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2017/11
Figure 2 - IP Camera & NVR Installation
IP CAMERA & NVR CONSIDERATIONS
TRANSCEIVER-TO-TRANSCEIVER
NETWORK ARCHITECTURE
The NV-EC1701U transceivers provide transparent
end-to-end 10-baseT or 100-BaseT connectivity with
auto detection and autocrossover. This means that IP
cameras or other devices may be installed at one end,
and their data is transparently delivered to the other end.
Please read configuration instructions on page 3 before
installing.
Wire distances up to 1,500ft (450m) are supported,
although local power may be required for extended
distances. See page 9.
The NV-EC1701U supports TCP/IP, UDP, HTTP, Multi-
cast, and other standard protocols. This allows for the
transmission of other network traffic besides streaming
video.
For IP-based CCTV applications, there are some
network configuartions that are robust, and others that
are not recommended.
In general, it is best to deploy
a separate LAN exclusively for video traffic.
Although it is possible to place IP cameras onto the end-
user’s “Enterprise LAN”, there are several disadvantages
in doing so. These include:
Traffic Management Considerations
When sharing the resources of a LAN, the nature of
the traffic must be well understood for it to operate
efficiently. For most end-users, the business use of
their LAN is constantly changing, critical for their day-
to-day operations, and not managed by the same
group that manages their security. IP video can often
consume large amounts of bandwidth, which may or
may not be compatible with existing IT traffic.
Security Considerations
Most surveillance systems are installed specifically
to protect against breaches in security. A shared LAN
provides potential opportunities for unauthorized
access to security assets. Sniffing IP addresses can
result in the unintended disclosure of IP cameras or
network vulnerabilities. Spoofing IP addresses could
result in the disruption of recording.
If you must pass IP camera video through
“public” LANs, ensure that video is recorded
prior to leaving the secure LAN. Then encrypt it
by using a Virtual Private Network (VPN) so that
neither the video, nor its addressing is readable
on the LAN. Many low-cost routers support VPNs.
Complete Installation Guide
Model NV-EC1701U
EoC Ethernet over Coax Transceiver
with PoE, PoE+, or High Power PoE
6 Watt IP
PoE Camera
Ethernet over Coax EoC Transceiver
Cat5
Ethernet over Coax EoC Transceiver
55VDC Power Supply
Cat5
Ethernet
Switch
NV-EC1701U
NV-EC1701U
Analog Camera
Cat5
Network
Video
Recorder
LAN/WAN
Firewall
Cat5
9