Glossary Of Terms - American Dynamics MegaPower 3200 Installation Manual

Connections
• Set jumpers in plug-in modules before making
system connections.
• System connections require good grade, 75-ohm,
RG-59U video cable (Belden 8241 or equivalent)
with BNC connectors. Complete all connections
before applying power.
• Terminate all video outputs at the last bay in the
run to 75 ohms. An un-terminated run results in a
brighter picture than desired. A double terminated
run results in a darker picture than desired.
• To facilitate servicing, identify all connecting
cables with source/destination numbers.
General
• Perform each installation in a planned and orderly
manner.
CAUTION: Each bay uses plug-in VIMs
(video input modules) and VOMs (video
output modules). Although VIMs and
VOMs can plug into any slot of a bay
and still work (as long as they are
properly configured), it is important to
plug all VIMs in series "starting from the
right-most slot" and all VOMs in series
"starting from the left-most slot". If this is
not done, future expansion and
troubleshooting will be difficult.
• Confirm that each piece of equipment operates as
early as possible during the installation procedure.
It is easier to remove a few temporary
connections than it is to disconnect and re-wire a
large number of permanent connections.
Powering Up the System
Bring the system online only after:
• The CPU has been installed and connected
• Video input has been connected
• At least one monitor has been connected for
viewing the output
• All lines are properly terminated
• At least one keyboard (or external computer) has
been connected for control
• Power has been connected to the equipment, one
bay at a time, ending with the CPU.
AD2010N/P AND AD2020N/P MATRIX SWITCHING BAYS
INSTALLATION GUIDE

Glossary of Terms

Terms used in this guide are as follows:
Matrix Switching Bay = A device that can switch a large
number of video inputs such as cameras to multiple video
outputs that connect to a device such as a monitor, DVR,
or VCR.
VIM = Video input module (each VIM supports up to 16
video inputs). Up to 16 VIMs can plug into a bay but its
number may be limited by the amount of VOMs in the bay.
VOM = Video output module (each VOM supports up to 4
video output devices). Up to 16 VOMs can plug into a bay
but its number may be limited by the amount of VIMs in the
bay.
Camera Group = Each matrix switching bay supports a
camera group of up to 256 video inputs: camera group 1
(1-256 inputs), camera group 2 (257-512 inputs), camera
group 3 (513-768 inputs), and so on.
Monitor Level = A monitor level is up to 16 video outputs
supported by one or more bays: monitor level 1 (1 -16
outputs), level 2 (17-32 outputs), level 3 (33-48 outputs),
and so on. Video outputs can be in one or more bays.
ADDL (AD Data Line) = One data line controls up to four
monitor levels (or 64 video outputs). Four data lines control
up to 16 monitor levels (or 256 video outputs).
Data Buffer = Amplifies video and filters data before
sending it to a video output device.
Camera Group Symbol Definitions: The
on the rear panel of the switching bay identify a camera
Table 1
group ( ).
Table 1. Camera group symbol definitions
Symbol
5
6 12
3 of 64
Camera Group Cameras
CG1 1–256
CG2 257–512
CG3 513–768
CG4 769–1024
CG5 1025–1280
CG6–12 1281–1536 ...
2817–3072 in
increments of 256
8200-0421-08, REV. B
symbols