Step 11 Connect SCSI I/O, Continued

SCSI Termination Possibilities

S C S I terminator

S C S I

t e r m i n a t o r

 

 

 

 

 

 

Termination on

 

 

 

 

 

 

 

S C S I d e v i c e s

 

 

 

Termination on controller

 

 

 

 

(termination disabled on both)

 

 

 

 

 

 

motherboard

 

 

 

 

 

 

 

 

 

 

 

enabled

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

enabled.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Setup using one connector for one channel

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S C S I

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

terminator

 

 

 

 

 

 

 

 

 

 

 

 

 

TerTerminationinatio

on controlleron

 

 

 

 

S C S I d e v i c e s

 

 

 

S C S I d e v i c e s

motherboardi s a l e d

(termination disabled on both)

(termination disabled on both)

disabled.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Setup using two connectors for one channel

If the MegaRUM is at one end of a cable, it sets termination automatically at that end. Otherwise, MegaRUM disables its own termination and you must set termination at the cable ends. If another connector on MegaRUM is also used for the same channel, the termination on MegaRUM is disabled automatically and termination should be set on the device at the farthest end of the cable.

For a disk array, set SCSI bus termination so that removing or adding a SCSI device does not disturb termination. An easy way to do this is to connect MegaRUM at one end of the SCSI cable for each channel and to connect an external terminator module at the other end of each cable. The connectors between the two ends can connect SCSI devices. Disable termination on the SCSI devices. See the manual for each SCSI device to disable termination.

Selecting a SCSI Terminator Use ALT-2 type external SCSI terminators on SCSI channels operating at 10 MBs or higher synchronous data transfer.

Cont’d

40MegaRUM PCI Motherboard User’s Guide

Page 44
Image 44
American Megatrends MAN-758 manual Scsi Termination Possibilities, Setup using one connector for one channel

MAN-758 specifications

American Megatrends has established itself as a prominent player in the realm of BIOS and firmware solutions, and one of its notable products is the MAN-758 system on a module (SoM). The MAN-758 is particularly attractive for embedded applications, industrial automation, and IoT devices. This product is designed to meet the demands of modern computing while maintaining an efficient footprint.

At the heart of the MAN-758 is an advanced ARM Cortex processor, which provides significant performance advantages over lesser platforms while maintaining low power consumption. Users can expect highly responsive performance, making it suitable for increasingly complex applications. The module is also equipped with multiple memory options, including DDR4 RAM, which further enhances its capabilities for multitasking and data handling.

The MAN-758 is designed for versatility, boasting various I/O interfaces that cater to different application needs. It includes multiple USB ports, serial ports, and support for gigabit Ethernet, allowing for seamless connectivity. This flexibility makes it ideal for industries that require robust communication capabilities.

In terms of technologies, the MAN-758 showcases advanced thermal management, ensuring optimal performance even in demanding environments. The module supports a wide operating temperature range, making it particularly useful for industrial applications where extreme conditions may be the norm.

Security is also a top priority for the MAN-758, which integrates multiple security features, including secure boot and hardware-level encryption. These elements are critical for safeguarding sensitive data, especially in connected environments.

The module supports a range of operating systems, providing the flexibility necessary for developers targeting different platforms. This includes not only traditional OS options but also support for various real-time operating systems, which is essential for time-sensitive applications.

Its compact design makes the MAN-758 easy to integrate into various systems, whether for new developments or upgrades to existing systems. Considering these features, it's clear that the American Megatrends MAN-758 is a powerful and versatile module designed to tackle the challenges of modern embedded applications. With its blend of performance, connectivity, and security, it stands out as an excellent choice for developers and engineers looking to build robust, scalable solutions in the ever-evolving tech landscape.