Title: Hardware Installation Guide.pdf
Communication circuits and network components connected to the telecommunications network shall be protected by secondary protectors for communication circuits. These protectors shall comply with the Standard for Secondary Protectors or Communications Circuits, UL 497A. These protectors shall be used only in the protected side of the telecommunications network.A metal conduit must be used when connecting all UL enclosures. This is required for all UL installations.Do not exceed 1000 receiver accounts for UL.