A31003-H8100-J100-01-7631, 09/2021
OpenScape Branch 550 / 550 HA, Installation Guide
27
Rear Side
The rear panel includes the external interfaces of the integrated mainboard, any
expansion cards interfaces/ports, power supply unit (PSU) sockets , and air exhaust
ventilation holes.
The positioning and number of interfaces varies depending on the system
configuration.
Figure 5: Rear side of OSB 550
1.
Input power socket
2.
Power Supply Unit (PSU) ventilation
holes
3.
Mainboard external interfaces
4.
Rear side of the cover with three
knurled screws
5.
Slot brackets for:
Slots 1-2: gateway cards
Slots 3-4: reserved; no
usage allowed
6.
Cut-outs for optional interfaces
routed to the rear (9-pin D-SUB
type)
7.
Potential equalization stud
8.
Ventilation holes
3
8
6
4
4
2
1
5
4
7
