
CM Eth Combo
User Manual
24
4.4.3
Prevent sleep
Figure 4-9: Prevent standby
The CM_Eth_Combo can work in two different operation modes:
Prevent sleep
: The CM_Eth_Combo works at full capacity and never falls into
Sleep-mode.
Prevent Sleep
: The CM_Eth_Combo works at full capacity as long as there is
communication on supervised ports. If there is no communication for defined
time in field
Sleep Timeout
, the CM_Eth_Combo falls asleep. The consumption
is reduced to zero and only the wake-up lines in the black Power Connector at
the frontside can wake up the CM_Eth_Combo.
(More information can be found in
C
and
C
Keep Awake
Reason Bus
of each port])
4.4.3.1
Staying alive conditions
If there is any communication on one of the supervised 100BASE-T1 ports (Host port
included) or 1000BASE-T1 ports or a high level on one of the WakeUP lines the
CM_Eth_Combo is staying alive.
As described in
C
, there are 2 Wake up lines:
4.4.3.2
Wake up conditions
If the device is in sleep mode, it can only be waked up by high level on the WakeUP 1
or WakeUP 2.