Agilent Technologies E1439 User Manual page 61

The following shows two E1439D modules in an append chain transmitting data to a fiber
receiver when flow control is off.
E1438D / E1439D
Fiber RX
DIGITAL
ADC FIFO
FILTERS
Fiber Interface Setup
First E1439D in chain
Mode
Rate
BOF
CRC
Flow Control
Epoch Generate
Epoch Size
1. The final module in an append chain may require BOF to be Off for compat-
Fiber TX Fiber RX
1 KB
FIFO
ADC
VME BUS
LBUS
Generate
106 or 250 MBs
ON
ON
OFF
ON
Divisible by 4; must match blocksize
ibility with data receivers that cannot process BOFs.
E1438D / E1439D
1 KB
Fiber TX
FIFO
1 KB
FIFO
DIGITAL
FIFO
FILTERS
VME BUS
LBUS
Next E1439D in chain
Mode Append
Rate same as module to left
BOF
ON
CRC ON
Flow Control OFF
Epoch Generate ON
Epoch Size Divisible by 4; must match blocksize
Using the Agilent E1439
Fiber Optic Interface
Fiber Receiver
Fiber
RX
DATA
Processing
1
Fiber
TX
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