User Guide
Chapter 1- Hardware Description
1-32
Fabric Switch 
Module (FSM 
4000)
ERR Red ON - Major error on card.
Flashes - During card startup.
RDY Green ON - The card has completed 
startup successfully.
Flashes - During card startup.
ACT Amber ON - At least one participant is 
connected to a conference.
Flashes - During card startup.
MPM+ Card ERR Red ON - Major error on card.
Flashes - During card startup.
RDY Green ON - The card has completed 
startup successfully, after the ERR, 
RDY & ACT LED’s have stopped 
flashing.
Flashes - During card startup.
ACT Amber ON - At least one participant is 
connected to a conference.
Flashes - During card startup.
HS Blue Flashes - Shut down process 
initiated by lightly pulling the CPU 
ejector levers. This LED flashes in 
synchronization with the CNTL 
4000’s card’s HS LED.
ON - Card is in a power down 
mode. 
Card removal Initiated - The card 
can be removed safely once the 
CPU ejector levers are fully open.
Card Insertion Initiated - If during 
the startup phase the blue HS LED 
remains lit, please ensure that the 
card is properly seated in the 
chassis. If this problem persists, 
contact your next level of support.
Table 1-9  RMX 4000 Front Panel LED’s (Continued)
Component LED ID LED Color Description










