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3.7
NETWORKING AND TRUNKING, CONTINUED
The Special parameters section of the SETMAX editor contains a field for setting the
STEAL CRITERIA for trunk congestion management (refer to Chapter: 6). There are
three modes of congestion management available.
•
Priority-level. Uses each operator's individual priority level to determine who
STEALS from whom. This is the default setting.
•
On-alarm-only. Will only STEAL a trunk line to facilitate an alarm activated video
selection. Operators cannot steal from one another.
•
Never-STEAL. Will never steal a trunk line for any reason. First in first serve
allocation of trunk lines, regardless of operator priorities.
The system uses on-screen messages to inform operators of trunk allocation and
congestion situations. If a trunk line is not available to service an alarm activated video
selection, then an error message is written into the error log file.
3.8
CONTROLLING EQUIPMENT
The MAXPRO-Net video system supports a fully integrated environment where all
cameras, VCRs and other video equipment can be controlled from a keyboard. When
control keys (or joystick) are activated on the keyboard, the video system must first
determine:
•
What is the currently selected monitor?
•
What camera (or VCR playback) is currently on display?
•
What site receiver and I/O module equipment has been assigned to that camera (or
VCR, etc.)?
Then the system sends the required data command to control that specific camera (or
VCR, etc.)
The operator does not have to be concerned with the numerous interconnections
between various equipments in the system. What you see is just what you get (and
control).
A fully automated control of cameras, VCRs and other equipment can also be
performed in response to alarms.
3.8.1
PTZ Cameras
When cameras are to be motorized (PTZ) the associated control module located in the
I/O subrack must be allocated. Camera control specifications are made in the video
input table of SETMAX, the configuration editor program. (Refer to section 6.2).
Rev. B
Note: Additional trunk lines could be added to a system
to decrease the occurrence of congestion.
3-18
HMXMC001013
31-Mar-06
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