INSTALLATION PROCEDURES
70 FOX615Installation
SxA_break: The contact opens if the alarm becomes active = AO
SxA_com: The contact connects or interrupts to the common signal = COM
Risk of operating trouble!
The layout of the connector for the break and make contacts of the Service
Affecting and Service Not Affecting alarm signals are inverted!
Figure 44: Alarm output contact scheme (no alarms, inactive state)
The alarm output use relay contacts which are galvanically isolated from the
other circuits.
3.8 Heat deflection shield R7AI
3.8.1 Orientation of the shield
The heat deflection shield R7AI removes the hot air rising through the sub-
rack(s) below to the front or rear of the rack. If there is no equipment gener-
ating heat below the subrack of the FOX615, the heat deflection is not
required.
• Evacuation to the rear:
The heat deflection shield R7AI is installed in such way that the cold air
flows from the front into the subrack above and evacuates the heated air
from the subracks below to the rear (recommended for 19-inch installa-
tion).
The heat deflection shield R7AI is oriented as follows (top open):
SAA
1
4
6
5
2
3
COM
AC
AO
SNA
COM
AC
AO
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