n The length of the cable between a link board (PC) and a link board
(Box) is limited to 10 m (patch cable) and 100 m (fiber-optic cable).
n You cannot connect the dSPACE boards that are currently being
offered to the host PC via DS811 and DS812 Link Board.
n The DS815 and DS821 link boards do not support Hot-Plug mode
(= installing and uninstalling the boards while the PC is powered).
n After installing a DS815 or DS821, your host PC cannot switch to
stand-by mode.
Other limitations
How to Establish the DS817/DS819 <–> DS814 Bus Interface
The following instructions apply if you want to install a bus
connection with the link boards DS817/DS819 and DS814.
Objective
Use only the cables (crossed-over patch cable or fiber-optic cable)
which come with the hardware package.
Cables
n The system is switched off. For instructions, refer to How to Switch
Off a dSPACE System on page 37.
n A link board (DS817 or DS819) is installed in your host PC.
n The DS814 is installed in your expansion box.
Preconditions
There are two ways you can establish a bus connection:
n Via crossed‑over patch cable. Refer to Method 1.
n Via fiber-optic cable. Refer to Method 2.
Possible methods
To establish the bus interface via crossed‑over patch cable
1 Connect the DS817 or the DS819 to the DS814.
Do not connect the crossed‑over patch cable to an
Ethernet LAN or the LAN connectors of a PC or a
notebook.
2 Switch on the system. Refer to How to Switch On the dSPACE
System on page 41.
Method 1
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Connecting an Expansion Box to the Host PC
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58
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DS1103 Hardware Installation and Configuration November 2014
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