User`s manual

SM-XX
3
Powerful Alarms
Alarms may be created for video sync loss, black (loss of luminance), freeze-frame,
embedded audio loss, external audio loss, over level, out of phase (of chosen pairs),
teletext loss, and closed caption loss.
The colors used for on-screen alarms are as follows;
Audio loss: Yellow- posistion (left or right) indicates channel.
Audio Over: Yellow- posistion (left or right) indicates channel.
Out of Phase: Cyan- middle alarm
Carrier Loss: White- middle alarm
If carrier loss occurs, only that alarm will flash, unless audio loss had already been active
for the same channel.
The decoding of closed caption is available on each scaler, together with an associated
alarm. Analog teletext decoding is available in the scaler.
On screen alarm indication may be a stationary or flashing colored tile border. External
alarm indication may be via the GPI I/O or the LAN/software application.
Optional triggering of SNMP traps for each alarm function or group are also supported.
Tiles have an optional color coded border to provide status indication, such as tally or
alarms.
VITC loss is indicated by the burnt-in VITC display flashing. Burnt-in VITC is available
from SDI sources only.
Captions and UMDs
Captions or Under Monitor Display (UMD) information may be generated manually from a
keyboard connected to a front panel USB-2 port, the SV-Remote USB-2 port, or
automatically from remote sources via the LAN, using browser software operating on a
remote PC, or via the RS232/422 port using TSL or other protocols. Up to two lines of
UMD text can be left, center, or right justified and may be placed anywhere in the tile.
Keeping Time
Clock/date display data can be derived from several sources. There is a set priority that
determines which source is used.
When there is LTC present, this becomes the exclusive reference for the clocks,
regardless of how much it differs from the RTC time.
Should there be no LTC present, the frame will search the network for a NTP server in
the nearby internet region (pool.ntp.org). If a server is found, the clock reference will be
taken from it.
In the absence of any external clock reference, system time is used. A battery on the
CPU board ensures that time data is retained should the unit be powered down.
For each SDI/HD-SDI video input, there is the possibility to display VITC.
Genlocking of the SM-xx is via SD color black or HD tri-level sync, using the genlock
input.