Basic Operation and Installation
Rev 1.5
Mellanox Technologies
22
4.2
QSFP Cable Power Budget Classification
The SwitchX® EVB QSFP ports are designed for active cables with a max power per module of
2W. Typical power per port is 1.5W.
4.3
SFP+ Cable Power Budget Classification
The SwitchX EVB SFP+ ports are designed for active cables with a max power per module of
1.5W. Typical power per port is 1W.
4.4
Interfaces
4.4.1
Port Connector Interfaces
4.4.1.1 36 Port Switches
The Connector side of the switch EVB has 24 QSFP ports and 12 SFP+ ports. These are placed in
two rows, 18 ports to a row. The ports are labelled as shown in Figure 12. The bottom row ports
are flipped from the top row. See Figure 13 for bottom row - top row port orientation.
Figure 12: Port Numbering
4.4.1.2 Top and Bottom Orientation
Figure 13: Top and Bottom Ports
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
2 0
2 1
2 2
2 3
2 4
2 5
2 6
2 7
2 8
2 9
3 0
3 1
3 2
3 3
3 4
3 5
3 6
Reference Traces 1,2
Compliance Ports 3,4
Reference Traces 35, 36
Compliance Ports 33, 34
One Trace and compliance pair 1, 3
One Trace and compliance pair 33, 35
One Trace and compliance pair 34, 36
One Trace and compliance pair 2, 4
