2.9.3
Picture Tube
The monitor shall have a [230] [305] [380] [508 mm] [_____] mm [9] [12]
[15] [20] [_____] inch picture tube measured diagonally.
2.9.4
Configuration
The monitor shall be configured in a [cabinet] [rack] mount. [The rack
mount shall fit in a standard EIA 482.6 mm (19 inch) 19 inch rack as
described in EIA ANSI/EIA-310-D.] Monitors shall not interfere with each
other when rack mounted or operated next to each other as described in EIA
ANSI/EIA-375-A.
2.9.5
Controls
Front panel controls shall be provided for power on/off, horizontal hold,
vertical hold, contrast, and brightness. The monitor shall have switchable
DC restoration.
2.9.6
Connectors for Video Monitor
Video signal input and output shall be by BNC connectors.
2.10
VIDEO SWITCHER
The switcher shall conform to EIA 170 specifications, and shall be a
vertical interval switcher. Electronic components, subassemblies, and
circuits of the switcher shall be solid state. The switcher shall be
microprocessor based and software programmable. The switcher shall be a
modular system that shall allow for expansion or modification of inputs,
outputs, alarm interfaces, and secondary control stations by addition of
the appropriate modules. Switcher components shall operate on 120 volts 60
Hz AC power. The switcher central processor unit shall be capable of being
interfaced to a master security computer for integrated operation and
control. The video switcher central processing unit (CPU) shall have the
capability of accepting time from a master clock supplied in ASCII format
through an EIA ANSI/EIA/TIA-232-F input. All components, modules, cables,
power supplies, software, and other items needed for a complete and
operable CCTV switching system shall be provided. Switcher equipment shall
be rack mounted unless otherwise specified. Rack mount hardware shall be
supplied to mount the switcher components in a standard 482.6 mm (19 inch)
19 inch rack as described in EIA ANSI/EIA-310-D.
2.10.1
Switcher Software
The switcher shall be software programmable, and the software shall be
supplied as part of the switcher. The software shall be installed in the
switcher CPU, and shall be configured as required by the site design.
Changes or alterations of features under software control shall be
accomplished through software programming without changes in hardware or
system configuration. The switcher shall retain the current program for at
least 6 hours in the event of power loss, and shall not require
reprogramming in order to restart the system.
2.10.2
Switcher Matrix
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NOTE: The designer will specify the switcher
SECTION 16751A
Page 30
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