 Instructions De Montage Et De Service page 22

Connecting the electrical power to MagicSpeed
Yellow and blue
I
NOTE
Both these cables are only connected when there is an analogue
connection.
They are not required for the CAN bus connection. In this case, insulate
the ends and store them.
The yellow cable and the blue cable are for connection to the travel speed and
engine speed signals respectively:
• Blue:
Records the engine or travel speed signal with a voltage between 1.5 V and 24 V
and a frequency between 6 Hz and 8.5 kHz.
Use the blue cable for speed signals whose voltage and frequency are within
above-mentioned ranges.
• Yellow:
Records the engine speed signals with a voltage between 6 V and 250 V and a
frequency between 6 Hz and 488 Hz.
Use the yellow cable to record engine speed signals with a voltage of more than
20 V or when engine overspeed protection is required.
I
NOTE
The signal input depends on the vehicle's transmission.
When connecting the blue and yellow cables, there are various parameters to take
into account, which are described in the following sections:
• Which signal input do you wish to use (page 23)?
• Do you need engine overspeed protection (page 23)?
• Does your vehicle have automatic transmission (page 24)?
• Does your vehicle have manual transmission (page 24)?
• Where do you wish to record the speed ( Diagnostic manual)?
• Where do you wish to record the engine speed ( Diagnostic manual)?
• What are the voltage and frequency of the signal ( Diagnostic manual)?
I
NOTE
You can find a diagnostics manual on our homepage.
22
MS880
EN