ADTRAN 220 DDM, 3192 H2TU-C User Manual

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220/DDM+/3192 H2TU - C

Reference Guide

61221001L6A-30B

 

0011

 

 

1221001L6

D

S

L

dB

MODE SEL

STATUS

 

 

TX

 

 

M

 

HIS

O

 

N

D

 

RX

S

 

 

X

 

TX

 

 

 

 

E

 

 

Q

 

 

RX

R S 2 3 2

C A U T I O N !

SUBJECT TO ELECTROSTATIC DAMAGE OR DECREASE IN RELIABILITY.

HANDLING PRECAUTIONS REQUIRED.

STATUS LED

STATUS

GREEN

Everything functioning normally

 

BLINKING

ES, SES, or BPV detected

 

YELLOW

Loopbacks active

 

BLINKING

In-bandloopbacks armed

 

RED

Alarm on the HDSL2 loop, DSX or DS1 interface

 

BLINKING

Signal Quality of 0 or No Sync on the HDSL2 loop

FOUR-CHARACTERDISPLAY (FCD) OPERATION

 

 

Left = MODE

 

 

Center = OFF

 

 

Right = SELECT

 

 

 

FCD Modes

 

 

 

 

 

Mode

Message

Function

Status

STAT

Displays loop margin, alarms, and general status conditions

Display Off

Blank

Blank after five minutes of no activity

View

VIEW

View current options settings

Loopback

LPBK

Select and execute HDSL2 circuit loopbacks

 

Status/Alarm Display (“STAT”)

Message

Description

MARG xx

HDSL2 loop margin, 0-20

DSL ERR

CRC error detected on HDSL2 Loop

LOC ERR

Frame bit error (SF Mode), Bipolar Violation (BPV), or CRC error (ESF Mode)

 

detected locally at DSX-1of theH2TU-C

REM ERR

Frame bit error (SF Mode), Bipolar Violation (BPV), or CRC error (ESF Mode)

 

detected remotely at DS1 of the H2TU-R

DSL LOS

No synchronization of H2TU-CandH2TU-Ron loop

LOC LOS

DSX signal is absent from the network interface or is of a format which does

 

not match the provisioning of the HDSL2 circuit

REM LOS

DS1 signal is absent from the network interface or is of a format which does

 

not match the provisioning of the HDSL2 circuit

ARM

NIU Loopback is armed

 

 

 

COMPLIANCE CODES

This product is intended for installation in restricted access locations only and in equipment with a Type “B” or “E” installation code.

Input current at maximum load is 0.7 A at

CODE

IN

OUT

–48Vdc. Maximum output at over current

Installation Code (IC)

A

condition is 165 mA at –190Vdc.

 

 

 

Telecommunication Code (TC)

X

 

WARRANTY

Power Code (PC)

F

C

 

 

 

Warranty for Carrier Networks products manufactured by ADTRAN and supplied under Buyer’s order for use in the U.S. is ten (10) years. For a complete copy of ADTRAN’s U.S. Carrier Networks Equipment Warranty: (877) 457-5007,Document #414.

Option Settings Display (“VIEW”)

Message

Description

Settings

Default

LBO

Line Build Out

EXT, 0, 133, 266, 399, 533

*

CODE

Line Code

AMI, B8ZS

B8ZS

FRMG

DSX-1Framing

AUTO, UNF

UNF

NLBK

NIU Loopback

EN, DIS

EN

LBTO

Loopback Timeout

NONE, 1 Hr, 2 Hr, 8 Hr, 24 Hr

1 Hr

CLOS

Customer Loss Response

AIS, LPBK

AIS

PRM

Performance Reporting Messages

NPRM, SPRM, NONE, AUTO

AUTO

TXLV

DS1 Transmit Level

0 dB, -7.5dB,-15dB

0 dB

SPWR

Span Power

EN, DIS

EN

ALMP

Alarm Pattern to Customer

AIS, LOS

AIS

* 220 = EXT, 3192/DDM+ = 0

 

 

 

 

 

Loopback Options Display (“LPBK”)

 

 

 

 

 

 

Select

Loopback State

Loopback Description

HTUC

NET

Network loopback at H2TU-C

 

CST

Customer loopback at H2TU-C

 

NONE

No active loopback

HTUR

BLB

Bidirectional loopback at H2TU-R

 

NET

Network loopback at H2TU-R

 

CST

Customer loopback at H2TU-R

 

NONE

No active loopback

DSX-1BANTAM JACKS

EQ

Provides an intrusive access point to the data stream.

TX - Access the data stream being received from the network. RX - Access the data stream being transmitted to the network.

MON

Provides a non-intrusiveaccess point to the data stream.

TX - Monitors the data stream being received from the network RX - Monitors the data stream being transmitted to the network.

NOTE: The DDM+H2TU-Cdoes not have theDSX-1Bantam Jacks option.

RS-232DB-9CONNECTOR

Used to access performance monitoring data, perform loopbacks and provision units via VT100 emulation applications such as Hyper Terminal – Private Edition, ProComm Plus, and Telnet.

There are two types of terminal emulation modes, Manual and Real-Time.Use“CTRL-T”to toggle between the two modes.

Manual Emulation Mode: Press the space bar 3 times to manually update the screen. Print screen and log file commands are available in this mode.

Real-Time Emulation Mode: The default mode. Print screen and log file commands are not available in this mode. Cursor placement and screen highlighting are enabled.

Provision terminal port as follows:

Data Rate — 1.2 to 19.2 kbps

Asynchronous Data Format — eight data bits, no parity (none), one stop bit

When using a PC with terminal software, be sure to disable any power saving programs.

PROVISIONING NOTES

This unit can be provisioned via the RS-232port or remotely via ITS codes. This unit cannot be provisioned from the faceplatefour-characterdisplay. Select “2” from the ADTRAN HDSL2 Main Menu Screen to view the Provisioning Screen.

HDSL2 TROUBLESHOOTING GUIDE

PRICING AND AVAILABILITY 800.827.0807 TECHNICAL SUPPORT 800.726.8663 RETURN FOR REPAIR 256.963.8722 www.adtran.com 61221001L6-30B

HDSL2 DEPLOYMENT GUIDELINES

Cable pairs must be non-loaded

Total bridged tap length < 2.5 kft

No single bridged tap >2 kft

196 kHz insertion loss < 35 dB

Pulse attenuation (ATTEN on HDSL2 Span Status Screen)< 30 dBMaximum loop resistance is 900

Impulse noise< 50 dBrn as measured using a 50 kb filterWideband noise31 dBrn as measured using a 50 kb filter

TURN UP GUIDELINES

Circuit Parameters Under Normal Operation

Margin6 dBAttenuation< 30 dBInsertion Loss35 dBNo ES, SES, or UAS

If these parameters are met, then the circuit will provide quality service. If not, a cable problem or excessive loss situation is probable. In this case, a more detailed cable analysis is required to insure that

all HDSL2 Loop Specifications are met.

These conditions may also be the result of intermittent cable faults or intermittent noise impairments. If intermittent problems are suspected, utilize the Performance History Screen (Main Menu selection #5) to assist in troubleshooting. An example of a Performance History Screen is illustrated in the bottom righthand corner.

Front Panel Indications Under Normal Operation

STATUS LED will be Green (solid)

NOTE: The circuit must haveDSX-1signal (from Network) and DS1 signal (from Customer) in order for the LED to be Green. If eitherDSX-1or DS1 signal is not present, the LED will be Red.

The four-characterdisplay will flash the current loop margin for the HDSL2 loop. No alarm or error messages will be displayed. After five minutes of no activity, the display will turn completelyOff. It will remainOff until MODE or SELECT is activated or a message other than loop margin is to be displayed.

TROUBLESHOOTING GUIDELINES

Front Panel Indicators

All indicators are Off.

Status LED is Blinking Red

1.Verify that -48Vdc is properly connected.

2.Inspect fuse and verify that it is not blown.

3.Insert the H2TU-Cinto a slot known to be good and verify that the STATUS indicator is lit. If card fails replaceH2TU-C.

Poor signal quality or loss of sync. Use basic troubleshooting procedures to identify cable pair problems.

Status LED is Solid Red

If customer equipment is not installed, initiate an H2TU-Rto Network

 

Loopback and perform BERT test. If this test fails, or the craft interface

 

indicates a loss of sync, then there is a problem with the cable pair that

 

should be resolved through normal troubleshooting procedures.

Status LED is Blinking Green

Errors are being taken on the DSX, DS1, or HDSL2 loop. The craft interface

 

screens will identify the source. BERT test to the appropriate loopbacks

 

should isolate the problem.

Four Character Display

The error messages for this display are defined on page 1 of this guide.

Craft Interface Screens

Detailed Status Screen

Provides instant view of system status (Main Menu selection “3”, Span Status selection “2”)

Alarm History Screen

Provides a record of system alarms (Main Menu selection “8”)

Event History Screen

Provides last 100 events on the system (Main Menu selection “9”)

For complete Installation and Maintenance: (877)457-5007,Document #529, #555, and #556. Please have your fax number available.

Performance History Screens Provide performance data for all points in the system (Main Menu selection “5”)