5 First steps
39
• Do not route Data bus cables in the vicinity of electric power
cables.
• Ensure sufficient power supply by supplying each meas. box
with mains voltage.
• The cables should ideally be plugged in before the system is
switched on. Connecting during operation (hot plugging) is
possible, however, depending on the combination the system
may need to be switched off and on again.
• The connection cannot be separated under load.
• Data bus subscribers: max. 16 meas. boxes in one Data bus
system.
• Cable length: max. 100 m between Control Unit and meas. box,
max. 800 m between all meas. boxes in the Data bus system.
• The bus system must have a defined electrical termination, see
below.
Electrical termination of the bus system
The Data bus system is linear in structure. The Control Unit or the
Testo Data bus controller with USB connection represents the
beginning of the line.
The end is represented by the last components connected in the
system (meas. box or analog output box). This component must
have a defined electrical termination.
An analog output box is the furthest subscriber.
> Plug the Data bus termination plug into the Data bus socket on
the analog output box.
A meas. box is the furthest subscriber.
> Set the Data bus terminating slide switch on the meas. box (see
Connections / interfaces page 28, point 1) to switch position
right (
).
5.2.4.3.
Connection via Bluetooth
®
(option)
or
Summary of Contents for 350 Maritime V2
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