Monitor Server Modules to Improve Efficiency and Reduce Down-Time
The controller in a module-based rack or chassis system often needs to identify which cards are installed, monitor key metrics, such as temperature, and track hot-swapped units. The 1-Wire® memory, I/O, and temperature-sensor products solve this problem by providing a unique identity for every module in the system, allowing all devices to be interrogated over a common 1-Wire connection.
Benefits of 1-Wire products
- Backplane connector complexity is minimized
- Operating power is derived entirely from the 1-Wire line, over a single twisted pair
- Automatic module detection enables hot/live system insertion
- Wide operating ranges: +2.8V to +5.25V, -40°C to +85°C
- Each part is uniquely identified by a factory-lasered 64-Bit ROM ID
- 1-Wire line drivers can offload 1-Wire communication from the host software
1-Wire Devices for Rack/Blade Servers
Device | Function | User memory | Communication | Benefit |
---|---|---|---|---|
DS28E04-100 | Addressable EEPROM with PIO, Sequence Detect | 4Kbit | 1-Wire | Allows host system to detect physical location of each module. |
DS2431 | EEPROM | 1Kbit | 1-Wire | Provides module identification and programmable memory. |
DS28EA00 | Digital Thermometer, PIO, Sequence Detect | - | 1-Wire | Ensures equipment is in the proper temperature range. Detects sequence without need for DS28E04-100. PIO can be used to power an LED to alert technician when a problem is detected. |
DS2413 | Addressable Switch | - | 1-Wire | Provides programmable I/O pins. |
DS2484 | Single Channel 1-Wire Master | - | I2C slave, 1-Wire master | Offloads 1-Wire communication from host software. |
DS2482-800 | 8 Channel 1-Wire Master | - | I2C slave, 1-Wire master | Offloads 1-Wire communication from host software. Provides eight physical 1-Wire lines. |
DS28E25 | Secure Authenticator | 4Kbit | 1-Wire | Provides counterfeit protection and ensures modules are genuine OEM equipment. |
Technical Documentation

Security
Improve data center security by alerting when an asset is moved or removed; this is a great application for 1-Wire serial EEPROM devices.
To take security a step further, a DeepCover Secure Authenticator can be embedded in each module to provide secure authentication, to ensure that the module is genuine to the OEM.