CONV-TTL-BLO hardware project
This project presents the hardware for the CONV-TTL-BLO system. Apart from linking to CERN EDMS, where the official production files for the CONV-TTL-BLO system boards are stored, this project also contains the design files for extra cards used for testing.
The CONV-TTL-BLO system is comprised of a front module board and a rear transition module (RTM) together with its piggyback.
CONV-TTL-BLO system boards
Consult the hardware guide for more information:
CERN EDMS releases:
- Front module: EDA-02446
- Rear transition module: EDA-02452
- Rear transition module piggyback: EDA-02453
Note that the RTM is common to the CONV-TTL-RS485. The RTMs for the blocking systems are the ones ending in BLO.
Other useful information
- Blocking standard definition
- Board architecture reviews:
- Eventual replacement of coupled inductors
- Selecting OS-CON and POSCAP capacitors
- What is a blocking oscillator and why it is no longer used
- What happens when you input a blocking signal into a TTL input
- Explaining the waveform at the blocking output stage MOSFET gate
- RTM board detection
- Crosstalk issue cause and solution document
Testing boards
Two boards were designed for testing with a PTS test system:
- RTM Interface Tester -- used in the front module PTS
- RTM board tester -- used in the rear transition module PTS
More information:
- Front module PTS hardware guide
- Rear transition module PTS hardware guide
- PDF design files for the two cards in the files section
- Design files in the repository
Theodor-Adrian Stana, Jan. 2015