360 Systems 1200HD-EX - Manual (Page 96)

MAXX-1200 Owner’s Manual Page 95
Ignore Preroll Commands
A minimum three frame pre-roll is required to allow the server time to respond to serial
commands. Automation systems and remote controllers often specify other values, and send
commands to set the preroll. See the documentation for your controller or automation to find
out how to set the preroll value.
This option is very seldom used; it allows preroll commands to be ignored and assumes that
the operational preroll is three frames. Do not check this unless you experience problems with
frame accuracy on recordings and playback transitions. Start with a setting of three frames on
the automation system and adjust until you achieve proper timing.
Auto E-E
Toggles Auto E-E mode (input monitor) on/off.
Assigned Serial Ports
VDCP protocol provides for altering the mapping of Serial Port to Video Channel via control
commands. Checking this option will lock the Serial Port to Video Channel ordering.
• When checked, any command received on a particular serial port will be used to control
the like numbered video channel. This means that automation systems that use fixed or
limited VDCP ID numbers can use any output to control any channel of the server.
• With this option checked, there is no requirement for a Port Open command to allow the
automation to control the channel. With some systems, this can negate the requirement to
restart the automation system when bringing the server online.
• Do not check this option when using controllers that communicate with multiple channels
over a single serial port.
• Do not use this option with DNF Controls products.
Communication Port Parameters
The serial data transfer parameters for the server are fixed and cannot be changed. These
characteristics are common to all automation controllers:
Baud Rate 38.4 K Baud
Start Bits 1
Data Bits 8
Parity Odd
Stop Bits 1