LavryBlue 4496
Operation
2
M●SYNC Multi-Channel Sync Module
A.) M•SYNC OVERVIEW
The
M•SYNC
supplies the clock signal for all M•AD-824’s in a 4496 frame. It is controlled by the left-
most panel on the front of the 4496. If there are no M•AD-824’s in your 4496, there will not be an
M•SYNC. In this case, a LAVRY ENGINEERING logo panel takes the place of the M•SYNC panel.
For
A-to D Clocking Modes
, there are three options:
-For
Internal Clock
operation set the far right switch on the M
SYNC to
INT
.
There are different types of “jitter” that can affect digital systems; some become part of the
recording and others don’t. Jitter in the A-to-D converter’s master clock can cause inaccuracies
that DO become part of the recording. Jitter in transmission from the converter to the device it is
feeding (a recording PC for example) DOES NOT become part of the recording. Therefore, Lavry
Engineering recommends that you operate A-to-D converters on “Internal Clock” if possible.
-For
External Clock
operation, set the far right switch on the M
SYNC to one of two external sync modes:
WRD CLK
to lock the M•SYNC to an incoming
external word clock
signal. The lock condition
is indicated when the lock lamp illuminates.
AES
to lock the M•SYNC to an incoming
external AES Sync
signal.
The lock condition is indicated when the lock lamp illuminates.
-The
SYNC IN
BNC connector is for feeding
WORD CLOCK
and
AES SYNC
signals to the M•SYNC.
-The
SYNC OUT
BNC connector is for supplying
WORD CLOCK
from the M•SYNC to external
devices.
-There is a
2X SWITCH
on the M•SYNC rear panel near the BNC connectors. Select
“ON”
to enable the
unit to receive
standard
sync rates (42-50 kHz) while facilitating
conversion at double speed
(84-100
kHz). See External Clock Operation (below) for details.
-PLEASE NOTE: The M
SYNC is
NOT
internally terminated. See “Regarding Termination” under the
M•SYNC Specifications section (Page 6).
