Transition Networks
SMxxTAT4Xx Install Guide
33785 Rev. B
Page
19
of
43
1G/10G SFP+ Ports
The SM48TAT4XA-RP and the SM24TAT4XB both provide four SFP+ uplink ports.
SM24TAT4XB
:
SM48TAT4XA-RP
:
LED Descriptions
The front panel LEDs provide switch status checking and monitoring. There are four types of LEDs as follows:
System LED
: Indicates if the switch is powered up correctly or indicates if there is a system alarm triggered for
troubleshooting.
Power LEDS
(SM48TAT4XA-RP only): Indicates if the switch power supply A/B powered up correctly or not.
Port Status LED
s: Indicates the current status of each port. You can check these LEDs to understand the port
status in different modes, after changing the mode by pressing the Mode/Reset button.
Mode LED
: Indicates the mode of all ports on the switch. You can press the Mode/Reset button sequentially to
switch among the two different modes (Link/Activity/Speed mode and PoE mode).
Table 1: System LED
LED
Color
State
Description
System
Green
On
The switch is powered ON correctly.
Off
The switch is not receiving power.
Red
On
An abnormal state, such as exceeding operating temperature
range, has been detected in the switch.
Table 2: Power LEDS
(SM48TAT4XA-RP only)
LED
Color
State
Description
PWRA
Green
On
The switch is powered ON correctly.
Off
The switch is not receiving power from power supply A.
PWRB
Green
On
The switch is powered ON correctly.
Off
The switch is not receiving power from power supply B.