Applications
Network equipment in high voltage areas can be at risk due to Ground Potential Rise (GPR). A copper
network cable referenced to a remote ground can become a path for high voltages during a ground fault.
Use of all-dielectric fiber optic cable instead of copper completely eliminates the presence of a remote
ground, which dramatically increases safety of personnel and reliability of equipment. By utilizing fiber
optic cable, the 10/100/1000 Ethernet over fiber converter provides absolute electrical isolation between
both ends of the network.
Copper twisted pair Ethernet is limited to 100m/328ft without extenders. Using fiber optic cable provides
long distance service up to 80km/50mi. without any additional equipment. Optical fiber is immune to EMI/
RF interference, ground loops, and high voltage surges from lightning or ground faults, and is ideal in
electrically noisy environments such as near large power sources, electrical motors, and radio
communications equipment.
RLH-TG-2A-1
N*T1
FE/GE
PBX
BSC/RNC
TDM Mux
BTS/Node-B
N*T1
N*T1
N*T1
RLH-TG-2A-1
FE/GE
Typical
Application in a Wireless Network
RLH-TG-2A-1
N*T1
FE/GE
PBX
BSC/RNC
TDM Mux
BTS/Node-B
N*T1
FE/GE
RLH-TG-2A-1
FE/GE
FE/GE
RLH-TG-2A-1
N*T1
N*T1
RLH-TG-2A-1
Metro/
Ethernet IP
Typical
Application in a Wired Network
PBX/BSC/RNC
RLH-TG-2A-1
RLH-TG-2A-1
FIBER
CABLE
GPR 300V POINT
(GPR ZONE)
N*T1
COPPER
CABLE
FE/GE
HIGH VOLTAGE
TOWER OR
SUBSTATION
BTS/Node-B
Typical HVP
Application
Page 4
RLH Industries, Inc. • Tel. 866-DO-FIBER • Fax 714 532-1885 •
www.fiberopticlink.com