Telcordia GR-1089 NEBS Standard for Electromagnetic Compatibility and Safety
Warning
The Ethernet ports of the equipment and its sub-assemblies are suitable only for intra-
building connections (within the same building) or for connections to unexposed wiring or
cabling. (See the conditions listed above.) The Ethernet ports of this equipment or its sub-
assemblies must not be metallically connected to interfaces that connect to the outside plant
(OSP) or its wiring. Ethernet interfaces are designed for use only as intra-building interfaces
(described as Type 2 or Type 4 ports in GR-1089-CORE, Issue 6) and require isolation from the
exposed OSP wiring. The addition of Primary Protectors is not sufficient protection to connect
these interfaces metallically to OSPwiring. This warning does not apply to T1/E1 ports because
T1/E1 ports have built-in isolation and surge protection that allows them to be connected to
OSP wiring.
Intrabuilding Lightning Surge and AC Power Fault
Warning
The E4G series router does not require shielded LAN or WAN cables for compliance with EMC
or safety requirements.
For compliance with NEBS GR-1089 Issue 6, however, shielded cables may be required,
depending on your application. When shielded cables are required, ports shall be grounded at
both ends of the cable.
Equipment Bonding Networks
This equipment is suitable for installations utilizing the Common Bonding Network (CBN).
Equipment Interfacing with AC Power Ports
This equipment shall be connected to AC mains provided with a surge protective device (SPD) at the
service equipment complying with NFPA 70, the National Electrical Code (NEC).
Technical Specifications
E4G Routers Hardware Installation Guide
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