Moxa TC-SW04-M12-4P-T [30/43] Tc dk10 t tc dk20 t mini pcie interface

Moxa TC-DK10-T [30/43] Tc dk10 t tc dk20 t mini pcie interface

TC-6000 Series Expansion Modules Software Installation and Programming Guide

4-10

TC-DK10-T/TC-DK20-T: mini PCIe Interface

Moxa's TC-DK10-T and TC-DK20-T support 4 PCIe mini card sockets. However, they come with different

interfaces. Check the following table for details:

Model TC-DK10-T TC-DK20-T

Interface

Socket 1

Socket 2

Socket 3

Socket 4

Socket 1

Socket 2

Socket 3

Socket 4

PCIe V1.0

(One Lane)



-- -- --

   

USB 2.0

       

NOTE

You can use

at most two TC-DK10-T/TC-DK20-T modules on a TC-6000 train computer, and the maximum

number of

mini PCIe sockets that can be used is eight.

TC-DK10-T/TC-DK20-T: Configuring Power Controls

The TC-DK10-T/TC-DK20-T module comes with the capability of automating a device’s power state. Note,

however, that this function is provided primarily for powering on and off a PCIe module that uses a USB

interface. It is NOT advisable to use this function with PCIe devices, since the devices could be damaged. It is

also not advisable to use the power control feature with USB DOM devices, because these devices involve the

mounting and unmounting of file systems, and while the Linux system will be able to automatically mount the

USB DOM file systems as they come online, without careful scripting it will not be able to automatically unmount

the file systems once the device goes offline.

WARNING

ing the TC-DK10-T/TC-DK20-T’s onboard power controls for controlling PCIe or USB-DOM devices is

discouraged. Using the onboard power controls for control

ling PCIe and USB-DOM devices may damage the

devices (PCIe) or corrupt data (USB

-DOM). Any use of the TC-DK10-T/TC-DK20-T’s automated,

nboard power controls with PCIe and USB-DOM devices is undertaken at the user’s own risk.

Note that there is a

further limitation: If you install a mini PCIe module that uses non-standard pin

definitions

—such as Sierra Wireless module MC8090, MC9090, MC7304, MC7354—do not use the

power control function on the TC

-DK10-T/TC-DK-20-T module.

If you enable the power control function

for such a module, all access for SMBus will be locked until

the system is rebooted. Read the

specifications of

the mini PCIe modul

es you use carefully.

The command for manipulating the PCIe card’s power feature is mpcie-power. The precise syntax is as follows,

with chip address indicating the card to be configured, and slot_number indicating the number of the card

slot located on the TC-DK10-T/TC-DK20-T board itself. If the on/off flag is not specified, the command will

return the current power status:

# mpcie-power <address> <slot_number> [on/off flag]

The off flag is 0, and the on flag is 1.

Fox example, if you want to power off USB connectivity on slot 1 with some card, issue the following command:

# mpcie-power 0x27 1 0

Note that you can specify a different chip address for each TC-DK10-T/TC-DK20-T module by adjusting the DIP

switch. The location of the DIP switch is shown in the following figure. Refer to the mapping table to determine

which Chip Address corresponds to which DIP Switch Value:

Moxa TC-SW04-M12-4P-T [30/43] Tc dk10 t tc dk20 t mini pcie interface

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