Difference between revisions of "Sync Box AC-in Rack Mount I/O"
From MCEWiki
| Line 6: | Line 6: | ||
: 8 Fibre outputs. Carries a 50 MHz Manchester-encoded signal containing data packets, which include incremented sequence numbers. Programmable as two sets of 4 outputs with differently spaced data packets on each. | : 8 Fibre outputs. Carries a 50 MHz Manchester-encoded signal containing data packets, which include incremented sequence numbers. Programmable as two sets of 4 outputs with differently spaced data packets on each. | ||
;RTS-DV | ;RTS-DV | ||
| − | : | + | : differential RS485 input. Detects falling edges from a Real-Time Sequencer (implemented by SCUBA2) which tells the Sync box when to tell the MCE's to collect data. |
;OPTO-TTL | ;OPTO-TTL | ||
: TTL input, spare input to the command processor. ***Not currently used, and open for suggestions. | : TTL input, spare input to the command processor. ***Not currently used, and open for suggestions. | ||
| Line 12: | Line 12: | ||
: TTL input and output, used to command the Sync Box from a PC. | : TTL input and output, used to command the Sync Box from a PC. | ||
; DV Spare 1 | ; DV Spare 1 | ||
| − | : | + | : differential RS485 output. Carries a 5 MHz clock signal that is synchronous with DV Spare 2. |
; DV Spare 2 | ; DV Spare 2 | ||
| − | : | + | : differential RS485 output. Carries a 5 MHz data signal that is synchronized with DV Spare 1, and contains the same sequence numbers as the MCE(0-7) outputs. NOTE: This output only contains the DV info stream, but not the occurrences of Addr_Zero between DVs. |
; Polarimeter | ; Polarimeter | ||
| − | : TTL | + | : output, available both as TTL and differential RS485, asserted for 1us on an Address-Return-to-Zero(ARZ) if a DV pulse is detected since the last ARZ. |
; FTS | ; FTS | ||
| − | : TTL | + | : output, available both as TTL and differential RS485, asserted for 1us on an Address-Return-to-Zero(ARZ) if a DV pulse is detected since the last ARZ. |
; TTL-IN | ; TTL-IN | ||
: SMB TTL input, spare input to the FPGA. ***Not currently used, and open for suggestions. | : SMB TTL input, spare input to the FPGA. ***Not currently used, and open for suggestions. | ||
Revision as of 14:16, 17 January 2012
- ACDCU(0-7)
- 8 TTL outputs. Carries a high/low signal that enables/disables the MCE AC/DC converter.
- MCE(0-7)
- 8 Fibre outputs. Carries a 50 MHz Manchester-encoded signal containing data packets, which include incremented sequence numbers. Programmable as two sets of 4 outputs with differently spaced data packets on each.
- RTS-DV
- differential RS485 input. Detects falling edges from a Real-Time Sequencer (implemented by SCUBA2) which tells the Sync box when to tell the MCE's to collect data.
- OPTO-TTL
- TTL input, spare input to the command processor. ***Not currently used, and open for suggestions.
- RS232 RxTx
- TTL input and output, used to command the Sync Box from a PC.
- DV Spare 1
- differential RS485 output. Carries a 5 MHz clock signal that is synchronous with DV Spare 2.
- DV Spare 2
- differential RS485 output. Carries a 5 MHz data signal that is synchronized with DV Spare 1, and contains the same sequence numbers as the MCE(0-7) outputs. NOTE: This output only contains the DV info stream, but not the occurrences of Addr_Zero between DVs.
- Polarimeter
- output, available both as TTL and differential RS485, asserted for 1us on an Address-Return-to-Zero(ARZ) if a DV pulse is detected since the last ARZ.
- FTS
- output, available both as TTL and differential RS485, asserted for 1us on an Address-Return-to-Zero(ARZ) if a DV pulse is detected since the last ARZ.
- TTL-IN
- SMB TTL input, spare input to the FPGA. ***Not currently used, and open for suggestions.
- TTL-OUT
- SMB TTL output. Carries a 50 MHz clock signal.
- Power
- AC
