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other power supply unit can feed the entire DMG 4200 product. Replacing one power supply will not affect the operation of the
unit. It is recommended to connect each power supply module to different circuits.
1.2 The DMG 4100 product
The 1RU chassis for the DMG 4100 holds of a total of 8 slot positions all of which can host functional insertion blades. Slot
number S1 and S2 in the front is dedicated to host the control/switch blades. The unit can be delivered with 1 or 2 control/switch
blades. The remaining 6 slots are identical and can be occupied by any of other the functional insertion blades available. A 1RU
chassis including control/switch blades, power supply connectors, and slots for insertion blades in the back, is shown in
Figure
2.3 and 2.4
. Power modules are inserted from the back (figure 2.4), while the fan module is inserted in the front (next to the
control/switch blades). The chassis can hold 2 power supply modules for redundancy purpose
Slot S1: Mandatory control/switch blade
CTRL
D1
D2
S
T
A
T
U
S
USB
CTRL
D1
D2
S
T
A
T
U
S
USB
D
M
G
Slot S2: Redundant control/switch blade
Slot #2A
Slot #1A
Slot #2B
Slot #1B
Slot #2C
Slot #1C
1A
2A
2A
1B
2B
2B
1C
1C
2C
1.2.1 Ventilation
This DMG 4100 has forced air flow from front to back allowing for multiple units to be stacked above each other with no space in
between. However, adequate space must be provided in front of and behind the unit for effective ventilation.
The DMG 4100 has 6 fans in front. Fan speed is temperature controlled. If one fan fails, remaining fans will increase speed to
compensate. The whole Fan module, containing all 6 fans, can be hot swapped. If, during fan module replacement, the
temperature on the inserted modules exceeds a certain critical temperature, the unit will shut down, to prevent damage of the
inserted modules.
1.2.2 Replacing the power supply module
The power supply modules for the DMG 4100 are hot-swappable. Under normal operating conditions they operate in load share
mode. In case of one power supply unit is failing, or there is a failure causing loss of power to one of the power supply units, the
other power supply unit can feed the entire DMG 4100 product. Replacing one power supply will not affect the operation of the
unit. It is recommended to connect each power supply module to different circuits.
1.3 Safety Considerations
The unit
must
be connected to a grounded power connection. The power input connector) is a
disconnect device
. To remove
the power from the device, the power cables needs to be physically removed from the power input connector.
Mandatory Safety Instructions