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708,
Video-Audio Line Receiver
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The 707 and 708 are
a twisted pair transmitter and receiver for composite video and
unbalanced mono audio signals. The 707 transmitter converts a
composite video and audio signal to a twisted pair signal and the
708 receiver converts the twisted pair signal back into composite
video and audio signals.
Typical
Applications:
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Remote monitoring
for CCTV, medical, schools, broadcast applications
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Ideal for existing
facilities with TP cable already installed.
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Teleconferencing in
offices and hospitals using existing intercom or telephone
wiring
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FEATURES
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Bandwidth - 58MHz (-
3dB) at 400 Meters.
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Twisted Pair
Connectors - RJ-11 (phone).
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Level (Gain) and EQ
(Peaking) Controls (708).
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Looping Input
(708).
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Selectable Input
Signal Termination (708).
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Audio Input Level
(707) - Line or condenser mic (selectable).
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INV Polarity Switch
(708) - Inverts the incoming polarity.
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System Range - Up to
1000 meters (3200’).
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Cable - UTP
(unshielded twisted pair) such as CAT5.
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Compact Size - Part
of the Kramer TOOLS™ family of compact, high quality and cost
effective solutions
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SPECIFICATIONS
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INPUTS: |
Looping balanced 150Ω on a 6/4
standard telephone socket, with termination switch and polarity
inversion switch. |
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OUTPUT: |
1 composite video, 1 Vpp/75Ω
composite video, 1 Vpp/75Ω unbalanced on a BNC connector.1
audio - line level, up to 4.6 Vpp/100Ω on an RCA
connector. |
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BANDWIDTH (PAIR): |
Video: 58MHz; Audio: 30kHz at 30
meters without lightening arrestors |
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NON-LINEARITY
(PAIR): |
Less 0.2% at short
distances. |
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DIFF. GAIN (PAIR): |
0.41%. |
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DIFF. PHASE (PAIR): |
0.3 Deg. |
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K-FACTOR (@ 20m,
PAIR): |
0.1%. |
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S/N RATIO (PAIR): |
72 dB. |
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CONTROLS: |
Video Gain: -1.8 /+ 2.3dB, EQ above
2.5 MHz 0 / 16dB, Audio: 0 / 52dB. 707: Condenser Mic Power. 708:
loop termination, signal invert. |
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POWER SOURCE: |
12 VDC 40mA. |
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DIMENSIONS: |
12cm x 7.5cm x 2.5cm (4.7” x
2.95” x 0.98”, W, D, H.) |
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WEIGHT: |
0.28 kg. (0.62 lbs.)
Approx. |
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ACCESSORIES: |
Power supply, mounting
bracket. |
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OPTIONS: |
Model VA-50P power supply with six
12VDC outlets. RK-T1, RK-T3, 19” rack
adapters. |
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