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Cambricon ®
Copyright © 2020 Cambricon Corporation
15
QS
F
P
-DD
MLU290-0
MLU290-1
MLU290-2
MLU290-3
QSFP-DD
QSFP-DD
QSFP-DD
QSFP-DD
1
1
2
5
5
2
4
4
2
5
2
5
4
4
1
1
3
0
3
0
3
0
3
0
QS
F
P
-DD
QS
F
P
-DD
QS
F
P
-DD
2Figure 5.2 CCLINK internal connection topology
CCLINK interconnection between extenders refer to the following figure:
MLU290-0
SerDes 3
MLU290-0
SerDes 0
MLU290-2
SerDes 3
MLU290-2
SerDes 0
MLU290-1
SerDes 3
MLU290-1
SerDes 0
MLU290-3
SerDes 3
MLU290-3
SerDes 0
Rack
Rack
四卡
Server
QSFP-DD
MLU290-0
SerDes 3
MLU290-0
SerDes 0
MLU290-2
SerDes 3
MLU290-2
SerDes 0
MLU290-1
SerDes 3
MLU290-1
SerDes 0
MLU290-3
SerDes 3
MLU290-3
SerDes 0
MLU290-0
SerDes 3
MLU290-0
SerDes 0
MLU290-2
SerDes 3
MLU290-2
SerDes 0
MLU290-1
SerDes 3
MLU290-1
SerDes 0
MLU290-3
SerDes 3
MLU290-3
SerDes 0
MLU290-0
SerDes 3
MLU290-0
SerDes 0
MLU290-2
SerDes 3
MLU290-2
SerDes 0
MLU290-1
SerDes 3
MLU290-1
SerDes 0
MLU290-3
SerDes 3
MLU290-3
SerDes 0
MLU290-0
SerDes 3
MLU290-0
SerDes 0
MLU290-2
SerDes 3
MLU290-2
SerDes 0
MLU290-1
SerDes 3
MLU290-1
SerDes 0
MLU290-3
SerDes 3
MLU290-3
SerDes 0
MLU290-0
SerDes 3
MLU290-0
SerDes 0
MLU290-2
SerDes 3
MLU290-2
SerDes 0
MLU290-1
SerDes 3
MLU290-1
SerDes 0
MLU290-3
SerDes 3
MLU290-3
SerDes 0
MLU290-0
SerDes 3
MLU290-0
SerDes 0
MLU290-2
SerDes 3
MLU290-2
SerDes 0
MLU290-1
SerDes 3
MLU290-1
SerDes 0
MLU290-3
SerDes 3
MLU290-3
SerDes 0
MLU290-0
SerDes 3
MLU290-0
SerDes 0
MLU290-2
SerDes 3
MLU290-2
SerDes 0
MLU290-1
SerDes 3
MLU290-1
SerDes 0
MLU290-3
SerDes 3
MLU290-3
SerDes 0
3Figure 5.3 External CCLINK connection reference
The signal rate of CCLINK is 50 Gbps, and the cable loss is controlled within 10 dB @12.5GHz. It is
recommended to use 1 meter cable with a diameter of 30 AWG or 2 meter cable with a diameter of 28
AWG .
CCLINK interface uses QSFP DD connectors whose pins are defined as follows: