
Hardware Installation
2. Hardware Installation
Read the safety instructions at the beginning of this document carefully, before
you start with the hardware installation!
DANGER
Device of protection class III
The CAN-AIR/2 may only be driven by power supply current circuits, that are contact
protected. A power supply, that provides a safety extra-low voltage (SELV or PELV)
according to EN 60950-1, complies with this conditions.
Functional earthing is allowed, but must not conflict with the safety considerations of the
system.
Installation procedure:
1. Connect the antenna to the antenna socket.
NOTICE
Do not remove the antenna during operation!
Do not touch antenna socket during operation, this may lead to malfunction due
to electrostatic discharge.
2. If a PC is used in your application, connect the USB bus of the PC via the attached USB-cable
to the USB socket of the CAN-AIR/2 module selected.
3. CAN-AIR/2 modules which are not connected to USB need an external 12/24VDC power
supply.
DANGER
The CAN-AIR/2 must be supplied by a limited current source (see chapter 5.1)!
Connect the 24VDC power supply voltage and the reference potential by means of the attached
24V connector to the 24V connector of the CAN-AIR/2.
Please note the pin assignment of the 24V connector (see page 38)!
4. Connect the CAN bus to the 9-pin male DSUB connector.
Please remember that the CAN bus has to be terminated at both ends.
esd
offers T-connectors
and terminators. Additionally, the CAN-GND-signal has to be grounded at
exactly one
point in
the CAN network.
A CAN device whose CAN interface is not electrically isolated corresponds to the grounding of
the CAN-GND.
5. Switch on the PC, the peripheral devices, the 12/24V power supply and the other CAN bus
devices, if not already done.
6. End of hardware installation.
7. Install the CAN driver as described in chapter 'Software Installation'.
CAN-AIR/2
Hardware Manual • Doc. No.: C.2067.21 / Rev. 1.5
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