Teledyne LeCroy Sierra M124 User Manual - Manual (Page 22)

Teledyne LeCroy Expandability
20 Sierra M124 SAS/SATA Protocol Analyzer User Manual
Cascading and Memory Size
For example, you have two units. The first one has 2 GB memory. The second one has
4 GB memory. The system shows the entire memory as 6 GB. If you set buffer size to
6 GB, the system programs the first board for 2 GB and the second board for 4 GB. You
can consider this ratio when you set buffer size to any value. For example, if you set
buffer size to 2 GB, the system programs the first board for (2*2)/6 GB and the second
board for (2*4)/6 GB. Any unit that has more memory will have larger buffer size.
1.10.1 Cascading with CATC SYNC Expansion
You can use cascading of analyzer units for higher port count, by connecting the units
through the optional CATC SYNC Expansion Card on the analyzer back. Using the CATC
SYNC Expansion Cards will not sequentially trigger the State Machine in Advanced mode.
Connecting a Sierra M124 and a Summit T3-16 via the CATC Sync Expansion Card (ACC-
EXP-002-X)
A Sierra M124 and a PCIe Summit T3‐16 are connected using their CATC Sync ports which
require an optional expansion card (ACC‐EXP‐002‐X) (see
Figure 1.6 on page 21 ).
Note: Refer to the relevant protocol analyzer user manual for instructions on how to install the
expansion board.
To do so perform the following steps:
1. Make sure to stop any recordings in progress.
Note: You may plug/unplug the sync cable while the analyzer unit is powered on.
2. Connect the female end of the sync cable to the SYNC OUT port of the Sierra
M124.
3. Connect the male end of the sync cable to the SYNC IN port of the PCIe Summit
T3‐16.