Paradyne Hotwire 7995 User manual

1
Hotwire®TDM SHDSL Endpoints
Models 7995 and 7996
Installation Instructions
Document Number 7990-A2-GN10-00
May 2002
Product Documentation Online
Complete documentation for this product is available at www.paradyne.com. Select
Library
→
Technical Manuals
→
Hotwire DSL Systems.
Select the following document:
7990-A2-GB20
Hotwire TDM SHDSL Endpoints, Models 7995 and 7996, User’s Guide
To order a paper copy of a Paradyne document:

Within the U.S.A., call 1-800-PARADYNE (1-800-727-2396)

Outside the U.S.A., call 1-727-530-8623
Be sure to register your warranty at www.paradyne.com/warranty.
Package Checklist
Verify that your package contains:
❑Hotwire®TDM SHDSL Endpoint
❑24 VDC power transformer with separate power cable
–or –
6-conductor direct connection DC power cable
❑8-position modular-to-8-position modular network cable
❑DB9-to-8-position modular terminal cable
For Model 7995, your package should also contain a:
❑Ferrite choke
❑V.35 adapter cable assembly
Notify your sales representative if anything is missing or damaged.

2
Installation Overview
Installation and configuration of the Hotwire 799x endpoint consists of:
 Connecting power to the unit.
 Connecting to the network.
 Connecting to a DTE.
 Connecting a system terminal.
 Providing initial unit identity information or changing existing identity information.
 Configuring your unit using the Configuration Edit menus.
Before you install the unit, read the
Important Safety Instructions on page 30.
See the
Hotwire TDM SHDSL Endpoints, Models 7995 and 7996, User’s Guide for
additional information about:
 Configuration Options
 Messages and Troubleshooting
 Technical Specifications
 Connectors, Cables, and Pin Assignments
Connecting Power to the Unit
If your package includes a power transformer:
1. Plug the power cable into an AC outlet having a nominal voltage rating between
100–240 VAC.
2. Connect the power cable to the transformer.
3. Connect the output cable of the transformer to the connector marked POWER on
the rear panel.
If your package includes a direct-connection DC power cable:
Connect the unit to an external +24 or –48 VDC SELV (Safety Extra Low Voltage) power
source as described in the following section.

3
Connecting the Unit to an Optional External +24 or –48 VDC Power
Source
Using the DC power cable, the unit is capable of operating on a +24 VDC or –48 VDC
SELV power supply.
Procedure
To use the DC power cable for +24 VDC:
1. Connect the green wire to a suitable ground.
2. Connect the orange wire to the +24 VDC source.
3. Connect the white wire to the return.
4. Cut the black, red, and blue wires off at the outer insulation.
5. Plug the power connector into the unit.
Procedure
To use the DC power cable for –48 VDC:
1. Connect the green wire to a suitable ground.
2. Connect the orange wire to the –48 VDC source.
3. Connect the black wire to the return.
4. Cut the red, white, and blue wires off at the outer insulation.
5. Plug the power connector into the unit.
Power Cable Pinouts
Pin Number Wire Color Signal
1Black–48 VDC Return
2Red–48 VDC Return
3 Green Ground
4 White +24 VDC Return
5 Orange +24 VDC/–48 VDC
6 Blue No Connection
99-16291
23
546
1

4
Connecting to the Network
Procedure
To connect your unit to the network:
1. Connect one end of the supplied 8-position modular-to-8-position modular network
cable into the rear panel DSL jack.
2. Connect the other end to your DSL network interface.
NOTE:
Do
not
use a flat VF network cable as this may severely degrade the
performance of the unit. Use only Cat 5 twisted-pair network cable.
Connecting to a DTE
See
Connectors, Cables, and Pin Assignments
in the User’s Guide for specifications of
the connectors and cables.
Ferrite Choke (Model 7995)
Procedure
To install the ferrite choke onto the DTE
cable or V.35 adapter cable assembly:
1. Open the ferrite choke and place it
around the cable as close to the
cable connector as possible.
2. Close the two halves around the cable and snap the choke shut, pressing down on
the plastic latch to secure it in place.
3. Add a tie wrap (not included) to prevent the ferrite choke from slipping down the
cable.
All ferrite chokes that are supplied must be installed following these instructions to
ensure compliance with EMI regulations.
Model DTE Connection
7995 The synchronous interface is a25-pin EIA-530-A interface. Depending on the
cable used, the interface can be adapted to an X.21, RS-449, or V.35
interface.
7996 The G.703 interface is either two BNC connectors (Transmit and Receive) for
a 75-ohm unbalanced interface or an 8-position, unkeyed modular connector
for a 120-ohm balanced interface.
I
O
POWER COM PORT
Tie
Wrap
Ferrite
Choke
02-17222

5
LEDs
The following table contains a description of the LEDs on the Hotwire 799x endpoint’s
front panel.
Label Color LED is . . .*
* Slow Cycling: LED turns off and on in equal duration once per second.
Fast Cycling: LED turns off and on in equal duration 5 times per second.
Indicating . . .
POWER Green On
Off
Slow Cycling
Normal operation.
No power to the unit.
Unit is in minimum mode and a download is
required.
ALARM Red On
Off
Device failure, or self-test has failed.
Self-test passed.
TEST Yellow On
Off
Slow Cycling
Loopback test in progress.
No tests in progress.
Self-test in progress.
DSL Green On
Off
Slow Cycling
DSL link is up.
The DSL link is down.
DSL training in progress.
DTE (7995)
G.703 (7996) Green On
Off
Slow Cycling
Fast Cycling
DTE port is operational.
No signal on port or port is disabled.
G.703: Remote Alarm Indication received.
OOF, LOF, EER, or AIS condition received.
POWER ALARM TEST DSL DTE
7995TDM SHDSL
TM
®
02-17143

6
Connecting to a System Terminal
An optional system maintenance terminal may be attached to your Hotwire 799x
endpoint through the modular jack on the rear panel. The system maintenance terminal
allows you to view the status of the unit and change configuration options. The terminal
must be a VT100-compatible terminal or a PC running terminal emulation software.
Procedure
To connect your unit to a system terminal:
1. Connect the 9-pin end of the supplied terminal cable into a COM port on your PC.
2. Plug the other end into the modular jack on the rear panel.
3. Set the communication parameters on your PC or terminal to:
—9600 baud
—8 bit characters
—no parity
—1 stop bit
—no flow control
4. Press Enter from your terminal or PC to activate the Main Menu for the attached
unit.
The system runs diagnostics and status checks. After a few moments, the Main
Menu or Logon screen appears on your terminal.
main Access Level: Administrator
Model 799x
MAIN MENU
Status
Test
Configuration
Control
-----------------------------------------------------------------------------
Ctrl-a to access these functions Exit
System Operational

7
Asynchronous Terminal Interface Menu
The following illustration shows the menu paths to the different terminal screens.
Main
Status Test
System and
Test Status Performance Statistics Display LEDs Identity
DSL
Error
StatisticsDSL
Performance
Statistics
Configuration Control
Factory
Config
Configuration
Loader
Current Configuration
Edit/Display
System
Options Communication Port Management and
Communication
Change
Identity
Administer
Logins
Download
Code Apply
Download
Reset
Device
Device
Tests
Abort
All
Tests
02-17046
DSL Port
General SNMP
Management SNMP NMS Security
Communication
Protocol SNMP Traps
7995: (Not Applicable)
7996: G.703 Statistics
7995: DSL Tests
7996: DSL and G.703 Tests
7995: Sync Data Port Tests
7996: (Not Applicable)
7995: Sync Port
7996: G.703
Current
DSL
Performance
DSL Port
Threshold
Traps
Telenet
Session

8
Entering Identity Information
After accessing your unit for the first time, use the Change Identity screen to determine
SNMP administrative system information that will be displayed on the Identity screen of
the Status branch. To access the Identity screen, follow this menu selection sequence:
Main Menu → Control → Change Identity
Selecting a Configuration Method
You can make configuration changes either through a VT100-compatible terminal and
the unit’s Configuration menus or by manually changing switches on the board. The unit
is shipped with the switchpacks disabled to allow settings to be made through the
Configuration menus. See the User’s Guide for detailed information about the
configuration options and switch settings.
Configuring the Unit Using the Configuration Menus
Use the Configuration menu to select, display, or change configuration option settings.
NOTE:
The Hotwire 799x endpoint is shipped configured as an STU-R. If using this unit as
an STU-R, the configuration options may not need to be altered.
The unit has two sets of configuration option settings:
 The Current Configuration: The unit’s active set of configuration options.
 The Default Factory Configuration: A read-only configuration area containing the
factory default configuration options.

9
Displaying Configuration Options
To display configuration options, you must first load a configuration into the edit area. To
load aconfiguration option set into the configuration edit area, follow this menu selection
sequence:
Main Menu → Configuration (Load Configuration From)
Make a selection by placing the cursor at your choice and pressing Enter.
Configuration Edit/Display
The Configuration Edit/Display screen is displayed when the current or default
configuration is loaded. To access the Configuration Edit/Display screen, follow this
menu selection sequence:
Main Menu → Configuration →Current Configuration
–or –
Main Menu → Configuration → Default Factory Configuration
If you select . . . Then . . .
Current
Configuration The selected configuration option set is loaded and the Configuration Edit/Display menu screen appears.
Configuration
Loader The Configuration Loader screen is displayed allowing you to upload or download configurations from a TFTP server.
Default Factory
Configuration The selected configuration option set is loaded and the Configuration Edit/Display menu screen appears.
main/config/edit
Model:799x
CONFIGURATION EDIT/DISPLAY
DSL Port
DSL Port Threshold Traps
SYNC Port | G.703
System Options
Communication Port
Management and Communication
-----------------------------------------------------------------------------
Ctrl-a to access these functions, ESC for previous menu MainMenu Exit
Save

10
For complete details about the configuration options, see the
Hotwire TDM SHDSL
Endpoints, Models 7995 and 7996, User’s Guide.
Select . . . To Access the . . . To Configure the . . .
DSL Port DSL Interface Options (Table 1) DSL ports on the unit.
DSL Port
ThresholdTraps DSL Port Threshold Trap Options (Table 2) Threshold for DSL traps (for the STU-C only).
SYNC Port
G.703
Synchronous Data Port Options –
Model 7995 (Table 3)
G.703 Interface Options –Model
7996 (Table 4)
Synchronous DTE interface
(Model 7995)
G.703 interface
(Model 7996)
System Options System Options (Table 5) General system options of
the unit.
Communication
Port Communication Port Options (Table 6) Unit’s COM port options.
Management
and
Communication

Telnet Session Options (Table 7)

Communication Protocol Options
(Table 8)

General SNMP Management
Options (Table 9)

SNMP NMS Security Options
(Table 10)

SNMP Traps Options (Table 11)
Management supportof the
unit through SNMP and
Telnet (Telnet is for the
STU-C only).

11
Table 1. DSL Interface Options (1 of 2)
PSD Mask
Possible Settings: Symmetrical, Asymmetrical
Default Setting: Symmetrical
Determines the type of Power Spectral Density (PSD) mask used as specified in
G.992.1, Annex B.
Estimated Line Length
Possible Settings: Short, Medium, Long
Default Setting: Short
The estimated line length is the estimated distance from the local exchange to
determine the speeds that can be supported.
Start Up Margin
Possible Settings: 0dB – 15dB
Default Setting: 4dB
Specifies the Signal to Noise Ratio (SNR) margin a port must exceed to successfully
train up with the remote unit.
Max DSL Rate
Possible settings depend on whether Spectrum Management is enabled, and which
PSD mask is being used. Determines the maximum speed of the DSL line when in
Adaptive Rate mode (Max DSL Rate does not equal Min DSL Rate).
Min DSL Rate
Possible settings depend on whether Spectrum Management is enabled, and which
PSD mask is being used. Determines the minimum speed of the DSL line when in
Adaptive Rate mode (Max DSL Rate does not equal Min DSL Rate).
EIA-530 Payload Rate (for Model 7996 only)
Possible Settings: 64, 128
Default Setting: [Highest multiple of 64 Kbps supported by the DSL Line Rate]
When the remote STU-R has an EIA-530-A interface, the Payload Rate set on the
STU-C determines the port speed of the synchronous port of the STU-R. Only 64 and
128 Kbps are selectable, otherwise this field is read-only.
Remotely Initiated Loopback
Possible Settings: Enable, Disable
Default Setting: Enable
Specifies whether the endpoint will respond to a loopback command from the line
card.

12
Peer IP Address
Possible Settings: 001.000.000.000 –223.255.255.255, Clear
Default Setting: 000.000.000.000
Specifies the peer IP address for the remote management link on the DSL loop.
Circuit Identifier
Possible Settings:
ASCII text field , Clear
Default Setting: [blank]
Uniquely identifies the circuit number of the transmission vendor’s DSL line for
troubleshooting purposes.
Table 2. DSL Port Threshold Trap Options (1 of 2)
ES Trap Threshold
Possible Settings: 1–900, or 0 to Disable
Default Setting: 120
Specifies the threshold for Error Seconds events in a 15-minute interval after which a
trap will be sent.
SES Trap Threshold
Possible Settings: 1–900, or 0 to Disable
Default Setting: 15
Specifies the threshold for Severely Error Seconds events in a 15-minute interval after
which a trap will be sent.
UAS Trap Threshold
Possible Settings: 1–900, or 0 to Disable
Default Setting: 0
Specifies the threshold for Unavailable Seconds events in a 15-minute interval after
which a trap will be sent.
LOSW Trap Threshold
Possible Settings: 1–900, or 0 to Disable
Default Setting: 0
Specifies the threshold for Loss of Sync Word Seconds events in a 15-minute interval
after which a trap will be sent.
Table 1. DSL Interface Options (2 of 2)

13
CRC Trap Threshold
Possible Settings: 1–900, or 0 to Disable
Default Setting: 0
Specifies the threshold for CRC events in a 15-minute interval after which a trap will be
sent.
Attenuation Trap Threshold
Possible Settings: 1–127 dB, or 0 to Disable
Default Setting: 4
Specifies the threshold for loop attenuation in a 15-minute interval after which a trap
will be sent.
Margin Trap Threshold
Possible Settings: 1–15 dB, or 0 to Disable
Default Setting: 4
Specifies the threshold for the Signal-to-Noise ratio margin in a 15-minute interval
after which a trap will be sent.
Table 3. Synchronous Data Port Options –Model 7995 (1 of 3)
Port Type
Possible Settings: E530A, V.35, RS449, X.21
Default Setting: E530A
Determines the port type for the data port.
Payload Rate
Possible Settings: 64 –2048 Kbps in 64k increments
Default Setting: 192 Kbps
Specifies the payload rate of the port. This option is not displayed on the unit when
Adaptive Rate is enabled. The STU-C configures the payload rate forthe STU-R when
Adaptive Rate is disabled (Max DSL Rate = Min DSL Rate,seeTable 1, DSL Interface
Options).
Table 2. DSL Port Threshold Trap Options (2 of 2)

14
Transmit Clock Source
Possible Settings: Internal, External
Default Setting: Internal
Specifies whether the transmitted data for the synchronous data port is clocked
using an internal clock provided by the DCE or an external clock provided by the
DTE connected to the synchronous data port.
Invert Transmit Clock
Possible Settings: Disable, Enable
Default Setting: Disable
When configured as the STU-C and Transmit Clock Source is set to External,
specifies whether the clock supplied by the the unit on the TXC interchange circuit DB
(ITU-T 114) is phase inverted with respect to the Transmitted Data interchange circuit
BA (ITU-T 103). This configuration option is useful when an excessive cable length
between the unit and the DTE causes errors.
Send All Ones on Data Port Not Ready
Possible Settings: Both, Disable, DTR, RTS
Default Setting: Both
Specifies the conditions on the data port that determine when valid data is not being
sent from the DTE. When this condition is detected, all ones are sent to the network.
Action on Network LOS Alarm
Possible Settings: Halt, None
Default Setting: Halt
Specifies the action taken on the synchronous data port when an LOS (Loss Of
Signal) alarm is received on the DSL interface.
Network Initiated Data Channel Loopback
Possible Settings: Disable, Enable
Default Setting: Disable
Allows the initiation and termination of a Data Channel Loopback (DCLB) by the
receipt of a DCLB-actuate sequence or DCLB-release sequence from the network or
far-end device.
Table 3. Synchronous Data Port Options –Model 7995 (2 of 3)

15
Port (DTE) Initiated Loopbacks
Possible Settings: Disable, DTLB, DCLB, Both
Default Setting: Disable
Allows the initiation and termination of a local Data Terminal Loopback (DTLB) or
remote Data Channel Loopback (DCLB) by the DTE connected to this port. (DTLB is
equivalent to a V.54 loop 3, and DCLB is equivalent to a V.54 loop 2.) Control of these
loopbacks is through the DTE interchange circuits as specified by the V.54 standard.
Elastic Store
Possible Settings: Disable, Enable
Default Setting: Enable
When configured as the STU-C and Transmit Clock Source is set to External, used to
enable or disable a first-in, first-out (FIFO) buffer circuit for the incoming external
clock. This circuit is used to compensate for the differences between the frequencies
of the data clocks for the two units in the circuit. Do not enable Elastic Store if the
attached DCE has an elastic store buffer larger than 32 bits.
Table 4. G.703 Interface Options –Model 7996 (1 of 2)
Framing
Possible Settings: Framed, Unframed
Default Setting: Framed
Specifies whether G.704 framing is used for the G.703 interface.
Line Coding
Possible Settings: AMI, HDB3
Default Setting: HDB3
Specifies the line coding format to be used by the G.703 interface.
Line Framing
Possible Settings: CRC4, noCRC4
Default Setting: noCRC4
Specifies the framing format to be used by the G.703 interface.
Time Slot 16
Possible Settings: Signaling, Data
Default Setting: Signaling
Specifies whether the G.703 interface is used for voice or data.
Table 3. Synchronous Data Port Options –Model 7995 (3 of 3)

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Send (AIS) on Network Failure
Possible Settings: Enable, Disable
Default Setting: Enable
Specifies the action taken on the signal transmitted to the G.703 when a valid signal
cannot be recovered from the network interface (LOS or OOF).
Primary Clock Source
Possible Settings: G.703, Internal
Default Setting: Internal
Specifies from where the unit will derive its timing.
Table 5. System Options (1 of 2)
DSL Mode
Possible Settings: STU-C, STU-R
Default Setting: STU-R
Controls whether the unit is configured as a SHDSL Transceiver Unit –Central Site
(STU-C) or a SHDSL Transceiver Unit –Remote Terminal Site (STU-R).
NOTE: Changing this option will reset the unit.
Test Timeout
Possible Settings: Enable,Disable
Default Setting: Enable
Allows tests to end automatically. The feature should be enabled when the unit is
remotely managed so that control can be regained after a test is accidentally
executed.
Test Duration (min)
Possible Settings: 1 –120
Default Setting: 10
Number of minutes for a test to be active before automatically ending.
G.703 Line Termination
(Model 7996)
Possible Settings: 75 ohms, 120 ohms
Default Setting: 120 ohms
Sets the line impedance for the unit.
Table 4. G.703 Interface Options –Model 7996 (2 of 2)

17
Region Setting
Possible Setting: Annex B (read-only)
For an STU-C, specifies the set of unique, regional SHDSL operations parameters to
be used by the unit. Annex B is for European networks.
Spectrum Management
Possible Settings: Enable, Disable
Default Setting: Disable
For an STU-C, enabling spectrum management limits the DSL speeds on the unit to
meet BT Access Network Spectrum standards.
Country Code
Possible Setting: UK (read-only)
For an STU-C, determines the spectrum management standard to be used (ANFP for
UK) to calculate the speeds allowed on this unit which comply with spectrum
management.
Table 6. Communication Port Options (1 of 3)
Port Use
Possible Settings: Terminal, Net Link
Default Setting: Terminal
Specifies how the communications port is to be used.
Port Type
Possible Settings: Asynchronous, Synchronous
Default Setting: Asynchronous
Determines whether the communication port will be asynchronous or synchronous
when Port Use is set to Net Link.
Data Rate
Possible Settings: 9.6, 14.4, 19.2, 28.8, 38.4, 57.6, 115.2
Default Setting: 9.6
Specifies the communication port baud rate.
Table 5. System Options (2 of 2)

18
Character Length
Possible Settings: 7, 8
Default Setting: 8
Determines the character length of the communication port.
Parity
Possible Settings: None, Odd, Even
Default Setting: None
Specifies the parity of the communication port.
Stop Bits
Possible Settings: 1, 1.5, 2
Default Setting: 1
Specifies the number of stop bits for the communication port.
Ignore Control Leads
Possible Settings: Disable, DTR
Default Setting: Disable
Specifies whether DTR is used.
Login Required
Possible Settings: Enable, Disable
Default Setting: Disable
Specifies whether an ID and password are required to access the asynchronous
terminal interface on the communication port when Port Use is set to Terminal. Login
IDs are created with a password and access level.
Port Access Level
Possible Settings: Administrator, Operator
Default Setting: Administrator
Specifies the highest level of access allowed when accessing an ATI session through
a Telnet session when Port Use is set to Terminal.
Inactivity Timeout
Possible Settings: Enable, Disable
Default Setting: Disable
Provides automatic logoff of a Telnet session when Port Use is set to Terminal.
Table 6. Communication Port Options (2 of 3)

19
Disconnect Time (Minutes)
Possible Settings: 1 –60
Default Setting: 5
Number of minutesof inactivity before the session terminatesautomatically when Port
Use is set to Terminal and Inactivity Timeout is enabled. Timeout is based on no
keyboard activity.
Table 7. Telnet Session Options
Telnet Session
Possible Settings: Enable, Disable
Default Setting: Enable
Specifies if the unit will respond to a Telnet session request from a Telnet client on an
interconnected IP network.
Telnet Login Required
Possible Settings: Enable, Disable
Default Setting: Disable
Specifies whethera user ID and password are required to access to the ATI through a
Telnet session. Login IDs are created with a password and access level.
Session Access Level
Possible Settings: Administrator,Operator
Default Setting: Administrator
The Telnet session access level is interrelated with the access level of the Login ID.
Inactivity Timeout
Possible Settings: Enable, Disable
Default Setting: Disable
Provides automatic logoff of a Telnet session.
Disconnect Time (Minutes)
Possible Settings: 1 –60
Default Setting: 5
Number of minutes of user inactivity before a Telnet session terminates automatically.
Time out is based on no keyboard activity.
Table 6. Communication Port Options (3 of 3)

20
Table 8. Communication Protocol Options
Node IP Address
Possible Settings: 001.000.000.000 –223.255.255.255, Clear
Default Setting: 000.000.000.000
For an STU-C, specifies the Node IP address.
Node Subnet Mask
Possible Settings: 000.000.000.000 –255.255.255.255, Clear
Default Setting: 000.000.000.000
For an STU-C, specifies the Node Subnet Mask.
Default Network Destination
Possible Settings: None, COM, DSL
Default Setting: None
Specifies where the default management network is connected when Port Use is set
to NetLink for the COM port.. For example, if your default network is connected to the
COM port, select COM as the default management network destination.
Communication Port IP Address
Possible Settings: 001.000.000.000 –223.255.255.255, Clear
Default Setting: Clear (000.000.000.000)
Specifies the Communication Port IP Address when Port Use is set to NetLink for the
COM port.
Communication Port Subnet Mask
Possible Settings: 001.000.000.000 –255.255.255.255, Clear
Default Setting: Clear (000.000.000.000)
Specifies the Communication Port Subnet Mask when Port Use is set to NetLink for
the COM port.
Communication Port Link Protocol
Possible Settings: PPP,SLIP
Default Setting: PPP
Specifies the Communication Port link layer protocol when Port Use is set to NetLink
for the COM port.