ANSI CTA-709.2-A-2000 pdf free.Control Network Power Line (PL) Channel Specification.
4.2 Physical and Electrical Specifications
Physical and electrical specifications for the PL medium are not formally given in this document since: 1) the PL medium is assumed to already exist in any environment using EIA-709.2 power line communications and; 2) this specification lacks control over the installation of the power line medium, its physical properties, topology, or other devices connected to the medium. An overview of the physical and electrical characteristics that may he tund in a typical power line environment is given in Annex A and B.
4.3 Connectors
If a connector is used to attach an EIA-709.2 node to the power line network (as opposed to a direct connection), then the connector shall meet the following requirements:
• The connector shall impose a negligible signal loss (less than 0.1dB) from the power line network and the attached node.
• The connector shall not impose any signal or voltage loss (less than 0.1dB) to the power line network (with or without a node connected to the connector).
Power line node connectors are assumed to fit standard home electrical outlets appropriate for the country of use. In
North Anierica these include 120 V AC duplex polarized and unpolarized, and keyed 240 V AC connectors. NEMA
120 V AC (15-20A) connectors are assumed to contact only one side (LI or L2) of the local power line network.
EIA-709.2 nodes may incorporate connectors with or without ground contacts. EIA-709.2 nodes that incorporate a ground contact may use the standard L-N coupling or the optional L-G coupling described in 5.5.4. An E1A-709.2 node without ground contact should function normally using only L-N coupling.
4.4 Installation Requirements and Guidelines
This section discusses the installation of the nodes within the EIA-709.2 environment. The installer should follow the practices described in this section. Failure to comply with these practices may lead to poor reliability, degradalion of system performance (perhaps outside specified operating ranges), and system failure.ANSI CTA-709.2-A pdf download.