IMC Networks 20 - Manual (Page 15)

11
• Both power supply modules malfunction
• Both power supply modules are powered down
• When the AC line fails
SNMP Write Lock
There is an SNMP Write Lock switch located above the SNMP module slot on the
front of the iMediaChassis/6. 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:
LNK/ACT
FDX/COL
TEMP
PS
FAN A / FAN B
Glows green when a link is established on port.
Blinks green when data activity occurs.
Glows yellow when port is in Full-Duplex mode.
Blinks yellow when port is operating in Half-
Duplex mode and collisions occur.
Glows yellow when temperature of unit
surpasses a user-defined level.
Glows yellow when one power supply module
malfunctions.
Glows yellow when a fan malfunctions.