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INSTALLATION AND OPERATION MANUAL
CNFE2EOC
2 ETHERNET CHANNELS OVER EITHER 2 TWISTED PAIR OR
2 COAXIAL CABLES USING VDSL2 (EOVDSL) TECHNOLOGY
The ComNet™ CNFE2EOC is a modem that supports two Ethernet channels over
either two twisted pair or two coaxial cables using VDSL technology, at data
rates of up to 90 Mbps. Ethernet data may be transmitted over a telephone-
grade twisted copper pair, legacy serial cabling, or standard 75 ohm coaxial
cable circuits, making this unit ideal for those applications where it is desired
to utilize an existing installed base of copper wiring for Ethernet transmission.
These modems are the perfect solution for upgrading a legacy twisted copper or
coaxial cable plant for use with Ethernet, when compared to the significant costs
of installing new network cabling. The fastest usable data rate is automatically
selected, depending upon the transmission distance and cable quality.
See Figures 1 – 6 for complete installation details.
The CNFE2EOC standard size unit may be directly plugged into the ComNet
Rack (Part C1) or operated as a standalone module. See Page 4 for mounting
instructions.
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INSTALLATION AND OPERATION MANUAL CNFE2EOC
FIGURE 1 – CNFE2EOC STANDARD SIZE UNIT
CAT5e/6
FIGURE 2 – CNFE2EOC STANDARD SIZE UNIT
REAR PANELFRONT PANEL
COAX (75Ω)
COPPER PAIR
COAX (75Ω)
COPPER PAIR
BLACK
BLACK WITH WHITE STRIPE
TECH SUPPORT: 1.888.678.9427
NOTE: Remove Electrical Connector for Rack Mount Units
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FIGURE 3 – POSSIBLE ETHERNET CONFIGURATIONS
Ethernet IEEE 802.3 Network Element determined by user.
Coaxial (75Ω)
No Connection
Ethernet IEEE 802.3
Network Element
Ethernet IEEE 802.3
Network Element
CAT5e/6 with
RJ45 Connections
100m (328ft)
CAT5e/6 with
RJ45 Connections
100m (328ft)
CNFE2EOC
(Master*)
CNFE2EOC
(Master*)
OR
No Connection
Copper Pair
CNFE2EOC
(Remote)
CNFE2EOC
(Remote)
CAT5e/6 with
RJ45 Connections
100m (328ft)
CAT5e/6 with
RJ45 Connections
100m (328ft)
Ethernet IEEE 802.3
Network Element
Ethernet IEEE 802.3
Network Element
* To optimize the bandwidth usage, master unit should be located at video source if asymmetrical mode is selected.
FIGURE 4 – DISTANCE VS. SPEED
Line Side Port 1:
UTP connector: Screw Terminal Block
Cable: Telephone grade 19 to 26 AWG (one twisted pair)
Throughput: (Down Stream / Up Stream)
1000 ft (305 m) 70 Mbps / 65 Mbps
2500 ft (762 m) 26 Mbps / 17 Mbps
5000 ft (1524 m) 16 Mbps / 1 Mbps
7500 ft (2286 m) 5 Mbps / 0.5 Mbps
10,000 ft (3048 m) 1 Mbps / 0.25 Mbps
Line Side Port 2:
Coax connector: BNC
Impedance: 75 ohm coax
Throughput: (Down Stream / Up Stream)
250 ft (76 m) 91 Mbps / 84 Mbps
500 ft (152 m) 86 Mbps / 82 Mbps
1000 ft (305 m) 65 Mbps / 69 Mbps
1500 ft (457 m) 40 Mbps / 52 Mbps
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FIGURE 5 – LED INDICATORS
LINE STATUS (STAT)
GREEN
RED
OFF
Line side activity Remote Configuration Unit powered up
– Master Configuration –
No activity Unit powered down
RED MASTER (M/RD) or
GRN REMOTE (R/GN) POWER
LED STATUS
UNIT STATUS
Low Constant Flashing Fast Constant Flashing On Intermittent Flashing
Idle (Line Is Not Connected) Master/Remote Negotiating Idle (Line Is Connected) Data Flow
FIGURE 6 – SWITCH SETTINGS
SWITCH DOWN (ON) UP (OFF) DEFAULT SETTING
1 Remote Master One ON, one OFF as a pair
2 Forward Error Correction Off Forward Error Correction On ON
3 Asymmetrical Data Symmetrical Data ON
4 Long Reach > 1000ft (305m) Short Reach < 1000ft (305m) ON
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MECHANICAL INSTALLATION INSTRUCTIONS
INSTALLATION CONSIDERATIONS
This EoVDSL link is supplied as a Standalone/Rack module. Units
should be installed in dry locations protected from extremes of
temperature and humidity.
C1-US, C1-EU, C1-AU OR C1-CH CARD CAGE RACKS
CAUTION: Although the units are hot-swappable and may be installed
without turning power off to the rack, ComNet recommends that
the power supply be turned off and that the rack power supply
is disconnected from any power source. Note: Remove electrical
connector before installing in card cage rack.
1. Make sure that the card is oriented right side up, and slide it into
the card guides in the rack until the edge connector at the back
of the card seats in the corresponding slot in the rack’s connector
panel. Seating may require thumb pressure on the top and bottom
of the card’s front panel.
CAUTION: Take care not to press on any of the LEDs.
2. Tighten the two thumb screws on the card until the front panel of
the card is seated against the front of the rack.
WARNING: Unit is to be used with a Listed Class 2 or LPS power supply rated
12–24VDC/AC@1A VDC @ 1A.
FIGURE A
Dimensions are for a standard ComNet™ one slot module
.156 [3.96 mm]
.313 [7.95 mm]
IMPORTANT SAFEGUARDS:
A) Elevated Operating Ambient - If installed in a closed or multi-unit rack
assembly, the operating ambient temperature of the rack environment may
be greater than room ambient. Therefore, consideration should be given to
installing the equipment in an environment compatible with the maximum
ambient temperature (Tma) specified by the manufacturer.
B) Reduced Air Flow - Installation of the equipment in a rack should be such
that the amount of air flow required for safe operation of the equipment is
not compromised.
3 CORPORATE DRIVE | DANBURY, CT 06810 | USA
T: 203.796.5300 | F: 203.796.5303 | TECH SUPPORT: 1.888.678.9427 | INFO@COMNET.NET
8 TURNBERRY PARK ROAD | GILDERSOME | MORLEY | LEEDS, UK LS27 7LE
T: +44 (0)113 307 6400 | F: +44 (0)113 253 7462 | INFO-EUROPE@COMNET.NET
© 2012 Communications Networks Corporation. All Rights Reserved. “ComNet” and the “ComNet Logo” are registered trademarks of Communication Networks, LLC.
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