Installation Guide
Table Of Contents
- Welcome
- Audience
- Related Documentation
- FCC Notice
- RF Statements
- EMC and Safety Statements
- 1. Introduction
- 2. Installing Components and Troubleshooting
- 3. Pole Mount Installation
- 4. Pad Mount Installation
- Introduction
- Required Tools
- Installation Location
- Preparing the Transformer Pad
- Preparing for Installation
- Performing the Installation
- Extend Pad Mounting Bracket
- Attach Pad Mounting Bracket to Lifting Nut
- Attach Conduit Housing to Pad Mounting Bracket
- Insert Conduit Thread into Conduit Housing
- Attach ECN to Pad Mounting Bracket
- Secure ECN to Pad Mounting Bracket
- Connect the ECN to Power and the Network
- Close and Lock the Conduit Housing
- Complete the Installation
- Verifying Successful Installation
- 5. Field Replacement for an ECN 7000 Series Device
- A. ECN 7000 Series Specifications
- B. Safety and High-Voltage Warnings
- C. ESD and Battery Warnings
ECN 7000 Series Hardware Guide 15
within the COS software platform. The C Band is typically used for commercial
and residential applications, such as those that use L
ONWORKS communications
channels.
Each Power Line Communications card contains the following components:
• An Echelon PL 3120
®
Power Line Smart Transceiver, configured for
communications within the A Band or the C Band
• Appropriate Power Line coupling circuit
• Voltage transformer for secondary line-voltage monitoring
• Zero-crossing detector
• High-voltage rectifiers with surge protection
• A USB Hub and associated USB-to-serial converter for communicating
with the ECN main system processor
The following features of the Echelon PL 3120 Power Line Smart Transceiver
provide high performance communications over power lines:
• Unique dual-carrier frequency feature, which automatically selects an
alternate secondary communications frequency if the primary frequency
is blocked by noise.
• Highly efficient, patented, low-overhead forward error correction
algorithm to overcome errors induced by noise.
• Sophisticated algorithms for digital signal processing, noise cancellation,
and distortion correction. These features correct for a wide variety of
signaling impediments, including impulsive noise, continuous-tone noise,
and phase distortion.
A Power Line Smart Transceiver requires an isolated coupling circuit tuned to its
specific transmission frequencies to be able to inject its signal into the low
impedance power cables. The power amplifiers are capable of delivering a 10 V
p-p
(2 A
p-p
) signal into the power lines.
The coupling circuits are specially tuned transformers that provide isolation
between the high-voltage power lines and the low-voltage Power Line Smart
Transceiver.
Whenever line voltage is removed from the ECN, the main system processor
holds the Smart Transceivers in reset or powers them off. See Power
Management on page 7.
Ethernet
The ECN main system board provides two Media Access Control (MAC) physical
layer (PHY) ports that provide support for the IEEE 802.3 standards for
Ethernet-over-twisted-pair networking. The Ethernet 10/100 interfaces support
two different speeds of Ethernet on the same port: 10BASE-T (10 Mbit/s) and
100BASE-TX (100 Mbit/s). The Ethernet MAC PHYs are connected to the SPI
ports of the main system processor.