ADTRAN 3000 HTU-C User's Manual

ADTRAN 3000 HTU-C User's Manual
Total Access 3000/3010
HTU-C
Total Access 3000/3010
HTU-C
P/N: 1181107L1
CLEI: T1I3AAEA_ _
DESCRIPTION
The Total Access 3000/3010 High-bit rate Digital Subscriber Line (HDSL) Transceiver Unit for
Central Office (HTU-C, P/N 1181107L1) is used to deploy an HDSL T1 circuit using 4-wire
metallic facilities. The HTU-C works 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-C can be provisioned and tested
through the System Controller Unit (SCU). When deployed with SCU 1181015L1 or
1181017L1, the HTU-C can be provisioned via the SCU’s faceplate Four Character Display.
Refer to the Total Access 3000 System Controller Unit (SCU) Installation and Maintenance
Practice (P/N 61181017L1-5) 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 desired HRTU-C by selecting the ACCESS
MODULES from the Total Access Menu, and then select the corresponding slot number.
NOTE:
61181107L1-22A
0710
3. Hold the HTU-C by 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-C into 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 the HTU-C in place by rotating
the ejector latch into the locked position.
After installation is complete, the HTU-C performs a series of initialization and self-tests. Once the
series of self-tests are completed, the front panel LEDs reflect the true state of the hardware.
FRONT PANEL LEDS
Label
Status
DSL1/
DSL2
{
z
z
z
5
Off
Green
Yellow
Red
Flashing
No synchronization of HTU-C and HTU-R on either loop
Good signal quality (4 to 9) on Loops 1 and 2
Signal quality marginal (1 to 3) on Loops 1 and 2
Signal quality poor (0) on Loops 1 and 2
Error detected at HTU-C or HTU-R. The color of the LED, when
flashing, indicates loop signal quality.
DSX/DS1
{
Off
z
Green
2
Green Flashing
Network-side DSX-1 signal not detected or of a format that does not
match provisioning of HDSL circuit
Network-side DSX-1 signal is present and synchronized with the
HTU-C’s interface
Bipolar Violation (BVPV), frame bit error (SF mode), or CRC error
(ESF mode) detected at DSX-1 signal
ALM
{
z
z
Off
Yellow
Red
No alarm condition detected
Remote alarm condition (HTU-C) detected
Alarm condition detected either locally (HTU-C), or locally and
remotely (HTU-C and HTU-R)
ESF/SF
{
z
z
Off
Green
Yellow
Unit is receiving Unframed data
Unit is receiving SF data
Unit is receiving ESF data
B8ZS/AMI
z
z
Green
Yellow
Unit is receiving AMI coding
Unit is receiving B8ZS coding
LBK
{
z
2
Off
Yellow
Yellow Flashing
Unit is not in loopback or armed state
Local (HTU-C) loopback is active to the network
Loopback arming sequence has been detected; unit is armed (ready for
loopback) but not in loopback
When using a PC with terminal software, disable any power saving programs.
BANTAM JACKS
*61181107L1-22A*
EQ
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.
©2007 ADTRAN, Inc.
All Rights Reserved.
This jack provides an intrusive test access point to the data stream as follows:
♦ Equipment Jack = To Customer
♦ 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-C is 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.”
MON
This jack provides nonintrusive tap to monitor characteristics of the DSX signal as follows:
♦ TX: Monitors signal being transmitted to the customer (HDSL Loops)
♦ RX: Accesses the data being received from the customer (HDSL Loops)
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-232 port 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 the HTU-C in 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-C front panel, from the closed
positions.
Description
HDSL DEPLOYMENT GUIDE
The HDSL system is designed to provide DS1-based service 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 are pre-set and dependent upon the System Controller Unit (SCU) being
used. Refer the appropriate SCU Installation and Maintenance Practice when setting options.
For more information, refer to the Installation and Maintenance Practice (P/N 61181107L1-5) available online at www.adtran.com.
PRICING AND AVAILABILITY 800.827.0807
TECH SUPPORT 800.726.8663
RETURN FOR REPAIR 256.963.8722
www.adtran.com
61181107L1-22A
Total Access 3000/3010
HTU-C
Description
Settings
Default
DSX-1 Line Buildout (in feet)
0-133; 133-266; 266-399; 399- 533; 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; –15 dB
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-Maintenance
Out of Service-Unassigned
DSX1/DS1 External Alarm
Enabled; Disabled
Disabled
Note:
7th
The above provisioning options are based on
Generation HTU-R, 1247024L1 or 1247026L1.
Option settings for previous HTU-Rs, 1246026L4 and/or 1246026L6, that are either not supported
by the HTU-R, or are hardware options and cannot be provisioned from the HTU-C menu, 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-C for DSX or MUX-fed network source. Use the Test screen to configure
EQ jacks for Customer or Network direction. (The Network direction is only available when the HTU-C is MUXfed.) The BERT TX is only used in intrusive tests. Refer to the Total Access 3000/3010 HTU-C Installation and
Maintenance Practice (P/N 61181107L1-5) for more detailed information.
♦ Nonintrusive DSX to Customer
♦ Connect HTU-C TX MON to BERT RX
♦ Allows access to DSX signal going to Customer
♦ Nonintrusive DSX from Customer
♦ Connect HTU-C RX MON to BERT RX
♦ Allows access to DSX signal coming from the Customer
♦ Intrusive DSX to Customer
♦ Connect HTU-C TX EX to BERT TX and HTU-C RX EQ to BERT RX
♦ Allows access to signal going to Customer
♦ Nonintrusive MUX to Customer
♦ Connect HTU-C TX 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-C TX to BERT TX and HTU-C RX 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-C TX EQ to BERT TX and HTU-C RX 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-C and 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-C MARGIN (dB)
DSX-1
DS1
HTU-R MARGIN (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-C or 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/N 61181107L1-5) for more information.
COMPLIANCE
Refer to the Total Access 3000/3010 HTU-C Compliance 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 at www.adtran.com/warranty.
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