Specifications
THE SHALLECK COLLABORATIVE SANTA ROSA CITY COUNCIL
AV SYSTEMS UPGRADE
April 6, 2012 27 41 16 14 AV SYSTEMS
100% CD
3. Loudspeaker Rigging: All overhead loudspeaker rigging shall be reviewed and stamped
by a licensed structural engineer working in the State of California. The contractor is
responsible to secure the structural stamp, including all expenses associated therein.
B. Video Systems General Requirements:
1. Signaltonoise ratio (peak to RMS) unweighted DC to 4.2MHz: 55dB minimum
2. Crosstalk: Unweighted DC to 4.2MHz: 45dB minimum
3. Frequency Response: Within plus or minus .5 dB to 4.2 MHz
4. Line and field tilt: 2% maximum
5. Differential Gain: 3% maximum
6. Differential Phase: 2 degree maximum
7. Video System timing: Sync coincidence within 50 nanoseconds
8. Color timing: Within 2 degrees at 3.58 MHz
2.04 MATERIALS:
A. All components supplied under this Section shall be new. Used or factory reconditioned
components will not be acceptable.
B. Floor Standing SwingOut 19” Equipment Rack (Chambers & West College):
1. Provide Middle Atlantic SRseries. See drawings for exact sizes.
2. 500 lb. weight capacity.
3. All structural elements shall be finished in black powder coat.
4. Rack shall be UL Listed.
5. Provide the following options:
a. Solid Front Door, model #FDxx.
b. Lacer strip, heavily perforated, 77" long, model # LACE. Two per rack.
c. Copper Bus Bar, model #BBxx. One per rack.
d. Magnetic Work Light, model #WL60. One per rack.
e. Custom rack mounts for equipment without rack ears, model #RSHseries.
f. Patchcord holder, model #CLAW14, one per rack.
g. For conditions where two racks are adjacent, provide Zero Clearance Latch, model
#DWRSRZL.
6. Provide the following for power management at Chambers:
a. Power raceways as required, model PDWseries.
b. Nonswitching frontmounted convenience outlets. Minimum one duplex outlet per
rack group. Provide Tripp Lite DRS1215 or equal.
7. Provide the following for power management at West College:
a. Power distribution will be handled by rackmount sequencing/protection units.
b. Nonswitching frontmounted convenience outlets. Minimum one duplex outlet per
rack group. Provide Tripp Lite DRS1215 or equal.
C. Floor Standing 4post open rack (Chambers IT equipment):
1. Provide Middle Atlantic R4series. See drawings for exact sizes.
2. 800 lb. weight capacity.
3. All structural elements shall be finished in black powder coat.
4. Rack shall be UL Listed.
5. Provide the following options: