What is an IDE DOM (Disk-On-Module) and how is it used in an Application?
The IDE interface was originally designed for rotating HDD (Hard Disk Drives) in the PC system. The 3.5” or 2.5” HDD was mounted in a slot in the chassis and a flat ribbon cable was used to attach the drive to the host computer’s IDE connector.
Early on, the host’s IDE connector typically resided on a separate disk controller plug-in card. Over time the IDE connector was integrated directly onto the motherboard, saving space while reducing cost and complexity.
This simplified architecture can be taken a step further with the IDE DOM (Disk-On-Module). An IDE DOM is a small flash storage module which plugs directly to the IDE connector of the host motherboard or SBC. The DOM emulates a HDD, so the host operating system sees no difference reading and writing from an IDE DOM or rotating HDD.
Cactus manufactures Industrial Grade IDE DOM in a number of configurations and pin counts to meet different physical and electrical requirements of the host system.
40-pin Industrial Grade IDE DOM (Disk-On-Module)
For these systems, the Cactus 40-pin Industrial IDE Disk On Module (DOM) attaches directly to the host system’s IDE connector. An additional 4-pin power connector on the 40-pin DOM receives power from the power supply.
To meet different physical configurations of the host systems, Cactus 303 Series offers 3 different versions of our 40-pin IDE DOM: Vertical, Horizontal-Left and Horizontal-Right.
44-pin Industrial Grade IDE DOM (Disk-On-Module)
Beginning with the 2.5” IDE HDD, the IDE signal and power lines were combined into one 44-pin connector. This eliminated the need for a separate cable from the power supply.
For these systems, the Cactus 44-pin Industrial IDE DOM attaches directly to the host system’s IDE connector. No additional connector is required for the 44-pin DOM since power is already supplied.
To meet different physical configurations of the host systems, Cactus 303 Series offers 3 different versions of our 44-pin IDE DOM: Vertical, Horizontal-Left and Horizontal-Right.