The Hotwire RADSL System enables simultaneous high-speed digital data
access and analog voice service over the same twisted-pair telephone line. The
simultaneous access to RADSL (Rate Adaptive Digital Subscriber Line) and
POTS (Plain Old Telephone Service) requires the installation of a POTS splitter
at both ends of the local loop; i.e., at the central office (CO) and at the customer
premises (CP).
The POTS splitter filters out the DSL signal and allows the POTS frequencies to
pass through. Each central office POTS splitter card contains 12 filters to serve
12 local loops with DSL-based service and POTS. The POTS splitter card is a
passive device and requires no power. The POTS splitter chassis is shipped
separately from the POTS splitter card(s). Two chassis are available:
Single-card chassis which can be placed on a tabletop or installed in a rack.
Six-card chassis which must be installed in a commercial EIA-standard
19″ or 23″ rack or cabinet.
Before You Begin
Consider the following before installing the POTS splitter:
Installation Site
The location should be well-ventilated, clean, and free of environmental
extremes. Allow clearance at the front of the POTS splitter chassis to provide
access to the cables.
Cabling
Three Telco 50-conductor cables are used to connect to the three interfaces
on the POTS splitter card. The location of the system hardware affects the
length of the three cables.
Cables and Hardware You Need
For each POTS splitter card, obtain three Telco 50-conductor cables with
50-position amphenol-type connectors at the appropriate length based on cabling
requirements in your environment. A Y-cable is available for the DSL connection.
Refer to
5020-A2-GN10-20
Cabling Overview
March 1998
, page 11, and
Connector Pin Numbers,
page 17.
1
Hotwire 5020 POTS Splitter Card Package Checklist
Verify that your POTS splitter card package contains the following:
POTS splitter card
Plastic bag with three of each item:
— Plastic tie-wrap anchors
— #4-40 x 1/4″ screws
— #4-40 x 1/4″jack screws
—8″ cable tie wraps
Verify that your single-card POTS splitter chassis package contains the following:
Single-card POTS splitter chassis
Two brackets for 19″ racks and two brackets for 23″ racks
Small plastic bag with:
— Six #10-32 x 1/4″Phillips flat-head mounting screws
— Four #10-32 x 1/2″ Phillips-head mounting screws
— Four #12-24 x 1/2″Phillips-head mounting screws
— Four #12-24 speed nuts
— Four black rubber feet
Verify that your six-card POTS splitter chassis package contains the following:
- Six-card POTS splitter chassis with five filler panels. Each filler panel is
attached to the chassis with two 1/4-turn fasteners. Keep filler panels
installed in all unused slots.
- Two brackets for 19″ racks and two brackets for 23″ racks
- Small plastic bag with:
— Six #10-32 x 1/4″ Phillips flat-head mounting screws
— Four #10-32 x 1/2″ Phillips-head mounting screws
— Four #12-24 x 1/2″Phillips-head mounting screws
— Four #12-24 speed nuts
— Four black rubber feet (discard)
- Warranty card
CO POTS Splitter
Six-Card Chassis
Tools Required
HA small #1 or #2 Phillips screwdriver to tighten the POTS splitter card
fasteners.
HA large #3 or #4 Phillips screwdriver to install the chassis into a rack.
HA flat-blade screwdriver to install the chassis grounding wire.
5020-A2-GN10-20
Filler
Panels
March 1998
97-15430
3
Product-Related Documents
The 5020 CO POTS splitter card works in conjunction with the Hotwire 8540 or
8546 RADSL card in the central office in the 8600 or 8800 DSLAM chassis, and
a POTS splitter and Remote Termination Unit (RTU) at the customer premises.
Refer to the following documents for product-specific information.
Hotwire 5216 Remote Termination Unit (RTU) Customer
Premises Installation Instructions
Hotwire 5246 Remote Termination Unit (RTU) Customer
Premises Installation Instructions
Hotwire 5446 Remote Termination Unit (RTU) Customer
Premises Installation Instructions
Hotwire 5620 Remote Termination Unit (RTU) Customer
Premises Installation Instructions
Hotwire 8540 Digital Subscriber Line (DSL) Card
Installation Instructions
Hotwire 8546 Digital Subscriber Line (DSL) Card
Installation Instructions
Hotwire 8600 Digital Subscriber Line Access Multiplexer
(DSLAM) Installation Guide
8800-A2-GN21
Contact your sales or service representative to order additional product
documentation.
Paradyne documents are also available on the World Wide Web at:
http://www.paradyne.com
Select
4
Hotwire 8800 Digital Subscriber Line Access Multiplexer
(DSLAM) Installation Guide
Service & Support → Technical Manuals
March 1998
5020-A2-GN10-20
POTS Splitter Chassis Installation
1
The following figure provides an example of two POTS splitter chassis center
mounted in a 19″ rack with two 8800 DSLAMs in a 19″ cabinet.
19" Cabinet19" Rack
ALARMS
POWER
MajorMinorFanBA
8800
DSLAM
Chassis
B
A
ALARMS
POWER
MajorMinorFanBA
B
A
Planning the POTS Splitter Chassis Installation
The POTS splitter chassis is shipped with mounting brackets to allow installation
in a rack that is either 19″ or 23″ wide. To plan the bracket and chassis
installation, determine:
Width of the rack: 19″ or 23″.
Chassis position in the rack: center mounted or front mounted. Center
mounted is recommended for convenient access to cables.
Whether the rack has mounting rails with threaded or non-threaded screw
holes.
Six-Card
POTS
Splitter
Chassis
97-15426a-0
If a single-card 8600 DSLAM chassis is being placed on a table top. If so,
plan to install the rubber feet as shown on page 2. Discard rubber feet for
any rack-mounted chassis.
NOTE:
In order to reduce the risk of accidental tip over, it is strongly recommended
that the chassis be installed into the rack from the bottom up.
5020-A2-GN10-20
March 1998
5
Installing the Brackets
The brackets can be installed in the chassis in a center-mounting or
front-mounting configuration. Mounting holes are provided in the chassis for
either configuration. Install the appropriate 19″ or 23″ brackets on the single-card
or six-card chassis.
Single-Card Chassis
19-Inch Rack
23-Inch Rack
97-15486
Six-Card Chassis
Center Mount
23-Inch Rack
Front Mount
19-Inch Rack
97-15434
Select one of the next two procedures for chassis installation in a rack.
6
March 1998
5020-A2-GN10-20
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