Install Guide

Table 2. Management Ethernet port LEDs
LED Description
Link LED
● Off—No Link
● Solid green—Link operating at a maximum speed,
autonegotiated/forced or 1G
● Solid yellow—Link operating at a lower speed,
autonegotiated/forced or 10/100M
Activity LED
● Off—No Link
● Flashing green—Port activity
Table 3. SFP+ port LEDs
LED Description
Link LED
● Off—No Link
● Solid green—Link operating at maximum speed, 10G
● Solid yellow — Link operating at a lower speed, 1G
● Flashing yellow, 1 second on/off—Port beacon
Activity LED
● Off—No Link
● Flashing green—Port activity
NOTE: There are four LEDs for each QSFP+ and QSFP28 port. For each port, 100GbE or 40GbE uses only one LED,
2x50GbE uses two LEDs, and 4x25GbE or 4x10GbE uses all four LEDs.
Table 4. QSFP+ and QSFP28 port LEDs
LED Description
Link/Activity LED
● Off—No Link
● Flashing green—Port activity operating at maximum
speed, 100G for QSFP28 ports or 40G for QSFP+ ports
● Flashing yellow—Port activity operating at a lower speed
● Flashing yellow, 1 second on/off—Port beacon
Link/Activity LED—4x25G mode or 4x10G mode
● Off—No Link
● Flashing green—Port activity at 4x25G on a QSFP28 port
or 4x10G on a QSFP+ port
● Flashing yellow—Port activity at 4x10G on a QSFP28 port
● Flashing yellow, 1 second on/off—Port beacon
Link/Activity LED—2x50G
● Of —No Link
● Flashing yellow—Port activity at 2x50G on a QSFP28 port
● Flashing yellow, 1 second on/off—Port beacon
Prerequisites
The following is a list of required and optional components for the S4200-ON Series (S4248FB-ON and S4248FBL-ON) switch:
NOTE:
Detailed installation instructions for the S42400-ON Series are provided in Site Preparations and Install the S4200-
ON Series.
● S4200-ON Series (S4248FB-ON or S4248FBL-ON) switch or multiple switches, if stacking
● AC country- and regional-specific cables to connect the AC power source to each of the switches’ AC power supplies
● Mounting brackets for rack installation, included
● Screws for rack installation
● #1 and #2 Phillips screw drivers, not included
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S4200-ON series switch