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Publication No.
500-9300007876-000
Rev. C.0
Specifications 115
9.5.2 GPIO 0...11
The general purpose I/O pins can be used as inputs, with the following signal
levels:
When used as outputs (open drain), the following signal levels are supplied:
9.5.3 Isolation
Isolation of the Ethernet outputs, either front or rear, is limited to 500 V peak
against GND and any other supply voltage. By itself, the onboard digital ground
GND and the front panel/chassis frame ground FGND are isolated on the XVR16
with a layout distance of more than 0.3 mm in all PCB layers. However, most
standard devices (keyboard, mouse, and monitor) except Ethernet, connects
FGND and GND directly in the device. Also, standard racks connect both
grounds at the power supply for safety reasons.
Table 9-9 GPIO IN Signal Levels
Level
Voltage
Low
-0.3 V ... +0.8 V
High
+2.0 V ... +3.75 V (Absolute Max Rating)
Table 9-10 GPIO OUT Signal Levels
Level
Voltage
Low
+0.4 V at 6 mA sinking
High
10K Ohm Pull-up