DuraCOR 310
Chapter 2 Operational Description
Page 20 of 51
MNL-0666-01 Rev A3
ECO-5479
Effective: 26 Apr 18
CAN
The DuraCOR 310 has two integrated non-isolated CAN ports. The CAN ports are not terminated
internally. The customer is responsible for port termination. An mPCIe card can be inserted to obtain
isolated ports.
Built-In Test (BIT)
The onboard microcontroller monitors many status lines and voltages on the system for the purposes of
BIT. The microcontroller runs these tests continuously, and logs their results to non-volatile memory.
See Appendix A for more information on accessing BIT information.
Zeroization
For data security, the DuraCOR 310 provides zeroization connection to the ARM processor and the BIT
microcontroller. The user has the ability implement the appropriate software for the system application.
The zeroization pins can be accessed from J2_28 and J2_36, see Chapter 5.
Remote Off
Remote Off may be used to hold the DuraCOR 310 in a powered off state until the user desires the unit to
be powered on. When Remote Off is enabled, no power is delivered to the system. Remote Off must be
disabled in order for the system to draw power.
Warning! The remote off signal will immediately power down the processor when it is asserted. Make
sure your system software is capable of handling hard power faults.
Implementing Remote Off
To implement Remote Off using the Test Cable Set (CBL-C31X-01), connect the red hermaphroditic
Power Pole connectors together. Disable Remote Off by separating the connectors.
To implement Remote Off using a custom cable connect J2_2 (Remote Off) to J2_13
(Remote_Off_Return) through a mechanical switch, relay, or transistor switch powered by the 28V supply.
Refer to Chapter 5 for more connector information.
Write Protect
For configuration control, the DuraCOR 311 provides a write protect connection to the mSATA, BIT
microcontroller, and the PCIe Ethernet MAC/PHY. Asserting this signal causes the mSATA and PCIe
MAC/PHY devices to be unwritable. The write protect connection to the BIT microcontroller is for
monitoring purposes. The write protect lines are accessed from J2_30 and J2_37, see Chapter 5.
