Teleste E3 - Powering

User Manual E3
59300623 Rev.001
5.4.2018 6(20)
Powering
NOTE! Do not remove the shielding cover. There are no user
serviceable parts inside. Unauthorized repairs or modifications
result in permanent damage to the equipment, and will void the
warranty.
Common precautions:
• The E3 amplifier is intended for installation in restricted access locations
(dedicated equipment rooms, equipment closet, or the like)
• Operate the device only on the specified supply voltage.
• The E3 must never be operated without its power supply unit shielding
cover.
• The E3 has no separate power switch thus the power plug must be easily
accessible.
• Disconnect the power cord by the connector only. Never pull on the cable
portion of the power cord.
• Do not place or drop heavy or sharp-edged objects on the power cord.
• The power must be disconnected when installing or removing the E3.
Additional safety requirements for Norway and Sweden:
Equipment connected to the protective earthing of the building installation
through the mains connection or through other equipment with a connection to
protective earthing and to a cable distribution system using coaxial cable, may
in some circumstances create a fire hazard. Connection to a cable distribution
system must be provided through a device providing electrical isolation below a
certain frequency range (galvanic isolator, see EN 60728-11).
The E3 is available either with a remote or local powering option. The E3 has an
integrated power supply that cannot be replaced. The following subsections
describe the differences.
E3 with remote powering (27...65 V AC)
The supply voltage of the remote powered E3 model (27...65 V AC) is supplied
via input/output RF ports only. Feed through capacity is max. 7 A / port. On
delivery, RF ports are provided with fuses. Local connection for remote feed is
not possible thus the power cord entry port must be plugged.
E3 with local powering (205…255 V AC)
The locally powered E3 model is connected to the mains voltage of 205…255 V
AC with its own power cord and has no fuses nor AC feed-through in its RF
ports. The power supply unit is double shielded and does not require separate
grounding. However, ensure that the housing of the E3 is properly connected to
the earth in order to meet safety requirements. Proper grounding will also
improve protection from the effects of interference and thus increase the overall
reliability of the system.