Cascading With Stx Sync Expansion Cards; Cascading - Teledyne Sierra M6-2 User Manual

Teledyne LeCroy
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.
1.9.1

Cascading with STX SYNC Expansion Cards

You can use cascading of analyzer units for higher port count, by daisy chaining the units
through the provided Expansion and Clock In/Out interfaces on the analyzer back.
Connect "Out" connectors to "In" connectors of the next unit in the chain, for both Signal
and Clock interfaces. You must provide external hubs
these units using USB or Ethernet. You can cascade up to eight units. Use the STX SYNC
Expansion Cards to sequentially trigger the State Machine in Advanced mode.
If you mix Sierra M6‐4, Sierra M6‐2, and STX A6‐4 analyzers/emulators, put Sierra boards
first, then STX.
Note:
Because chain connections for cascading boards cause delay of signals, traffic on different
boards is not completely time synchronized, with about one DWORD difference between
consecutive boxes.

Cascading

To set up the units in a cascade:
1. Connect all units to the host machine using either USB or Ethernet cables. You can
2. Locate the Expansion and Clock ports on the back of each unit.
Figure 1.6: Expansion and Clock Ports
3. Connect the OUT Clock connector of Unit 1 to the IN Clock connector of Unit 2 using
4. Connect the OUT 10‐pin connector of Unit 1 to the IN 10‐pin connector of Unit 2
Note:
Unit 1 must be the unit that has the first out connection.
24
use hubs.
the supplied stacking cables. Similarly connect any additional units.
using the supplied stacking cables. Similarly connect any additional units.
for connecting the host machine to
Sierra M6‐2 SAS/SATA Protocol Analyzer User Manual
Expandability