Sencore DMG 4000, User Manual

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1 Installation and Safety
The DMG 4000-series products are designed to offer operators reliability and flexibility, and consists of a chassis in which a
number of modules can be installed. To cater to specific system requirements, the chassis can be configured to host functional
modules best suited for a given scenario.
DMG 4000-series products can be delivered in two chassis versions - 2RU chassis and a 1RU chassis. The product model DMG
4200 represents the 2RU chassis, while the product model DMG 4100 represents 1RU chassis.
1.1 The DMG 4200 product
The 2RU chassis has a total of 14 slots all of which can host functional insertion blades. Slot number S1 and S2 in the front are
dedicated to host the control/switch blades. The unit can be delivered with 1 or 2 control/switch blades. The remaining 12 slots
are identical and can be occupied by any of the other functional insertion blades available. A 2RU chassis including control/switch
blades, power supply connectors, and slots for insertion blades in the back, is shown in
Figure 2.1 and 2.2 . Power modules are
inserted from the back (figure 2.2, while the fan module is inserted in the front (placed above the control/switch blades). The
chassis can hold 2 power supply modules for redundancy purpose
S
T
A
T
U
S
USB
D1
10G
D2
10G 1G 1G
D3 D4
CTRL
S
T
A
T
U
S
USB
D1
10G
D2
10G 1G 1G
D3 D4
CTRL
MOD ULAR
HI-DE NSITY
HOT-SWAP
D
M
G
Slot 1 Slot 2
Control/switch blade Redundant control/switch blade
Slot #1A
OK
FAI L
OK
FAI L
Slot #3A
Slot #4A
Slot #1B
Slot #2B
Slot #3B
Slot #4B
Slot #1C
Slot #2C
Slot #3C
Slot #4C
3
9
12
1B 4
7
10
13
5
8
11
14
6
1.1.1 Ventilation
The DMG 4200 product has forced air flow from front to back in the chassis, 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 4200 has 5 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 5 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.
1.1.2 Replacing the power supply module
The power supply modules for the DMG 4200 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