3.2.2
Board-Mounted Bank 2 Settings
DIP-switch Bank 2 is only available on the plug-in module.
Switch
Left (Factory Default)
Right
SW1
A-DS:
Backplane Port A Disabled
A-EN:
Port A Enabled
SW2
B-DS:
Backplane Port B Disabled
B-EN:
Port B Enabled
SW3
Reserved
Reserved
SW4
M/SL:
Master/Slave Auto-Select
SL:
Slave-Mode Only
SW5 - SW8 Reserved
Reserved
3.2.2.1
SW1 - Backplane Port A Enabled “A-DS/A-EN”
When the DIP-switch is in the Left “A-DS” position (factory default), Backplane Port A of the 10/100M is
isolated from the chassis Backplane. When the DIP-switch is in the Right “A-EN” position, Backplane
Port A of the 10/100M is enabled. This port allows Ethernet Backplane connectivity to an adjacent module
via the chassis Backplane Port A. See the backplane illustrations in Section 2.1.3.
3.2.2.2
SW2 - Backplane Port B Enabled “B-DS/B-EN”
When the DIP-switch is in the Left “B-DS” position (factory default), Backplane Port B is isolated from the
chassis Backplane. When the DIP-switch is in the Right “B-EN” position, Backplane Port B is enabled.
This port allows Ethernet Backplane connectivity to an adjacent module via the chassis Backplane Port B.
See the backplane illustrations in Section 2.1.3.
3.2.2.3
SW4 - Master/Slave Auto-Select and Slave-Only “M/SL / SL
When multiple management modules such as the NMM and the 10/100M (or multiple self-managed modules
such as the 10/100M) are installed in the same chassis, only one management module can act as the chassis
master. The master management module has the ability to make changes to the settings of the other modules
in the chassis, while the slave management modules cannot make the changes. If an NMM is installed in
the chassis, the NMM will always be the master, otherwise the lowest slot number with a management
module installed will become chassis master.
When this DIP-switch is in the Left “M/SL” position (factory default), the assignment of mastership is
automatically negotiated by the installed management modules. To designate a specific management module
as the master when no NMM is installed in the chassis, set the DIP-switch on the master module to the Left
“M/SL” position, and set the other installed management modules’ DIP-switches to the Right “SL” position
to enable Slave-Only mode.
Only the chassis master can change configuration settings of other modules.
3.2.2.4
SW3, SW5, SW6, SW7, SW8 - Reserved
These DIP-switches are for factory use only.
NOTE: DIP-switches marked Reserved must be kept in the Left (factory default) position.
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