SPECIFICATION NUMBER:
81-IN5392
MODEL:
EOC1N
High-Speed Ethernet over Coax
STANDARD INSTALLATION PROCEDURE
EOC1N units are used to convert conventional Ethernet to
a signal that can be carried by 75ohm coaxial video cables
such as RG59.
EOC1N makes it possible to upgrade installed analogue
cameras to high-quality digital IP cameras without the
expense of replacing existing cabling.
In the example shown a pair of EOC1N units is used to allow
an IP (network) camera to communicate with other network
devices over an existing coaxial video cable.
GENERAL INSTRUCTIONS
1. Mounting
!
The EOC1N unit should only be installed indoors or
in an appropriately rated enclosure.
If the unit is to be located on a horizontal surface then the
enclosed rubber feet should be affixed to the underside of
the enclosure. The unit should be securely mounted and
should not be supported by the attached cables.
Mounting bracket part no VHW -WMB can be used for
bolting the unit to a wall or structure. Rack panel part no
VHW-1U allows installation of up to eight EOC1N units in 1U
of a 19 inch rack. The unit’s chassis should be earthed using
either a mounting bracket or a ground strap, secured by the
BNC connector nut, before any other cables are connected
Inline ground isolator part no VHW-XF should be fitted where
there is a significant ground potential difference between
each end of the cable.
2. Power Connection
EOC1N should only be used with a Class II Isolated power
supply. The unit can be powered from either a 12V DC
or 24V AC power supply (PSU), and adjusts to its type
and voltage automatically. If the PSU is shared with other
equipment such as a camera, ensure that the total load
current will not exceed the PSU’s rated output. If in any
doubt, measure the voltage at the PSU’s connector before
and after connecting the EOC1N or other equipment, to
ensure it is within range. If an existing power supply is not
available, up to two EOC1N units can be powered by PSU
part no VWH-12VPSU-xx (xx = UK or USA). Part no VHW-
RMPSU-xx is designed for rackmount installations and can
power up to eight units. The PSU cables should be bared,
tinned and securely connected to the EOC1N power plug
before switching on the PSU. Only one wire should be
connected to each of the power plug’s screw terminals,
with polarity as indicated on the unit’s top panel. The green
LED will blink every 1~2 seconds to indicate the presence of
power.
3. Coaxial Cable Connection
Connect the unit’s BNC socket to the coaxial cable. If
another EOC1N unit is connected at the far end and
powered up, then the green LED will light steadily to indicate
a good connection. In some installations, cable condition
will force the units to reduce their connection speed, and
this is indicated by the green LED flashing (approximately
half-on, half-off). Only two units should be connected, one
at each end of the cable. EOC1N is not compatible with
other equipment such as analog video amplifiers.
4. Ethernet Cable Connection
Connect the unit's RJ45 Ethernet jack to the camera or
other network equipment using a standard Ethernet cable.
Both patch and crossover type Cat5 or Cat6 cables are
supported. The amber LED will light to indicate a network
connection, and will blink off during network activity.
Manufacturer’s Declaration of Conformity
The manufacturer declares that the equipment enclosed with
this certificate conforms with the essential protection
requirements of the EMC Directive 89/336/EEC and has
been designed and manufactured to the following
specifications:
BS EN 55022:1998 Emissions (Radiated)
BS EN 55024:1998 Immunity
BS EN 61000-4-2:1995 Immunity to ESD
BS EN 61000-4-3:20002 Immunity to Radiated RF Fields
(3V/m).
PRODUCT INSTRUCTIONS
REVISION DATE:
March 12, 2007
CO-AXIAL VIDEO CABLE
NVR
NETWORk CABLE
NETWORk CABLE
EOC1N
EOC1N
Power
cable
Network
cable
Coaxial
video
cable
