GE TELUM ASLP11, Справочное руководство

Страница: 57 / 64

•
The core temperature of the CPU can be read out via the onboard
temperature sensor. The value must be kept below 100°C for all
operating conditions. This value is already included in the airspeed
diagram above. If this temperature limit is violated, the CPU will start to
reduce its internal frequency temporarily. This can be checked by a short
blink of the red LED which occurs every 0.8 seconds.
Electrical Characteristics
Supply voltage range
The following ranges are defined by the AMC.0 specification. The voltages
have to be measured at the ASLP11 board (for example at the AMC
connector pins):
Table 18: Supply voltage ranges
Supply Voltage and tolerance
+3.3 V 3.3 V +/-10 %
+12 V 10.8 V – 13.2 V
Isolation
By itself the onboard digital ground GND and the front panel/chassis frame
ground FGND are isolated on the ASLP11 with a layout distance of more
than 0.8 mm in all PCB layers. However, most standard USB devices will
connect FGND with GND directly in the device. Also standard racks (our
starter cage too) connect both grounds at the power supply for safety reasons.
GE Intelligent Platforms – ASLP11 Hardware Reference Manual, Third Edition Page 57