Paradyne Hotwire 5620 User manual

TM
1
Hotwire5620 RTU Customer Premises
Installation Instructions
Document Number 5620-A2-GN10-10
August 1998
Before You Begin
An optional POTS (Plain Old Telephone Service) splitter is available for the Hotwire
5620 RTU (Remote Termination Unit). When a POTS splitter is installed, the telephone
and 5620 RADSL (Rate Adaptive Digital Subscriber Line) RTU can function at the
same time over the same pair of copper wires. In order to confirm the RTU installation,
the POTS splitter should be installed first.
To install a POTS splitter, refer to the appropriate POTS splitter document:
Document Number Document Title
5030-A2-GN10 Hotwire 5030 POTS Splitter Customer Premises
Installation Instructions
5038-A2-GN10 Hotwire 5038 Distributed POTS Splitter Customer
Premises Installation Instructions
Package Checklist
Verify that your package contains the following:
Model 5620 Remote Termination Unit (RTU)
DSL interface cable with RJ11 connectors
Power cord with power transformer
Two ferrite chokes
Warranty card
Wiring and Cables Needed
The following wiring and standard connectors are used with this product:
New or existing unshielded twisted-pair wiring (CAT3 or better). The CAT3 wiring
must meet EIA/TIA-568 specifications with 24 AWG (.5 mm) or 26 AWG (.4 mm).
Standard RJ11 wall jack.
Standard Ethernet 8-pin, non-keyed modular plug for a PC or workstation. An
Ethernet straight-through or crossover cable is used. Refer to Installing the Hotwire
5620 RTU,
page 6, for Ethernet cable details.

2
What Does the Hotwire RADSL RTU Do?
The Hotwire 5620 RTU is a component in the Hotwire DSL Access System. This
system provides high-speed Internet or corporate LAN access over traditional
twisted-pair copper telephone wiring.
DSL Access with a POTS Splitter
Copper pairs run from the central office (CO) to the customer premises (CP) to create
the local loop. The local loop terminates on the customer premises at the demarcation
point in a punchdown block or network interface device (NID).
97-15346-02
Punchdown
Block or NID
DSL
Jack RTU
New Wiring Connections Existing Wiring (POTS)
Customer Premises (CP)
DSL
Ethernet
Crossover
Cable Ethernet
Cable
or
Central
Office
(CO)
Demarcation
Point
Local Loop
Hub
CP
POTS
Splitter
DSL – Digital Subscriber Line POTS – Plain Old Telephone Service
NID – Network Interface Device RTU – Remote Termination Unit
POTS
End-user
Systems
Network
Service
Provider
(NSP)

3
When a POTS splitter is used at both ends of the local loop, wiring is connected:
From the demarcation point to the CP POTS splitter, and
From the demarcation point to the DSL jack.
NOTES:
— End-user system is used to represent any PC with an Ethernet connection and
DSL-based service.
— Network Service Provider (NSP) is used to represent any Internet Service
Provider (ISP) or remote LAN access provider.
DSL Access without a POTS Splitter
When the 5620 RTU is installed without a POTS splitter, a second telephone wiring pair
is needed for DSL access.
97-15345-02
Punchdown
Block or NID
DSL
Jack RTU
Customer Premises (CP)
POTS
DSL
Ethernet
Crossover
Cable Ethernet
Cable
or
Central
Office
(CO)
Demarcation
Point
Local Loop
Hub
New Wiring Connections Existing Wiring (POTS)
End-user
Systems
DSL – Digital Subscriber Line POTS – Plain Old Telephone Service
NID – Network Interface Device RTU – Remote Termination Unit
Network
Service
Provider
(NSP)

4
Installing the DSL Access Wiring
The local loop terminates at the punchdown block or NID. Wiring must be connected
from the customer premises side of the punchdown block or the NID to an RJ11 wall
jack. Typically, the punchdown block is installed in commercial locations and the NID is
installed in residential locations.
Procedure
1. Access the punchdown block or NID.
!WARNING:
Do not continue unless the DSL access line from the local loop has been
disconnected at the NID or punchdown block. Refer to
Important Safety
Instructions, page 13.
2. Disconnect the DSL access pair from the local loop. A punchdown block is used
without a POTS splitter in the following example.
ABCD
DSL
Access
from Local
Loop
Wiring to
DSL Jack
Bridge Clip
Punchdown Block
97-15348
Demarcation Point
Customer Premises
In the next example, a NID is used without a POTS splitter. It includes an existing
POTS line and a second pair installed for DSL access.

5
3. Locate the DSL pair of T1/R1 connectors on the customer premises side of the
NID or punchdown block. Attach the wiring that will be connected to the DSL jack.
DSL/POTS
Access from
Local Loop
Wiring to
DSL Jack
Telephone Network Interface Device (NID)
Ground
Tip
T1
(Green)
Ring
R1
(Red)
97-15438-01
Existing POTS
Wiring to
Telephone
Demarcation Point
Customer Premises
DSL Pair
POTS Pair
The 5620 RTU connects to the local loop via wiring from the demarcation point to
an RJ11 wall jack. The DSL twisted-pair wiring from the local loop terminates at a
new or existing wall jack. It may be necessary to install a standard single RJ11 jack
or replace a single jack with a double RJ11 wall jack.
97-15343-0
2
DSL
RJ11
Jack
Central
Office
Punchdown
Block or NID
Customer Premises
POTS/DSL
Local Loop
Demarcation Point DSL
Twisted-pair
Wiring
RTU

97-15300a
RJ11 Wall Jack
or
6
Procedure
1. Wiring can be run from the
punchdown block or NID to a
new or existing wall jack. Match
the pair colors on both ends.
2. Label the DSL jack.
3. Reconnect the DSL access pair
at the punchdown block or NID.
Refer to
Installing the DSL
Access Wiring
, page 4 . Tighten
both terminal screws with a flat-
blade screwdriver.
The RJ11 6-pin jack uses the center two pins. For pin assignments, refer to Cables &
Connectors
, page 11.
Installing the Hotwire 5620 RTU
Place the 5620 RTU on a flat surface with clearance for the rear connectors.
Procedure
1. Use the RJ11 6-pin cable for the DSL connection. Insert one end of the cable into
the jack labeled DSL. Insert the other end into the wall jack labeled DSL.
97-15300-01
DSL
Jack
POWER ETHERNET
DSL
Hotwire RTU

7
2. Use an 8-pin Ethernet cable for the Ethernet connection. Insert one end of the
cable into the jack labeled ETHERNET.
Use a straight-through cable and connect the other end to an Ethernet hub,
or
97-15303-01
Ethernet
Hub
Ethernet
Line
POWER ETHERNET DSL
Hotwire RTU
Ethernet
Cable
Use an Ethernet crossover cable and connect the other end to the Ethernet
Network Interface Card (NIC) in the PC.
97-15303b
PC with Ethernet
Network Interface
Card
Ethernet
Line
POWER ETHERNET DSL
Hotwire RTU
Ethernet
Cable
For RTU cable pin assignments, refer to Cables & Connectors , page 11.

496-14952
97-15303c
Ethernet
Line
POWER ETHERNET DSL
Hotwire RTU
Ferrite
Choke
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3. Place the large ferrite choke on the
Ethernet cable as closely as possible to
the RTU. Pass the Ethernet cable through
the ferrite choke twice, creating a loop as
shown.
4. Close the two halves
around the cable and
snap the ferrite choke
shut. Press down on the
plastic latch to secure
the ferrite choke in place
around the cable.
5. Insert the power cord’s round end into the jack labeled POWER. Attach the ferrite
choke on the power cord as closely as possible to the RTU. Pass the power cable
through the ferrite choke twice, creating a loop as shown.
97-15796
POWER ETHERNET DSL
Hotwire RTU
Power
Jack
or
Ferrite
Choke
6. Close the two halves around the cable and snap the ferrite choke shut. Press
down on the plastic latch to secure the ferrite choke in place around the cable.
7. Plug the transformer into an AC outlet. The RTU hardware installation is now
complete. When the power cord is installed, the RTU goes through a power-on
self-test.

9
Power-On
When power is applied, the RTU performs self-diagnostics and the PWR LED is on.
The self-diagnostics includes a power-on self-test. During the power-on self-test, all of
the LEDs turn on for one second.
TST DSL ETHERNET ALMPWR
TM
98-15835
Power – green
Alarm – red
Test – yellow
Digital Subscriber Line – green
Ethernet Link – green
5620
Refer to Troubleshooting, page 10, for LED indications requiring action.
Status LEDs
All of the LEDs turn on and off during the power-on self-test. After a successful
self-test, the LEDs should appear as indicated in BOLD in the Condition column below.
LED Condition Status
PWR ON RTU has power.
ALM OFF
ON
No active alarms.
An alarm condition exists.
TST OFF
ON
No active tests.
The TST LED is on during the power-on self-test and
during a test initiated by the NSP.
DSL Blinking
ON
OFF
RTU is establishing the active DSL link. The LED blinks
on and off about five times per second.
The DSL link is now active and ready to transmit and
receive data.
The DSL link has not been established.
ETHERNET ON
OFF
The Ethernet 10BaseT connection to the Ethernet hub or
PC is active.
No Ethernet 10BaseT device is detected.

10
Troubleshooting
LED Symptom Action
All LEDs remain on. The RTU is not functional. If the LEDs remain on after five
minutes, contact the NSP.
ALM LED remains
on. The power-on self-test may have failed. Unplug the unit and reapply power. If the alarm LED is still on, contact the NSP.
ALM and TST
LEDs are on. Firmware download may be in progress. If the LEDs remain on after five minutes, contact the NSP.
DSL LED is off. Verify that the DSL cable is securely installed on both ends. If
the problem continues, contact the NSP.
DSL LED continues
to blink after the
power-on self-test.
The RTU is attempting to establish the DSL link. If the DSL
LED continues to blink for more than five minutes, contact the
NSP.
DSL LED is on and
there is no data
transmission.
The DSL link has been established but there is no data
transmission. First, verify the Ethernet connection. If the
problem persists, contact the NSP.
DSL and Ethernet
LEDs are on and
there is no data
transmission.
The DSL and Ethernet links have been established but there is
no data transmission. If the problem continues, contact the
NSP.
Ethernet LED is off. Verify that the Ethernet 10BaseT cable is securely installed at
both ends, and at least one PC is connected and powered on.
Verify that the correct straight-through or crossover cable is
installed. Refer to
Installing the Hotwire 5620 RTU, page 6.
PWR LED is off. Check that the power cord is securely installed on both ends.
If no LEDs are on, the power supply may be defective. Test the
outlet to verify power. If the problem persists, contact the NSP.
If other LEDs are on, the PWR LED may be burned out. Unplug
the unit and reapply power; watch all LEDs during the
power-on self-test to verify if the PWR LED is functioning.
TST LED is on. A test initiated by the NSP may be active. Wait five minutes.
If the TST LED does not go off, contact the NSP.
Increasing the Number of End-User Systems
A single PC is attached to the Hotwire 5620 RTU using an Ethernet crossover cable. To
increase the number of PCs, connect all PCs to an Ethernet hub using a
straight-through cable.
The 5620 RTU can support up to 32 PCs. Verify any planned changes with the NSP.