White Rabbit High availability Seamless Ring (HSR)
HSR is a research project to implement the High availability Seamless
Ring (HSR) protocol on White Rabbit switches and dual-port end nodes.
The implementation is not part of the roadmap of the White Rabbit
project.
TEMPLATE TEXT BELOW*
The fmc-dio-5chttla 5-channel digital I/O module is a simple board for
digital I/O on LEMO connectors.
It has been designed for testing White Rabbit functionality as part of
the SPEC Demonstration Package for White Rabbit
(manual),
and it can be used for other general purpose applications
too.
Functional specifications
- 5 input/output ports with independently programmable direction (Lemo 00 connectors).
- Output levels: LVTTL, capable of driving +2.5 V over a 50-Ohm load. At power-up the outputs are in Hi-Z state.
- Input levels: any logic standard from Vih = 1 V to Vih = 5 V (programmable threshold).
- Output Rise/fall times: max. 2 ns.
- I/O bandwidth: 200 MHz.
- Programmable 50-Ohm input termination in each channel.
- LVDS I/O on the carrier side.
- One of the inputs is capable of driving a global clock net in the carrier's FPGA.
- Inputs and outputs protected against +15V pulses with a pulse width of up to 10us @ 50Hz.
- 4-layer PCB
Block diagram
Project information
- Official production documentation: EDMS EDA-02408
- Notes on the hardware design
- Software
- Frequently Asked Questions
- Users
Contacts
Commercial producers
- FMC DIO - FMC 5-channel Digital I/O module Seven Solutions, Spain
- FMC DIO 5ch TTL a Creotech, Poland
- fmc dio 5chttla INCAA Computers, Netherlands.
Project
- Erik van der Bij - CERN - General question about project
- Tom Wlostowski - CERN - Designer
Project Status
Date | Event |
27-05-2011 | Start of brainstorming. |
19-07-2011 | Five cards built. Has some bugs. |
8 April 2015