oscillator for accurate synchronization signals if ac power fails.
Under normal conditions, the output shall be phase-locked to the
60 Hz power frequency. [When master sync from motion detector is
provided, provide gen-lock.] Performance requirements shall be as
follows:
(1)
Pulse waveform:
SMPTE 170M, 525 line, 60 Hz;
(2) Pulse amplitude:
4 Vp-p plus or minus 0.5 volt into a 75-ohm
load pulse;
(3) Pulse outputs:
Sync, blanking, and horizontal and vertical
drive;
(4)
Pulse jitter:
Less than one nanosecond;
(5)
Pulse rise and fall time:
120 plus or minus 20 nanoseconds;
(6) Mounting:
Enclosed cabinet for [rack mounting] [desk top
console].
c.
Video sync distribution amplifier: Amplifier shall ensure proper
phase and amplitude of composite video signals where signals input
to switcher. Performance requirements shall be as follows:
(1) Inputs: High impedance loops through 50,000 ohm minimum
unbalanced one to 5 volts p-p composite return loss (on or off) of
40 dB minimum to 5 MHz;
(2) Outputs: 75 ohms. Level adjustable 3 to 5 Vp-p dc couplings
(base level at zero volts pulse negative). Isolation between
outputs of 40 dB minimum to 5 MHz;
(3)
Rise time:
100 plus or minus 20 nanoseconds;
(4)
Ringing:
One percent maximum;
(5)
Tilt, H & V:
One percent maximum;
(6)
Hum and noise:
Greater than 60 dB below one Vp-p;
(7)
Delay:
Adjustable 0.5 to 5.0 microseconds;
(8)
Delay stability:
100 nanoseconds maximum;
(9) Adjustments and indicators level: adjustable 3 Vp-p; delay:
adjustable 0.5 to 5.0 microseconds; and output: pulse presence
indicator; and
(10) Mounting: Provide amplifier with card cage, cabinet, or
housing to enable internal mounting of the power supply. Mount
entire unit in a [480 mm19 inch equipment rack] [desk top console].
d.
Camera identifiers: Video signal from each camera shall be
identified by a two-digit (minimum) number. Device shall be a
stand-alone identifier or internal to another piece of equipment
(camera, switcher, etc.) and shall meet the following requirements:
(1)
Character format:
5 by 7 matrix, white;
SECTION 13703N
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