DDL Products
SIU v.2.3
Source Interface Unit
 |
SIU is a Detector Data Link (DDL) Source Interface Unit designed for use in the data acquisition (DAQ) system of the ALICE experiment. However, it is a standard interface and can be used in any DAQ-s. It transmits data from front-end electronics to a DDL readout card through a high-speed optical link. |
Performances
- 2.125 Gb/s optical data transmission
- Complies with CERN proprietary Detector Data Link (DDL)
- 206 MB/s maximum sustained bandwidth
- Half duplex 32-bit data path and flow control
- Radiation tolerant (tested on the ALICE radiation levels)
DDL Features
- Instant-on, (automatic link synchronization and management)
- Supports remote control and firmware upgrades of the Front-end system
- Bit error rate << 10-12, very high error detection rate, CRC check on data blocks
- Standby support
Interfaces
- Half Common Mezzanine Card (CMC) form factor
- User replaceable Small Form Factor Pluggable (SFP) optical transceivers
- Duplex LC optical connector
- LVTTL interface, single 3.3V supply voltage
- Compatible with: RORCv3, RORCv2