Kvaser Memorator R SemiPro User’s Guide
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As USB cables become longer they are more sensitive to EMI,
because they make a longer antenna that can pick up more
noise. These issues can be mitigated by using higher quality
cables with better shielding. Thicker cables tend to be better than
thin ones, and braided shielding tends to be more reliable than
only foil. Furthermore, longer cables may introduce signal
degradation and timing issues that, if necessary, can be mitigated
using shorter cable segments combined with hubs that amplify
the signal and handle delays on a per-cable basis.
3.3
CAN channels
The standard Kvaser Memorator R SemiPro has two independent CAN channels in
the 15 pin D-SUB. The product comes with an adapter cable to split the two
channels into two separate connectors if necessary. The CAN connectors in the
adapter cable are also labeled for easy identification.
3.4
Power supply
The Kvaser Memorator R SemiPro can be powered through the CAN connector
and through the USB connector. To operate the Kvaser Memorator R SemiPro in
logger mode, you
must
supply power through the CAN connector.
When you supply power on the CAN connector, provide power on channel 1. See
Section 5.5, CAN connectors, on Page 22 for information on how to connect power
to the adapter cable or directly on the 15 pin D-SUB.
The supply power should be in the range of 6 V to 35 V DC. The power requirement
is around 1 W (maximum). Supplying power on CAN2 is safe, but pointless. The
device will tolerate higher input voltages, up to 48 V DC.
To use the device as a CAN interface or to configure the device for logging, power
supplied through the USB connector is sufficient.
3.5
Flash disk
Due to the high demands placed on a rugged, industrial product such as the
Kvaser Memorator R SemiPro, the memory card is fixed and sealed inside the unit.
The card meets necessary performance requirements including industrial
temperature range.
The selected size of 4 GB should cover most cases. This size provides a balance
between duration logging and overly large logs which are cumbersome to analyze.
Kvaser AB, Mölndal, Sweden — www.kvaser.com
