Technical data

3-8 Power Subsystem
Figure 3-6 Remote VCAM Fault Indicator and Voltage Regulator Locations
3.2.2.5 Mezzanine (F Mezz and S Mezz) Boards
Both F mezzanine cards (F Mezz and Short F Mezz) have a 5 V-to-1.5 V regulator, identical
to those on the IO4 and VCAM. Each F mezz board also has a single, red voltage fault LED,
as shown in Figure 3-7. The LED lights when the voltage level is out of range.
The S mezzanine card (not shown) has no regulators, but has three removable fuses.
LED Reference
Designation
Color / Meaning
When Lit
Description
M0P6 Red/Fault Bad +1.5 V regulator on the RMT_VCAM
L9P6 Red/Fault Bad -5.2 V regulator on the RMT_VCAM
L8P6 Red/Fault Bad -12 V regulator on the RMT_VCAM
L7P6 Green/Good 5 V input (V5_AUX) from System Controller
to RMT_VCAM (should always be on)
L6P6 Amber/Fault Bad +12 V input from the backplane
L5P6 Amber/Fault Bad +5 V input (VCC) from the backplane
L4P6 Amber/Fault Bad +1.5 V regulator on the RMT_VCAM
L3P6 Amber/Fault Bad -5.2 V regulator on the RMT_VCAM
L2P6 Amber/Fault Bad -12 V regulator on the RMT_VCAM
Table 3-3 Remote VCAM Fault LEDs
Fault LEDs
M0P6
L9P6
L8P6
L7P6
L6P6
L5P6
L4P6
L3P6
L2P6
+12V
Test Points
VCC(+5V)
+1.5V
GND
-5.2V
-12V