Ethernet over Coax Converter/
Range Extender
Part Numbers:
FastECoax7501H (Head End)
FastECoax7501C (Camera Side)
FastECoax7501HC (Head End/Camera Side) Set
User Guide FastECoax 7501
Description
The FastECoax 7501 transports Ethernet over 75Ω coaxial cables. The link consists
of a pair of converters connected together via coax and terminated at each end
with a RJ45 socket. Together the converters create a virtual UTP cable that is
indistinguishable from any other UTP cable link. Power for the internal electronics
can be supplied either using the Power over Ethernet (PoE) standard or via a
separate AC adaptor.
Head End Adaptor
Camera Side Adaptor
UTP port
YW = Link
GN = Activity
AUX Power In
(12v – 48V DC)
UTP port
YW = Link
GN = Activity
AUX Power Out
(V as per master)
RJ45 LED description
Description
RJ45 Green
RJ45 Yellow
UTP port speed
UTP port link
LED On
100 Mbps
Link ok
LED Off
10 Mbps
Link fail
LED Flash
Link ok & activity
Required items (not supplied) to complete system:
75Ω coaxial cable with True 75Ω BNC connectors on each end (maximum
length based on cable type – see specifications)
PoE compliant PoE Power Injector, PoE compliant Ethernet switch or 12V DC
adaptor (24V if powering Camera at far end)
(Note:
center pin positive).
IP Camera or IP source (with or without PoE)
DVR or PC (with PoE if Injector not used)
Two CAT5/6 (UTP) patch cables (< 3 m) with RJ45 Connector
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User Guide FastECoax 7501
Typical use case
Up to 250 meters
(cable dependent)
PoE Compliant
Power Injector
PoE Enabled
Ethernet Switch
Or
NVR
Or
PoE to Camera
ide
ra
S
75Ω Coax
Cable, BNC
Terminated
PoC to Slave
Optional 24V DC
Power Input
(when PoE not used)
PC running IP
Camera SW
He
ad
me
En
Ca
Optional Aux
Power Output
(for non PoE cameras)
PoE to Master
d
Ethernet
Infrastructure
Setup:
Installation Instructions
Connect Head End and Camera Side converters to ends of BNC terminated
Coax cable placing Head End at the end where power is to be supplied
Connect CAT5/6 patch cable to each converter
Connect Camera Side Converter patch cable to IP camera/ DVR/ Switch/ PC
Connect Head End Converter patch cable to PoE injector, PoE enabled Ethernet
switch or local Ethernet infrastructure
In non-PoE systems connect DC Adaptor to Head End Aux Power input
Important
The FastECoax7501H and FastECoax7501C
converters must have 75Ω (+/- 3Ω) impedance.
The Characteristic impedance of the coaxial
cable and connectors must all be 75Ω. Only use
only BNC connectors that are clearly marked as
“True 75Ω”. The illustration (right) shows the
difference between a 50Ω versus a 75Ω
connector.
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User Guide FastECoax 7501
Power options:
There are a number of ways to power the converters:
Head End converter can be powered via PoE, or via DC adapter
Camera Side
must
be powered by the Head End over the coax cable
An IP camera can be powered via PoE (via UTP from the Camera Side),
via the Aux power out of the Camera Side, or using its own power adapter
!
Power
Do not connect the Camera Side to a PoE power injector, or to a power
adapter (the Camera Side power connector is output only).
Example 1: Ethernet switch with embedded PoE
Ethernet
Switch
With
Intgrated
PoE
UTP
Ethernet
Head
End
75Ω Coax
Camera
Side
IP Camera
UTP
The converters are powered via PoE. PoE compatible cameras will automatically be
powered by the Camera Side via UTP. Non-PoE IP camera must use its own power adapter.
Example 2: Using a stand-alone PoE injector
Power
Ethernet
Switch
PoE
Injector
UTP
Ethernet
UTP
Head
End
75Ω
Coax
Camera
Side
IP Camera
UTP
The converters are powered via PoE. PoE compatible cameras will automatically be
powered by the Camera Side via UTP. Non-PoE IP camera must use its own power adapter.
Example 3: Using a Power adapter
Ethernet
Ethernet
Switch
UTP
Head
End
75Ω Coax
Camera
Side
IP Camera
UTP
Power
AC
Adaptor
The converters are powered via the power adapter. The IP camera can optionally be
powered from the Camera Side Auxiliary power connector, which is at the same voltage as
the power adapter (minus any voltage loss in the coax cable – see specifications).
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User Guide FastECoax 7501
Troubleshooting:
When the FastECoax7501 converters are paired they create a virtual UTP cable.
The LEDs on the converters will only light if the complete link is established from
the Ethernet device at one end of the cable to the Ethernet device at the other
end. Once the whole link is established the Yellow LED will light and then flash to
show Ethernet traffic.
Link establishment is also transparent. If a device at one end of the cable is only
capable of operating at 10Mbps, the devices at each end of the link will negotiate
the link to be 10Mbps. In this case the green LED will remain off, showing a
connection at 10Mbps. The same happens for full/half duplex.
The FastECoax7501 supports Auto-MDI/MDI-X meaning that both straight and
twisted patch cables will work. Only use short patch cables, less than 3 meters in
length.
The Characteristic impedance of coaxial cable and BNC connectors must all match.
The FastECoax7501H and FastECoax7501C Converters require 75Ω (+/- 3Ω)
impedance. Most problems are caused by using poor quality BNC connectors that
are not designed to be 75Ω. Always make sure that the BNC connectors are
marked ‘True 75 Ω’.
Symptom
Converters will not connect
Converters will not connect
Specified range not achieved
Specified range not achieved
Slave Converter is not powered
Master Converter is now powered
Probable Cause
Ensure coax is 75Ω
impedance
Ensure BNC connector is 75Ω
impedance
Ensure coax is 75Ω
impedance
Ensure BNC connector is 75Ω
impedance
See Power Options and Troubleshooting sections
Check PoE power supplied by Injector or Switch
Website:
www.eqcologic.com
Support:
http://www.eqcologic.com/inforequest.html
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