Agilent Technologies E1439 User Manual page 55

Fiber Modes
The E1439D's fiber interface can operate in five different modes:
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•
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Off
The Off fiber mode disables the fiber transmitter but allows the fiber receiver to read control
signals. Normal data collection and filtering continues, and the data port selection determines
whether data is sent to the local bus (Agilent E1439D only) or read from the FIFO via the VME
bus. See the following illustration.
Fiber RX
Fiber Interface Setup
Fiber Mode
Rate
BOF
CRC
Flow Control
Epoch Generate
Epoch Size
Note
Setting the data port to Fiber while in the Off fiber mode causes the data FIFO to fill up with
filtered ADC data, which then causes data collection to stop.
"Off" on page 45
"Copy" on page 46
"Raw" on page 47
"Generate" on page 48
"Append" on page 50
E1438D / E1439D
DIGITAL
ADC FIFO
FILTERS
Off
setting ignored
setting ignored
setting ignored
setting ignored
setting ignored
setting ignored
Fiber TX
VME BUS
LBUS
Using the Agilent E1439
Fiber Optic Interface
45