CommScope ATC300-2000 - Manual (Page 27)

ATC300-1000/2000 Teletilt ® RET System Section 1–System Description
Bulletin 639544 • Revision L August 2014 1-11
1.4 Junction Boxes
Junction boxes are used to join up to 32 AISG RET
(remote electrical control) devices (antennas with
actuators and TMAs) to the controller. These units
also divide data and power on the main control cable
feeding into the RET devices.
Features/benefits include:
• The ATJB200-A01-004 (four-way, shown in Figure
1-12) and ATJB200-A01-007 (seven-way, shown
in 1-13) junction boxes are designed for linking
multiple RET devices into the RET system.
• Both ATJB200-A01-004 and ATJB200-A01-007
junction boxes are pipe or wall/flat surface mount-
able with mounting brackets included.
• Junction boxes provide additional lightning protec-
tion to the RET system (ATGK-COMP grounding
kit, included). If a junction box will not be used at
the top of the RET system, it is recommended that
an additional lightning protection unit be installed
at the tower top.
1.5 Lightning Protection Unit
Lightning protection unit, ATLP200-001, is designed
to provide added protection to all ATC300-1000/2000
system equipment (controller, actuators, junction
boxes). See Figure 1-14.
Features/benefits include:
• Designed to withstand a short circuit current level
of 10/350 μs, 0.6kA (line to ground) (per IEC
61312-1 standard)
• Equipped with a grounding nut; must be grounded
(ATGK-COMP grounding kit)
• 8–pin male and female interfaces to feed data and
power from the controller to the first junction box
or actuator.
• Pipe or wall/flat surface mountable with mounting
brackets included.
• ATGK-COMP grounding kit, included.
Figure 1-12. ATJB200-A01-004
Four-Way Junction Box.
Figure 1-13. ATJB200-A01-007
Seven-Way Junction Box.
Figure 1-14. ATLP200-001
Lightning Protection Unit.