Beckhoff CB7268, Оригинальное руководство, Страница: 18 / 85

Internal connections
CB7268 18 Version: 1.1
6.3 Internal: BeaCon140
In conjunction with the chipset, the BeaCon140 connector allows flexible extension of the CB7268's I/O
functions. It provides up to 7 PCIe lanes, of which a maximum of 4 can be multiplexed with SATA3.0 (6G)
and a maximum of 4 with PCIe lines, as well as a maximum of 3 PCIe lines with a maximum of 3 USB3.1-
GEN2 lines (see table). DisplayPort, SSIC, SMBus and 1-Wire signals can be fed out via the BeaCon140
connector. The extension board takes care of the configuration of the IO functions. A PIC on the expansion
card contains the configuration data, which are communicated to the board upon connection and thus enable
an uncomplicated and self-configuring extension of the I/O options.
Observe the current limits!
In order to avoid damaging the device, it is essential to observe the following current limits:
A maximum load of 2.8 A per pin must not be exceeded. On account of the different current con-
sumptions of the usable processors the actual current consumption may be lower. The respective
maximum values can be obtained from your distributor on inquiry.
Irrespective of the CPU in use, a maximum total load of 100 W must not be exceeded.
NOTE
Signal mirroring with BeaCon Stack Up connector
With the Stack Up version of the BeaCon connector (connector at the top of the board), a stack is used for
signal transfer to the mating connector. The signals are mirrored on this mating connector (Stack Down).
There is no reflection on the stack.
Fig. 8: CB7268-G2-BeaCon