Front Panel
Table 1. PCI-6551 Front Panel
Callout |
Signal |
Connector Type |
Description |
1 |
CLK IN |
SMB jack |
External Sample Clock, external PLL reference input |
2 |
PFI 0 |
Events, triggers |
3 |
CLK OUT |
Exported Sample Clock, exported Reference Clock |
4 |
Digital Data & Control (DDC) |
68-pin VHDCI |
Digital data channels, exported Sample Clock, STROBE, events, triggers |
Digital Data & Control Pinout
Table 2. Digital Data & Control Signal Descriptions
Signal |
Description |
DDC CLK OUT |
Sample clock out connection |
DIO |
Digital input/output connection |
GND |
Ground connection |
PFI |
Trigger input/event output connection |
RSVD |
Reserved, do not connect |
STROBE |
Sample clock source connection |