User guide

Metrobility “redundant twister” 9
2731-XX and 2711-11: The DIP switches are marked on the back panel
and can be set for the following operational functions.
Switch Name Position Operation
TX BOTH UP Transmits data on both the PRIMARY and
SECONDARY ports simultaneously.
DOWN Transmits data on the active port only.
(default)
AUTO UP Active port automatically reverts back to the
REVERT PRIMARY port when the primary link is
reestablished.
DOWN Active port will not revert back to the PRIMARY
(default) port when a primary link is reestablished. The
SECONDARY port remains active. Use the
RESET push button located on the front of the
unit to force the active port back to the PRIMARY
port and clear the SW LED.
LINK UP Link signals are sent out on both the PRIMARY
BOTH and SECONDARY ports (i.e. Link is sent out both
ports).
DOWN Link signals are sent out on the active port only.
(default) With the LINK switch in this position, data is not
transmitted out the inactive port regardless of the
TX switch setting.
IMPORTANT NOTE: With the LINK switch in
this position, the device on the other end of the
PRIMARY and SECONDARY ports must not be
in auto-sense mode.