Extreme Networks Extreme 7520 Series Hardware Installation Manual page 116

(continued)
power supplies
Extreme 7520 13
install 60
power supply unit (PSU)
800 W AC 18, 19, 60, 73
800 W DC 18, 19, 63, 64
installing 60, 63
internal 73
power requirements 49
replacing 73
specifications 96
primary node
definition 27
redundancy 22
primary switch 29
priority
for node role election 28
product announcements 9, 10
Q
QSFP+ ports
partitions 17
QSFP28 port LEDs 81
QSFP28 ports
partitions 17
R
rack
attaching switch 53, 54, 57
removing switch 74, 76
rack specifications
grounding 42
securing to floor 43
space requirements 42
radio frequency interference (RFI)
patch panel installation 44
preventing 48
redundancy
in a stack 22
regulatory information 108
removing
fan module 73
from rack 74, 76
replacing
fan module 73
internal power supply 73
restricted 39
restricted access 39
, see radio frequency interference (RFI)
RFI
ring topology 23
RJ-45 management port LEDs 79
RJ45 cable 48
S
safety
precautions when installing 52
(continued)
safety
requirements 102
service access to the rack 42
settings
for management console 68
SFP+/SFP28 port LEDs 80
signal quality 48
single-rack stacking 34
site planning 37
site preparation 53
slack in cable 44
slot number 22
space requirements, rack 42
specifications
800 W AC power supply 97
800 W DC power supply 98
equipment racks 42
Extreme 7520 84
stack 25
see also SummitStack
stack number indicator 22
stackable switch 25
stacking
backup 22
cables 31
combining switch models 31
connecting cables 36
connecting management port 36
connection order 33
daisy chain 24
definition 21
dual primary condition 24
examples 34, 35
Extreme 7520 13
guidelines 29, 30
LEDs 22
multiple-rack 35
native stacking ports 21
primary 22
priority 22
recommendations 29, 30
redundancy 22
ring topology 23
single-rack 34
slot number 22
stack number indicator 22
terminology 25
tool 31
troubleshooting 22
web app 31
stacking link 26
stacking port 25
standards
cabling 43, 51
commercial building 51
design 51
grounding 51
standby node
Index