ADTRAN 3010 HTU-C User Manual

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Total Access 3000/3010

HTU-C

P/N: 1181107L1

CLEI: T1I3AAEA_ _

*61181107L1-22A*

C A U T I O N !

SUBJECT TO ELECTROSTATIC DAMAGE OR DECREASE IN RELIABILITY.

HANDLING PRECAUTIONS REQUIRED.

©2007 ADTRAN, Inc.

All Rights Reserved.

Total Access 3000/3010

 

HTU-C

61181107L1-22A

 

 

0710

DESCRIPTION

The Total Access 3000/3010 High-bitrate Digital Subscriber Line (HDSL) Transceiver Unit for Central Office(HTU-C,P/N 1181107L1) is used to deploy an HDSL T1 circuit using4-wiremetallic facilities. TheHTU-Cworks with multiple list versions of the HDSL Unit Remote end(HTU-R)and HDSL Range Extenders (HRE).

MENU ITEMS ACCESSIBLE VIA THE SCU

Local or remote craft port access to the Total Access 3000 HTU-Ccan be provisioned and tested through the System Controller Unit (SCU). When deployed with SCU 1181015L1 or 1181017L1, theHTU-Ccan be provisioned via the SCU’s faceplate Four Character Display. Refer to theTotal Access 3000 System Controller Unit (SCU) Installation and Maintenance Practice (P/N61181017L1-5)for additional information.

Connect a terminal emulator via the RS-232(DB-9)connector on the faceplate of the SCU. The terminal must be VT100 or compatible and defaulted to 9600 bps, 8 bit, no parity, 1 stop bit. At the LOGON screen, enter the system User Name and Password. Refer to the appropriate SCU Job Aid for the default PASSWORD. Access the desiredHRTU-Cby selecting the ACCESS MODULES from the Total Access Menu, and then select the corresponding slot number.

NOTE: When using a PC with terminal software, disable any power saving programs.

BANTAM JACKS

EQ

This jack provides an intrusive test access point to the data stream as follows: Equipment Jack = To Customer

3.Hold the HTU-Cby the front panel while supporting the bottom edge of the module with the ejector latches opened to engage the chassis edges.

4.Align the module edges to fit in the lower and upper guide grooves for the module.

5.Slide the HTU-Cinto the access module slot. Apply simultaneous thumb pressure at the top and bottom of the module (to the right of the ejector latches) to ensure that the module is firmly seated against the chassis backplane connector. Secure theHTU-Cin place by rotating the ejector latch into the locked position.

After installation is complete, the HTU-Cperforms a series of initialization andself-tests.Once the series ofself-testsare completed, the front panel LEDs reflect the true state of the hardware.

FRONT PANEL LEDS

Label

Status

Description

DSL1/

{

Off

No synchronization of HTU-CandHTU-Ron either loop

DSL2

z

Green

Good signal quality (4 to 9) on Loops 1 and 2

 

 

z

Yellow

Signal quality marginal (1 to 3) on Loops 1 and 2

 

z

Red

Signal quality poor (0) on Loops 1 and 2

 

5

Flashing

Error detected at HTU-CorHTU-R.The color of the LED, when

 

 

 

flashing, indicates loop signal quality.

DSX/DS1

{

Off

Network-sideDSX-1signal not detected or of a format that does not

 

 

 

match provisioning of HDSL circuit

 

z

Green

Network-sideDSX-1signal is present and synchronized with the

 

 

 

HTU-C’sinterface

 

 

Green Flashing

Bipolar Violation (BVPV), frame bit error (SF mode), or CRC error

 

 

 

(ESF mode) detected at DSX-1signal

TX: Replaces the data stream being transmitted to the customer (HDSL Loops)

RX: Accesses the data stream being received from the customer (HDSL Loops)

Equipment jack = To Network

TX: Replaces the data being transmitted to the Central Office

RX: Access the data being received from the Central Office

When the HTU-Cis in MUX mode, the EQ jack can be configured for “To Network” or “To Customer” (default setting) direction via the Test screen. In DSX mode, this option is not available, and the EQ jack configuration will be “Fixed to Customer.”

ALM

{

Off

No alarm condition detected

 

z

Yellow

Remote alarm condition (HTU-C)detected

 

z

Red

Alarm condition detected either locally (HTU-C),or locally and

 

 

 

remotely (HTU-CandHTU-R)

ESF/SF

{

Off

Unit is receiving Unframed data

 

z

Green

Unit is receiving SF data

 

z

Yellow

Unit is receiving ESF data

 

 

 

 

B8ZS/AMI

z

Green

Unit is receiving AMI coding

 

z

Yellow

Unit is receiving B8ZS coding

MON

 

 

 

 

LBK

{

Off

Unit is not in loopback or armed state

This jack provides nonintrusive tap to monitor characteristics of the DSX signal as follows:

 

z

Yellow

Local (HTU-C)loopback is active to the network

TX: Monitors signal being transmitted to the customer (HDSL Loops)

 

 

Yellow Flashing

Loopback arming sequence has been detected; unit is armed (ready for

RX: Accesses the data being received from the customer (HDSL Loops)

 

 

 

loopback) but not in loopback

INSTALLATION AND TURN-UP

After unpacking the unit, inspect it for damage. If damage is noted, file a claim with the carrier and then contact ADTRAN. For more information, refer to the warranty.

NOTE: This unit can be provisioned via the RS-232port or remotely via inband codes.

To avoid confusion with the access module and common module slots, the access module slots start with the fourth slot from the left on the shelf and are numbered “1” through “28” for the Total Access 3000, and “1” through “22” for the Total Access 3010 on the underlying silk-screen.Attempting to install theHTU-Cin any other slots other than those listed can damage the module, backplane or both.

To install the HTU-C,perform the following steps:

1.If present, remove the blank panel from the access module slot on the rear of the Total Access 3000/3010 chassis that is intended for the HTU-C.

2.Pull the ejector latch, located on the bottom of the HTU-Cfront panel, from the closed positions.

HDSL DEPLOYMENT GUIDE

The HDSL system is designed to provide DS1-basedservice over loops as follows:

Cable pairs must be non-loaded

No single bridged tap > 2 kft (0.61 meters)

Impulse noises < 50 dB as measured using a 50 kB filter

Wideband noise < 31 dBrn as measured using a 50 kB filter

Pulse attenuation (LOSS on HDSL current system status screen) < 30 dB

Total bridged tap < 2.5 kft (0.76 meters)

196 kHz insertion loss < 35 dB

Maximum loop resistance is 800 ohms

OPTION SETTINGS

The table on the following page lists options that are available when configuring the HTU-C.However, some options arepre-setand dependent upon the System Controller Unit (SCU) being used. Refer the appropriateSCU Installation and Maintenance Practice when setting options.

For more information, refer to the Installation and Maintenance Practice (P/N 61181107L1-5)available online atwww.adtran.com.

Total Access 3000/3010

HTU-C

PRICING AND AVAILABILITY 800.827.0807 TECH SUPPORT 800.726.8663

RETURN FOR REPAIR 256.963.8722 www.adtran.com

61181107L1-22A

Description

Settings

Default

DSX-1Line Buildout (in feet)

0-133;133-266;266-399;399533;533-655

0-133

Line Code

AMI; B8ZS

B8ZS

Framing

Unframed; SF; ESF; Auto; Forced Conversion

Auto

NIU Loopback

Enabled; Disabled

Enabled

New England 1:6 Loopback

Enabled; Disabled

Disabled

Loopback Timeout

None; 60 Min; 120 Min

None

Customer Loss Response

Loopback; AIS; CDI

AIS

PRM Mode

None; NPRM; SPRM

None

DS1 Tx Level

0; –15dB

0 dB

Span Power

Enabled; Disabled

Enabled

Network Source

DSX; MUX A; MUX B; Auto MUX

DSX

Card Service State

In Service; Out of Service-Unassigned;

Out of Service-Unassigned

 

Out of Service-Maintenance

 

DSX1/DS1 External Alarm

Enabled; Disabled

Disabled

 

 

 

Note: The above provisioning options are based on 7th GenerationHTU-R,1247024L1 or 1247026L1. Option settings for previousHTU-Rs,1246026L4 and/or 1246026L6, that are either not supported by theHTU-R,or are hardware options and cannot be provisioned from theHTU-Cmenu, will display a asterisk (*), and options that follow will be renumbered sequentially.

FRONT PANEL BANTAM JACK TEST ACCESS

The BERT tester should be in Monitor mode for nonintrusive tests and Terminate mode for intrusive tests. Use the Provisioning screen to configure the HTU-Cfor DSX orMUX-fednetwork source. Use the Test screen to configure EQ jacks for Customer or Network direction. (The Network direction is only available when theHTU-Cis MUXfed.) The BERT TX is only used in intrusive tests. Refer to theTotal Access 3000/3010 HTU-C Installation and Maintenance Practice (P/N61181107L1-5)for more detailed information.

Nonintrusive DSX to Customer

Connect HTU-CTX MON to BERT RX

Allows access to DSX signal going to Customer

Nonintrusive DSX from Customer

Connect HTU-CRX MON to BERT RX

Allows access to DSX signal coming from the Customer

Intrusive DSX to Customer

Connect HTU-CTX EX to BERT TX andHTU-CRX EQ to BERT RX

Allows access to signal going to Customer

Nonintrusive MUX to Customer

Connect HTU-CTX MON to BERT RX

Allows access to signal going to Customer

Intrusive MUX to Network

From the Test screen (Option 5 from the HDSL Main Menu), verify Equipment Jack = Network

Connect HTU-CTX to BERT TX andHTU-CRX EQ to BERYT RX

Allows direct access to signal going to and from the Network

Intrusive MUX to Customer

Verify Equipment Jack = To Customer

HTU-CTX EQ to BERT TX andHTU-CRX EQ to BERT RX

Allows direct access to signal going to and from the Customer

TROUBLESHOOTING

Use the Status Screen to view the current condition of the HTU-Cand signal.

Shelf: 1

Slot: 3

Total Access System

 

MM/DD/YY hh:mm:ss

Unacknowledged Alarms: None

 

 

 

 

Unit Number: 1

 

Circuit

ID:

 

 

 

 

Loop #1 <Network> Loop #2

 

 

 

Loop #1 <Customer>Loop #2

---------HTU-C---------

Network

Source ->DSX

---------HTU-R---------

01(01) dB

00(00) dB

<- LOSS CUR(MAX) ->

00(01) dB

01(01) dB

Yes

Yes

<-

Sync

->

Yes

Yes

000/00000

000/00000

<- ES

15M/24H ->

000/00000

000/00000

000/00000

000/00000

<- SES

15M/24H ->

000/00000

000/00000

000/00000

000/00000

<- UAS

15M/24H ->

000/00000

000/00000

Loopbacks Inactive

 

 

 

 

 

Loopbacks Inactive

HTU-CMARGIN (dB)

DSX-1

 

 

 

DS1

HTU-RMARGIN (dB)

 

CUR/MIN/MAX

------------------------------

 

CUR/MIN/MAX

 

 

ESF

<-

Frame ->

ESF

 

 

LP1

20/20/20

B8ZS

<-

Code

->

B8ZS

LP1

20/20/20

LP2

20/20/20

0-133

<-

LBO

->

0 dB

LP2

20/20/20

 

 

N/A

<-

NIU

->

YES

 

 

 

 

00000

<-

BPV

->

00000

 

 

 

 

00000

<-

ES

->

00000

 

 

 

 

00000

<-

SES

->

00000

 

 

 

 

00000

<-

UAS

->

00000

 

 

 

 

None

<- Alarms

->

None

 

 

Enter Command : _

"Z"- zero regs, "X"-

restart MIN/MAX, "?" - Help Screen

The following are indications that a problem can exist with HTU-Cor signal quality:

Is LOSS (pulse attenuation) >30 dB?

Are there any errors counting on the ES, SES or UAS registers?

Is the signal quality fluctuating (graphical meter indicators bouncing up and down)? This would occur when real time mode is active.

If the signal quality is not fluctuating, is it unequal between the loops?

Is the current signal quality indication (uppermost “X” on the meter) more than 1 dB below the maximum?

If these conditions are not present, the circuit should provide quality service. If any of these conditions exist, a cable problem or excessive signal loss is probable, and more testing should be done. These conditions can also reflect intermittent cable faults or excessive noise impairments. If intermittent faults or noise impairment are suspected, select the Performance Monitoring option from the HDSL Main Menu and review the historical performance data on the Performance Monitoring Screen.

Circuit Parameters

Under normal operations, the following conditions apply:

LOSS < 30 dB

Signal margin of 3 dB or higher, no fluctuation and equal on both loops

All HDSL Deployment Guidelines are met

OPERATIONAL SPECIFICATIONS

For a complete list of these specifications, refer to the Total Access 3000/3010 HTU-C Installation and Maintenance Practice (P/N61181107L1-5)for more information.

COMPLIANCE

Refer to the Total Access 3000/3010HTU-CCompliance Notice(P/N 61181107L1-17).

Warranty: ADTRAN will replace or repair this product within the warranty period if it does not meet its published specifications or fails while in service. Warranty information can be found online atwww.adtran.com/warranty.