Instruction manual
21
SNMP Write Lock 
The SNMP Write Lock switch is located on the back of the iMediaChassis/3. The 
SNMP Write Lock switch prevents a new management board from re-configuring the 
application module settings (e.g., the status of features 
such as LinkLoss, FiberAlert, Force mode, etc.) made via 
SNMP on any previous Management Modules. 
NOTE 
Leave this switch in the
 NORMAL
 position during day-to-day operation; the 
LOCKED
position should only be used when changing the SNMP management board. 
The SNMP Management Module can be removed and replaced as necessary. Refer 
to the SNMP Management Module manual for complete instructions about how to 
configure and operate. If an SNMP Management Module is installed, refer to the 
LED panel below for indicators of Link, Temperature, Power Supply modules and 
other functions. 
SNMP Management Module LEDs 
The SNMP Management Module features several LEDs. The LED functions are: 










