Euphonix Modular I/O, Руководство по настройке

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Euphonix Modular I/O Configuration Guide Product Data Sheets
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Redundant clock sources
The SY982 Sync module is the central clocking source for the Modular I/O
system. It provides all necessary clocks for proper system operation and can be
synchronized internally or externally. A Modular I/O frame can be equipped with
a second (redundant) SY982. Both sync modules must be installed in the red
“reserved” slots on the rear-plane of the frame.
Use the MASTER/SLAVE DIP to set the first SY982 as MASTER and the second
unit to SLAVE. Both SY982 modules should be locked to the same external sync
source. In this mode, both modules generate all clocks all the time with the
SLAVE disconnected from the frame sync busses. A red LED “SLAVE“ normally
lights indicating the SLAVE module is in “ready” status.
The SLAVE unit permanently watches the correct LOCK status of the MASTER.
In case of failure of the MASTER (losing external sync or fault on the module
hardware) the SLAVE unit takes over and continues clocking the frame. The red
SLAVE-LED blinks in this condition. If the MASTER unit returns to lock (new
sync signal, or new hardware) it automatically takes over the clock busses and
the SLAVE returns to the “ready” status.
Setting the frame ID
Set DEV0, DEV1, & DEV2 to “ON.”
DEV X
On the master sync module, set DEVX to “ON.” On a redundant sync module,
set to “OFF.”
Can Buss Termination
Can Buss Termination must be done on either the SY982 Sync or FC972
Remote. Lack of termination or double termination may result in communication
errors in the system. Typically, CAN Termination is done on the FC972.
SY982 Sync