Model NV-EC1701 EoC Ethernet over Coax Transceiver
with PoE, PoE+, or High Power PoE
The NV-EC1701 transceivers provide transparent end-to-end 10-baseT
or 100-BaseT connectivity with auto detection and auto-crossover. 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.
Long coax distances are supported, although local power may be
required for extended distances. See pages 7 - 9.
The NV-EC1701 supports TCP/IP, UDP, HTTP, Multi-cast, and other stan-
dard protocols. This allows for the transmission of other network traffic
besides streaming video.
For IP-based CCTV applications, there are some network configurations
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 vulner-
abilities. 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
.
LAN / WAN
Ethernet
Switch
IP Camera
6 Watt PoE
Cat5
≤328ft
(≤100m)
NV-EC1701
NV-EC1701
Model N
V-EC1701
www
.nvt
.co
m ●
(+
1) 6
50.
462.
810
0 ●
(+
44)
(0
) 2
08 9
77
661
4
Eth
ern
et o
ve
r C
oa
x T
ra
nsc
eiv
er
Model NV-EC1701
www.nvt.com ● (+1) 650.462.8100 ● (+44) (0) 208 977 6614
Ethernet over Coax Transceiver
Power Supply
IP Camera
≤1,540ft (470m) with a 48V power supply
≤4,550ft (1,388m) with a 56V power supply
RG-59/U 20 AWG
Cat5
≤328ft
(≤100m)
Cat5
≤328ft
(≤100m)
≤328ft
(≤100m)
Network
Video
Recorder
Firewall
Cat5
NVR CONSIDERATIONS
TRANSCEIVER-TO-TRANSCEIVER
NETWORK ARCHITECTURE
Figure 3 - NVR Installation
Page 6 of 14
