Paradyne Hotwire 8776 M/SDSL User manual

TM
1
8776-A2-GZ40-10 August 1998
Hotwire8776 M/SDSL Chassis-Mounted
Termination Unit, with G.703 Interface
Installation Instructions
Document Number 8776-A2-GZ40-10
August 1998
Hotwire8776 E1 M/SDSL Termination Unit
The Hotwire 8776 Termination Unit is a circuit card assembly (CCA) that contains
four E1 Multirate Symmetric Digital Subscriber Line (M/SDSL) ports with a G.703
Interface. When the 8776 Termination Unit is used in a Hotwire 8600 or 8800
Digital Subscriber Line Access Multiplexer (DSLAM) chassis, it transports up to
2048 kbps signals over traditional twisted-pair telephone wiring.
!HANDLING PRECAUTIONS FOR
STATIC-SENSITIVE DEVICES
This product is designed to protect sensitive components from damage
due to electrostatic discharge (ESD) during normal operation. When
performing installation procedures, however, take proper static control
precautions to prevent damage to equipment. If you are not sure of the
proper static control precautions, contact your nearest sales or service
representative.
Package Checklist
Verify that your package contains the following:
Hotwire model 8776 circuit card assembly
Warranty card
 Hotwire 8776 M/SDSL Termination Unit, with G.703 Interface, User’s Guide ,
Document No. 8776-A2-GB20
Tool Required
Small- to medium-size flat-blade screwdriver.
496-15104

2 8776-A2-GZ40-10
August 1998
Technical Specifications
Specifications Criteria*
Size Length 10 inches (25.4 cm)
Height 12.3 inches (31.1 cm)
Width 0.8 inch (2.0 cm)
Weight Approximately 1.3 lbs. (0.6 kg)
Approvals
Safety Certifications Refer to the equipment’s label for approvals on product.
Power The Hotwire Model 8776 Termination Unit contains a
DC-to-DC converter that requires –48V power input. The
–48V power is distributed through the Hotwire DSLAM
backplane.
Maximum Power Dissipation = 19 watts
Cables and Cable Guide Part Number Description
8700-F1-500 Cable Guide for 8800 DSLAM
Physical Environment
Operating temperature
Storage temperature
Relative humidity
Shock and vibration
32°to 122°F (0°to 50°C)
–4°F (–20°C) to 158°F (70°C)
5% to 85% (noncondensing)
Withstands normal shipping and handling.
* Technical specifications are subject to change without notice.
Planning the 8776 Termination Unit Installation
Review the following list to help plan for the installation.
Obtain the applicable cables; refer to
Cables You Need on page 3.
Make sure the Hotwire DSLAM chassis is installed and power is supplied to
the chassis.
After the Hotwire 8776 Termination Unit is installed, there are configuration
procedures that must be performed before you can begin to use the
termination unit. Refer to the
Hotwire 8776 M/SDSL Termination Unit, with
G.703 Interface, User’s Guide
, for more detailed configuration procedures.

3
8776-A2-GZ40-10 August 1998
Cables You Need
The following standard cable is used with this product.
For the network connection:
Plug-ended Telco 50-pin cable for connection from the Hotwire 8600 DSLAM
LINE port or one of the Hotwire 8800 DSLAM LINES ports to the Main
Distribution Frame (MDF) or other demarcation point.
For the DTE connection:
For further information refer to Appendix C,
Connector Pin Assignments , in
the User’s Guide.
Installing DSL Cards
Use a small- to medium-size flat-blade screwdriver to install the 8776 Termination
Unit.
When installing the unit
into a . . . Place the termination unit in . . .
Hotwire 8600 DSLAM base
chassis Slot 2 or 3 (Slot 1 of the Hotwire 8600 DSLAM base chassis must contain a Management Communications
Controller (MCC) card).
Hotwire 8600 DSLAM
expansion chassis Slot 1, 2, or 3.
Hotwire 8800 DSLAM
chassis Any one of the first 18 slots (i.e., Slot 1 through 18).
A Hotwire 8776 Termination Unit can be installed, removed, and replaced from a
the DSLAM chassis without disrupting service to the other cards in the chassis.
NOTE:
When installing the Termination Unit, you need to remove the filler plate
before proceeding.
Do not discard unused filler plates. Each slot in the chassis must contain a
circuit card or a filler plate. Store all unused filler plates in a safe place. You
may need to use the filler plates to cover open slots in the chassis at a later
time.

4 8776-A2-GZ40-10
August 1998
Procedure
To install the Hotwire 8776 Termination Unit:
1. Determine in which slot the Termination Unit will be installed. Verify that cards
in adjacent slots have been fastened.
2. Remove the filler plate from the installation slot.
3. Insert the Termination Unit:
— For a Hotwire 8600 DSLAM chassis – hold the 8776 Termination Unit
horizontally with component side facing up and insert it into the left and
right card guides.
A
INPUT
AC
48VDC CLASS 2 OR
LIMITED PWR SOURCE
RTN48V
AAB B
LAN/WAN SLOT
2
46
B
.
.
.
3
.
1
2
POSITION
STACK ALM A
IN
B
DC FUSES 5DC PWR
FAN
OUT SERIAL MCC 1
MANAGEMENT
3
LINE 1
2
3
98-15832a
SYSTEM
OKAlrm Test TXRXCol
ETHERNET
ESD
4
M/SDSL
8776
SYSTEM
OKAlrm Test 123 123
G.703
DSL PORT
4
— For a Hotwire 8800 DSLAM chassis – hold the 8776 Termination Unit
vertically with component side facing right and insert it into the top and
bottom card guides.
ALARMS
Major MinorFanBA
POWER
MCC
SYSTEM
OK
Alm
Test
ETHERNET
TX
RX
Coll
98-15328
a
MGT
SERIAL
MGT
10BT ALARM
SLOTS 1 - 6
SLOTS 7-12
SLOTS 13-18
LINES
AB
-48V (A)
-48V INPUT
-48V (B) RET (A) RET (B) FR GND
246810 12 14 16 18
19
13579
11 13 15 17
LAN/WAN SLOT 20
LAN/WAN SLOT
Slot 1DSL Card
4
M/SDSL
8776
SYSTEM
OKAlrm
Test
123
123
G.703
DSL PORT
4

5
8776-A2-GZ40-10 August 1998
4. Slide the 8776 Termination Unit into the slot until the power and network
connectors seat firmly in the mating connectors on the backplane.
CAUTION:
Do not force the 8776 Termination Unit into the slot. If it does not seat
properly, remove the card and reinstall it. If it still does not seat
properly, call your service representative.
The 8776 Termination Unit performs a power-up self-test. All of the LEDs turn
ON and OFF briefly. When the self-test is completed successfully, the
SYSTEM OK LED will turn ON. Make sure the SYSTEM OK indicator on the
8776 Termination Unit faceplate is ON.
5. If the LED is not ON, refer to Chapter 6,
Messages and Troubleshooting , in
the User’s Guide.
6. Secure the 8776 Termination Unit by fastening the screws at each end of the
faceplate.
NOTE:
The 8776 Termination Unit may be replaced without system disruption (i.e.,
you can remove and reinstall a card without powering down the Hotwire
DSLAM chassis and disrupting service to the other cards). To remove an
8776 Termination Unit from the Hotwire DSLAM chassis, unfasten the screws
on both ends of the faceplate. Then push the ejector handles outward and
slide the card out.
Ensure that adjacent cards are fastened before removing a card.
When swapping the old 8776 Termination Unit with a new 8776 Termination
Unit, note that the 8600 DSLAM retains the Media Access Control (MAC)
address, also referred to as the physical address. This means that the new
8776 Termination Unit will have the same MAC address as the old one.

6 8776-A2-GZ40-10
August 1998
Cable Management
The optional Cable Guide (see Technical Specifications on page 2 for its part
number) connects to the front of the Hotwire 8800 DSLAM and provides strain
relief and control of the DTE cables. Install the Cable Guide before installing the
cables.
98-15777-01
ALARMS
Major MinorFanBA
POWER
MGT
SERIAL
MGT
10BT ALARM
SLOTS 1 - 6
SLOTS 7-12
SLOTS13-18
LINES
-48V(A)
-48V INPUT
-48V (B)
RET (A)
RET (B)
FR GND
246810 12 14 16 18
19
1357911 13 15 17
LAN/WAN SLOT 20
LAN/WAN SLOT
SLOTS13-18
4
OKAlrm
Test
123
123
4
4
OKAlrm
Test
123
123
4
4
OKAlrm
Test
123
123
4
4
OKAlrm
Test
123
123
4
4
OKAlrm
Test
123
123
4
4
OKAlrm
Test
123
123
4
4
OKAlrm
Test
123
123
4
4
OKAlrm
Test
123
123
4
4
OKAlrm
Test
123
123
4
4
OKAlrm
Test
123
123
4
4
OKAlrm
Test
123
123
4
4
OKAlrm
Test
123
123
4
4
OKAlrm
Test
123
123
4
4
OKAlrm
Test
123
123
4
4
OKAlrm
Test
123
123
4
4
OKAlrm
Test
123
123
4
4
OKAlrm
Test
123
123
4
4
OKAlrm
Test
123
123
4
4
OKAlrm
Test
123
123
4
OKAlrm
Test
1234
Front Rail
Existing
Screw
Bottom Hole for
Mounting in 19"
Rack or Cabinet
Front Rail
Top Hole for
Mounting in 23"
Rack or Cabinet
Screw
Washer
and Nut

7
8776-A2-GZ40-10 August 1998
Connecting to the DTE Equipment
Connection to the four ports of the 8776 Termination Unit is through the 50-pin
interface connector on its faceplate. Refer to Appendix C,
Connector Pin
Assignments
, in the User’s Guide.
Procedure
To connect the Hotwire 8776 Termination Unit to your DTE equipment:
1. Connect the 50-position connector of the cable to the connector on the
faceplate of the 8776 Termination Unit. Align one end of the cable connector
with the card connector, then push on the cable connector until it seats.
The end of the cable connector has a release button. To remove the
connector, press the release button and pull the connector away from the
card.
98-15726-01
-48V RTN F
G
ABAB
48VD
ETHERNET
MCC
8000
SYSTEM
OKAlrm
Test
TXRXCol
4
SYSTEM
OKAlrm
Test
123
123
G.703
DSL PORT
4
4
SYSTEM
OKAlrm
Test
123
123
G.703
DSL PORT
4
G.703
Interface
2. Feed the cable through the Cable Guide if it is in use. When all cables are
installed, anchor them with cable ties to the rack, DSLAM, or Cable Guide.
3. Connect the four terminating connectors to your DTE equipment.

8 8776-A2-GZ40-10
August 1998
Connecting to an MDF
You can connect the Hotwire DSLAM chassis containing the 8776 Termination
Unit to an MDF or other demarcation point. Do not connect it to a POTS splitter.
Procedure
To connect the Hotwire DSLAM chassis containing the 8776 Termination Unit to
an MDF:
1. Plug the Telco 50-pin cable into the appropriate LINE port on the front panel
of the chassis:
—On a Hotwire 8600 DSLAM chassis:
98-15833-01
A
INPUT
AC
48VDC CLASS 2 OR
LIMITED PWR SOURCE
RTN48V
AAB B
LAN/WANSLOT
2
46
B
.
.
.
3
.
1
2
POSITION
STACKALM A
IN
B
DC FUSES
T4A, MIN. 48V 5PWR
FAN
OUT SERIAL MCC 1
MANAGEMENT
3
LINE
1
2
3
SYSTEM
OKAlrm Test TXRXCol
ETHERNET
MCC
8000
Anchor
Mount
Telco 50-Pin
Connector
ESD
4
M/SDSL
8776
SYSTEM
OKAlrm Test 123 123
G.703
DSL PORT
4
4
M/SDSL
8776
SYSTEM
OKAlrm Test 123 123
G.703
DSL PORT
4

9
8776-A2-GZ40-10 August 1998
—On a Hotwire 8800 DSLAM chassis:
SLOTS 13-18
SLOTS 7-12
SLOTS 1-6
98-15325-01
Anchor Mount
Telco 50-Pin
Connector
LINES
SLOTS 1-6
LINES
Shorter
Telco
Captive Screw
2. Replace the longer Telco cable captive screw with a shorter connector
captive screw, which is provided with the Hotwire DSLAM chassis.
3. Insert a cable tie (provided with Hotwire DSLAM chassis) through the tie
mount to hold the Telco 50-pin connector in place. If more than one Telco
cable is being connected, span the two or three connectors.
4. Make sure the other end is connected to the appropriate MDF or demarcation
point.
Refer to Appendix D,
Cables and Pin Assignments , in the User’s Guide for
pinouts.
NOTE:
If you are connecting the Telco 25-pair, 50-pin cable to an MDF, a converter
may be necessary for terminating the other end of the cable on a punchdown
block before cross-connecting to an MDF.

10 8776-A2-GZ40-10
August 1998
Model 8776 Termination Unit LEDs
The following table describes the meaning and states of the LEDs on the 8776
Termination Unit faceplate.
Type LED LED is . . . Indicating . . .
SYSTEM OK Green
Off
Normal operation; termination unit functioning
normally.
No power to termination unit, or failure has
occurred.
Alrm Amber
Off
Device failure, or Power-On Self-Test (POST)
is not complete.
No alarms.
Test Amber
Amber,
flashing
Off
Loopback test or 511 test pattern in progress.
POST in progress.
No tests currently active.
G.703 1, 2, 3, 4 Green
Amber
Amber,
flashing
Off
Recoverable signal present on the G.703
network.
Remote Alarm Indication (RAI) present.
An OOF condition exists.
The DSL LINK is down.
DSL PORT 1, 2, 3, 4 Green
Amber
Amber,
flashing
Off
DSL link is up.
DSL training in progress.
OOF condition.
DSL link is down.

*8776–A2–GZ40–10*
4
M/SDSL
8776
SYSTEM
OKAlrm
Test
123
123
G.703
DSL PORT
4
98-16041-0
1