Connecting the Monitor End
The DigitalEQ
TM
Receiver Hub has RJ45 jack input
connections for the video signals, with four signals
grouped onto each RJ45 jack.
UTP Pinouts
The NV-872 supports channels 1 through 8. The
NV-1672 supports channels 1 through 16. The NV-3272
supports channels 1 through 32.
If screw-terminal connections are desired, use the
supplied NV-RJ45A-to-screw-terminal adaptor acces-
sory. Torque screws to 2in-lb (0,2Nm).
For RJ45 connectivity, bring all UTP-based video sig-
nals into a punch-block or RJ45 patch panel near the
Hub. NVT recommends the use of factory-crimped RJ45
patch cables rather than unreliable field-crimped RJ45s
to connect between the block or panel and the Hub.
Inputs are not polarity sensitive, and no adjustments
are required.
Connect the Hub’s outputs to DVRs, Monitors, Matrix
switches, Encoders, etc. as required, using the supplied
2ft (60cm) BNC patch cords.
Verify the proper voltage selector switch setting for the
mains voltage, and connect the power cord to a grounded
outlet.
Upon power-up, the Hub will momentarily display its
revision, and then display its blue Power LED and status
for each channel:
Channel Status LEDs
(each channel)
OFF
: No signal
GREEN
: Valid video received
AMBER
: Poor video signal too weak or too strong
due to:
1) wire too long
2) shielded wire
3) water in the wire
4) camera’s output level too high
RED
: Signal received but video characteristics not iden-
tifiable. Check for ground loops or 24VAC problems.
Rack / Wall / Table Mounting
Ambient temperature must be below 122°F (50°C). Air-
flow must be at least 4 ft
3
/S of un-restricted airflow. Many
DVRs produce enough heat to exceed this temperature
without external airflow.
For rack mounting, attach the supplied mounting
brackets to the Hub chassis using the supplied screws:
Note that the brackets allow installation with the front
or rear facing out.
For wall-mount installations, they may be attached
to the corners of the chassis.
For table-mount installations, attach the four rubber
feet (supplied) to the bottom of the chassis.
Technical Specifications
Video
NTSC or PAL
Frequency Response
DC to 10 MHz
Equalization
Automatic (no adjustment)
0 to 3,000 ft (1km)
Common Mode /
Differential Mode Rejection
DC to 5 MHz 60 dB typ
Connectors and Impedance
UTP input
RJ45 100 ± 20 ohms
Coax output
BNC 75 ohms
LEDs
Power
Blue
Channel Status
Video
See column one
Environmental
Temperature
32 to 122°F (0 to 50°C)
Humidity
0 to 95% non-condensing
Transient Immunity
per ANSI / IEEE687 C62.41
Power
IEC380 Inlet and Voltage selector switch
NV-872
115/230 VAC
50/60 Hz 160 mA
NV-1672
115/230 VAC
50/60 Hz 160 mA
NV-3272
1115/230 VAC
50/60 Hz 315 mA
Fuse
5 x 20 mm Type T
NV-872
315 mA
NV-1672
315 mA
NV-3272
800 mA
A spare fuse is located inside the fuse holder.
Mechanical
(Excluding brackets and connectors)
Weight
NV-872
Product Weight
4.8 lbs (2,2kg)
Packaged Weight
7.8 lbs (3,53kg)
NV-1672
Product Weight
5.5 lbs (2,5kg)
Packaged Weight
8.8 lbs (3,99kg)
NV-3272
Product Weight
8.0 lbs (3,6kg)
Packaged Weight
12.34 lbs (5,6kg)
Dimensions
17 in wide x 1.7 in high x 8.125 in deep
43 cm wide x 4,5 cm high x 20 cm deep
Accessories
Mounting Rackmount “L” brackets for front, rear, or wall
installations; rubber feet for desk applications
Adaptors
NV-RJ45A
RJ45-to-screw terminals
Power cable
IEC power cord 7 ft (215 cm)
BNC patch cords
2 ft (215 cm)
NV-872
eight
NV-1672
sixteen
NV-3272
thirty-two
Agency
These NVT products are listed and/or conform to the
following certifications and directives:
UL Listed to UL2044 or UL/IEC60065 cUL
Listed to CAN/CSA22.2 No.1 for Canada CE Mark
under EMC and low voltage directives for the European
Union.
Customer Support
If you are experiencing problems, attempt to simplify
your setup. Test each cable segment separately. For ex-
ample, test the camera and monitor together without the
other equipment. Then add in the NVT transceivers back-
to-back. Test each segment of a long cable run independ-
ently. Attempt to isolate the problem.
NVT customer support can be reached 8:00 AM to 5:30
PM Monday through Friday.
US office: (+1) 650.462.8100 • FAX: (650) 326-1940
www.nvt.com/email • nvt.com
UK office: (+44) 0208 977 6614
FAX: (+44) 0208 973 1855
www.nvt.com/email • nvt.com
Returns
Please call before returning units to NVT. Returned
materials must have a “Returned Materials Authorization”
(RMA) number from NVT marked on the outside of the
shipping carton.
Limited Lifetime Warranty
NVT warrants that the product conforms to NVT’s
applicable published specifications and is free of defects
for the life of the product. There shall be no other war-
ranties, express, statutory, or otherwise, including any im-
plied warranty of merchantability, of fitness, or any other
obligation on the part of NVT with respect to any of
the products.
In the event that any of the products is damaged,
altered, or modified without the express written consent
of NVT, any warranty for those products will cease and
NVT will have no further liability as it pertains to those
products.
NVT assumes no responsibility for damages or penal-
ties incurred resulting from the use of this product in a
manner or location other than for which it is intended.
NVT’s liability under any warranties shall be
discharged by replacing or repairing any part or parts
which do not conform to the applicable warranty under
normal and proper use. NVT’s liability with respect to any
product shall not exceed a refund of the price received
by NVT for that product, and in no event shall NVT have
any liability for any incidental, consequential, special, or
indirect damages.
Some states do not allow the exclusion or limitation
of special, incidental, or consequential damages, so the
above limitations or exclusions may not apply to you. This
warranty gives you specific legal rights, and you may also
have other rights which vary from state to state.
Specifications subject to change without notice
Copyright © 2010 Network Video Technologies, Inc.
451-1672-1-B 08/10
RoHS
