Installing a DC or DC/EQ Module in a
Multimedia Stretch Tap
Installation Instructions
Overview
Overview, Continued
Installing the Module
Scope
The proper orientation of the DC or DC/EQ module depends
The information in this document applies to the Multimedia
on the intended direction of signal flow. The following
Stretch Tap, Surge-Gap Stretch Tap, and Multimedia Stretch
instructions include two options:
Tap-Technician Access. It does not apply to other taps, such
Option 1 makes the lower left tap port the signal input
as the Flexible Solutions Tap.
(See Option 1 diagrams).
This document is intended for authorized service personnel
Option 2 makes the lower left tap port the signal output
who have experience working with similar equipment. The
(See Option 2 diagrams).
service personnel should have appropriate background and
Choose the appropriate option based on the direction of
Introduction
knowledge to complete the procedures described in this
signal flow desired at the tap.
The family of Multimedia Stretch™ Taps consists of the
document.
Multimedia Stretch Tap (MST), Surge-Gap™ Stretch Tap
Qualified Personnel
Follow these steps to install the module.
Only appropriately qualified and skilled service personnel
1.
(SGST), and Multimedia Stretch Tap-Technician Access
(MST-TA). The tap circuit board requires a plug-in
directional coupler (DC) module to set the tap loss value and
allow RF signals to pass through the tap. The module value is
selected for each installation to provide the proper RF level
output from the subscriber tap ports.
A directional coupler/equalizer (DC/EQ) module can be
used instead of a DC. The DC sets the tap value, while the EQ
should attempt to install, operate, maintain, and service this
product.
3.
operate, maintain, and service this product. Otherwise,
implement the procedures in this document.
Carefully plug the module into the socket. Be sure that
all pins on the module align with the corresponding
personal injury or equipment damage may occur.
DC/EQ can equalize the tap port from 5 MHz to 1 GHz in
on the Multimedia Stretch Tap circuit board.
Position the module to correspond with the direction of
Option 2.
You may find the following publications useful as you
correctly positioning the stretch tap DC or DC/EQ module
2.
Allow only qualified and skilled personnel to install,
the DC/EQ has any effect on the feeder cable signal. The
The information in this document will assist technicians in
board.
the RF signal flow direction as shown in Option 1 or
Related Publications
Purpose
Locate the directional coupler socket on the tap circuit
WARNING:
controls the output tilt to the drop cables. Neither action by
steps of 3 dB from 3 to 18 dB.
To Install the DC or DC/EQ Module
holes in the directional coupler socket.
4.
Refer to the Multimedia Stretch Tap Installation and
Operation Guide, part number 562384 for additional setup
instructions.
Multimedia Stretch Tap Installation and Operation Guide,
part number 562384
Surge-Gap Stretch Tap Installation and Operation Guide,
part number 4014132
Multimedia Stretch Tap-Technician Access Installation and
Operation Guide, part number 590212
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Installing the Module, Continued
Installing the Module, Continued
Technical Support Information
Option 1
Option 2
If the module is positioned as shown below:
If the module is positioned as shown below:
Region
North America
Centers
Cisco Services
Atlanta, Georgia
United States
Europe,
Middle East,
Africa
Belgium
Japan
Japan
Korea
Korea
China
(mainland)
China
All other
Asia-Pacific
countries &
Australia
Brazil
Hong Kong
Mexico,
Central
America,
Caribbean
Mexico
All other Latin
America
countries
Argentina
Signal
Flow
Down
Signal
Flow
Up
Then the signal flow is as follows:
Then the signal flow is as follows:
Brazil
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