CommScope ATSBT-4G Series Instruction Sheet

653102 Revision G,
AISG Smart Bias Tees
ATSBT-4G Series

GENERAL INFORMATION

• Smart Bias Tees are designed to eliminate the long AISG data
cable run from the base to the top of a cell site tower by "piggy-
backing" power and control signals onto an existing RF coax.
• Each Smart Bias Tee includes grounding hardware that can be
used with the ATGK-COMP grounding kit for added lightning
protection (Figure 1).
Note: An AISG TMA includes its own Smart Bias
Tee functionality at the top of the site. Therefore, a
top Smart Bias Tee unit is not needed if an AISG
TMA is used on top.
• The model numbering sequence for this series is encoded as
follows:
ATSBT- TOP- FM- 4G
Gender of connector on antenna
side of bias tee: Female or Male
Gender of connector on BTS side
of bias tee: Female or Male
Position is TOP or BOTTOM
Smart Bias Tee
Proper installation procedures must be followed when installing and operating RET equipment. Failure to assure installations are done
properly by trained installation personnel and to follow procedures discussed in this bulletin may cause warranty for such products to be
void.
Commscope requires pretesting actuators on the ground prior to installation, using the Commscope portable controller and
the latest version of the controller software (available online at www.commscope.com/resources/software). This will verify proper
actuator functionality and also ensure that the latest available actuator firmware release is installed on the actuator. Failure to conduct
pre-test and pre-installation procedures defined by Commscope will void warranty.
Unauthorized removal of a protective shroud to replace actuators voids the Commscope warranty.
The installation, maintenance, or removal of an antenna requires qualified, experienced personnel. Commscope installation instructions
are written for such installation personnel. Antenna systems should be inspected once a year by qualified personnel to verify proper
installation, maintenance, and condition of equipment.
Commscope disclaims any liability or responsibility for the results of improper or unsafe installation practices.
It is recommended that transmit power be turned off when the field installation is performed. Follow all applicable safety precautions as
shown on this page.
Do not install near power lines.
Power lines, telephone lines, and
guy wires look the same. Assume
any wire or line can electrocute you.
www.commscope.com
© 2021 CommScope, Inc. All rights reserved.
Visit our website at www.commscope.com or contact your local CommScope representative or BusinessPartner for more information.
All trademarks identified by ® or ™ are registered trademarks or trademarks, respectively, of CommScope, Inc. 653102 G (5/26)
May 2021
WARRANTY NOTICE
SAFETY NOTICE
Do not install on a wet or windy
day or when lightning or thunder
is in the area.Do not use metal
ladder.
Installation
diagram to guide
proper installation.
Figure 1. ATSBT-BOTTOM-FM-4G Smart Bias Tee.
Male coaxial connector on the
antenna side of bias tee.
Grounding
Hardware
Male AISG Port
Female coaxial connector on
the BTS side of bias tee.
(continued on page 2)
Wear shoes with rubber soles and
heels. Wear protective clothing
including a long-sleeved shirt and
rubber gloves.
Page 1 of 5