Chickadee-32 Rear Transmission Module
The Chickadee-32’s Rear Transition Module (RTM) allows for transportation of additional I/O ports to our Chickadee-32 digitizer inside a standard VME 64x crate configuration. It allows the Chickadee-32 to communicate over the GRETA / GRETINA Time and Trigger Control Link. The RTM, which is 6U in VME crate size, communicates with the Chickadee-32 through a Hard Metric P0 connector. This RTM is also ideal for users of the Chickadee-32 who want additional digital logic I/O, or communication over 10G Ethernet.
Coming Soon: an additional 10 MHz clock input from White Rabbit.
Additional specifications below
| Optical fiber transceivers | One for GRETA / GRETINA Time and Trigger Control Link. One for 10G Ethernet. |
| Digitizer Readout Rate | 10G with Ethernet |
| NIM outputs | 4 (LEMO connectors) |
| NIM Inputs | 4 (LEMO connectors) |
| Analog Outputs | N/A |
| Connectors | Standard VME 64x P1/P2 and Hard Metric P0 |
| Physical Dimensions (cm) | Standard VME 64x Rear Transition Module with Hard Metric P0 connector |
| Form Factor | Standard 6U VME 64x (Note: no VME readout. Streaming Ethernet is used) |
| Synchronization | GRETA Timing and Trigger Control Link (TTCL) |
| Computer Interfaces | Gigabit Ethernet |
| Power | VME 5V |
| API | Register Configuration via Python Remote Procedure Calls |