Installation Manual

All LTC 8921/00 Video Input Modules are identical and can be swapped anywhere within the
bay without making any changes to the module, except to maintain proper termination
settings.
System Video Connections
Camera Input Connections
Camera connections to the LTC 8903 Series Input Bays require the LTC 8808/00 Video
Interconnect (Patch) Panel. Each patch panel provides 32 BNCs for video input or video
looping connections to the system. Patch panels are connected to the rear of the LTC 8903
Series Input Bay using the supplied LTC 8809/00 ribbon cables. Each cable can carry video for
up to 16 cameras. Two (2) cables can be attached to each patch panel to support up to 32
cameras per panel. Each ribbon cable should be attached to the appropriate VIDEO IN
connector on the rear of the LTC 8903 Series bays. A rear panel diagram of the LTC 8903
Series bay is shown in , page 68.
Refer to , page 68 for typical system connections.
The LTC 8809/00 ribbon cables have keyed connectors on each end. Maintain correct
polarity when attaching cables between system components.
Although attaching a ribbon cable with reversed polarity will not cause any permanent
damage, it can cause all video functions within the bay to cease until corrected. Double-
check ribbon cable connections to avoid this condition.
, page 68 illustrates the polarity key orientations on the LTC 8902 and LTC 8903 Series video
matrix bays.
The LTC 8808/00 panels are typically installed on the rear of the mounting rack behind the
applicable matrix bay. They can be mounted elsewhere as long as the 2 m (6 ft) LTC 8809/00
ribbon cables can reach the applicable matrix bay. Note, rack-mounting screws and associated
hardware are NOT included.
The Video Input connectors are labeled with multiple levels. If more than 256 cameras are
used in a system, multiple levels of input bays are used. This type of system configuration is
shown in , page 68 through , page 68.
System Connections over 1024 Cameras
If more than 1024 cameras are used, then a second stage of LTC 8903 Series Video Input Bays
are required. This type of system configurations is shown in , page 68, , page 68 through ,
page 68, , page 68, and , page 68. In this configuration, the VIDEO OUT connectors from
the first stage LTC 8903 Series bays are connected to the VIDEO IN connectors on the second
stage bays using LTC 8809/00 ribbon cables.
The LTC 8809/00 ribbon cables have keyed connectors on each end. Maintain correct
polarity when attaching between the bays. The VIDEO OUT connectors are labeled A
through D. These connectors must be connected to corresponding VIDEO IN connectors
labeled A through D.
System Connections over 1024 Cameras
The VIDEO OUT connectors from LTC 8903 Series input bays are connected to the VIDEO
BUSconnectors on the LTC 8902 Series output bays using LTC 8809/00 ribbon cables. Rear
panel diagrams of the LTC 8902 Series and LTC 8903 Series bays are shown in , page 68.
The LTC 8809/00 ribbon cables have keyed connectors on each end. Maintain correct polarity
when attaching between the bays. See , page 68, showing the polarity key of the ribbon
cable connectors located on the LTC 8902 Series and LTC 8903 Series matrix bays.
6.12
6.12.1
6.12.2
6.12.3
LTC 8900 Series
Hardware Installation Procedure for Redundant System Configuration Utilizing LTC 8901
Series CPU | en
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Bosch Security Systems, Inc. Installation Manual 2016.04 | 10.7 | F.01U.323.096