• Whether you are using an auxiliary power (USB) cable to draw additional power
beyond what is provided by the host switch.
Note
• The gures listed assume that, in every case, both adapter ports are
connected to the host switch. The adapter will not operate properly if only
one port is connected to the host switch.
• Unless noted otherwise, all switch models listed have SFP+ ports that
can be congured for 10Gb. A 10G license upgrade is required for 10 Gb
functionality, and to support an LRM/MACsec adapter with 10G-LRM optics..
• The LRM/MACsec Adapter is used only for its LRM capability with 5320
Series. MACsec is supported natively on the ports the LRM/MACsec adapter
is connected to. MACsec is not supported on the stacking ports.
Table 4: Maximum Number of LRM/MACsec Adapters, by Switch Model and
Connection Type
Switch Model Mode: LRM Only Mode: LRM and MACsec
Two ports
no aux. power
Two ports
0.5A aux.
power
Two ports
aux. power
1
One port
One bypass
aux. power
1
5320-16P-4XE
5320-16p-4XE-DC
2 2 N/A N/A
5320-24T-8XE
5320-24P-8XE
2 4 N/A N/A
5320-48T-8XE
5320-48P-8XE
2
2
4 N/A N/A
1
With 1W optics modules (SR, LR, LRM, 10 km bidirectional, AOC, DAC, and most 1 Gb
optics), use 0.5A auxiliary power sources.
2
On 5320 48-port systems, for each LRM/MACsec Adapter without auxiliary power two
additional SFP+ ports must be unused, for example:
• 5320 48-port systems can support one LRM/MACsec Adapter without auxiliary
power if two additional SFP+ ports are unused.
• 5320 48-port systems can support two LRM/MACsec Adapters without auxiliary
power if four additional SFP+ ports are unused.
Expansion Modules Maximum Capacity for Using the LRM/MACsec Adapter
ExtremeSwitching 5320 Series Hardware Installation Guide 25