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C A U T I O N
!
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.
For more information, refer to the Installation and Maintenance Practice (P/N 61181126L2-5) available online at www.adtran.com.
©2007 ADTRAN, Inc.
All Rights Reserved.
Total Access 3000/3010
H2TU-R
P/N: 1181126L2
CLEI: SIIA410F_ _
*61181126L2-22A*
Front Panel Switches
Bantam Jacks
PROVISIONING
The Total Access 3000/3010 shelf must have an Enhanced System Controller Unit
(SCU). All provisioning, performance monitoring, and loopbacks are accessed through
the SCU. The SCU has a faceplate-mounted DB-9 connector that supplies an RS-232
interface for connection to a VT100 or compatible controlling terminal. Set the terminal
communication to 9600 bps, 8 data bits, no parity, and 1 stop bit.
1. At the Total Access 3000/3010 Login screen, enter the account name and password.
2. Select
Access Modules from the Total Access Main Menu.
3. Access the desired H2TU-R by selecting the corresponding slot number.
Once these steps are completed, the HDSL2 Main Menu appears.
HDSL2 DEPLOYMENT GUIDELINES
♦ Cable pairs must be non-loaded
♦ Total bridged tap < 2.5 kft; No single bridged tap > 2 kft
♦ 196 kHz insertion loss < 35 dB
♦ Pulse attenuation (loss on HDSL2 System Status screen) < 30 dB
♦ Maximum loop resistance is 900 ohms¶
♦ Impulse noises < 50 dBrn, as measured using a 50 kb filter
♦ Wideband noise ≤ 31 dBrn, as measured using a 50 kb filter
For further information regarding deployment guidelines and applications, refer to the
Supplemental Deployment Information for HDSL, HDSL2, and HDSL4 (HDSLx)
document (P/N 61221HDSLL1-10).
LBK REM
Controls a customer loopback at the H2TU-C
LBK LOC
Controls a bidirectional loopback at the H2TU-R
EQ
TX, RX
Provides an intrusive access point to the
data stream being transmitted to (TX)
and received from (RX), the H2TU-C.
BRG
TX, RX
The BRG (Bridging) jack provides
nonintrusive access when connected to a
bit-error rate test set that is configured
for bridging mode. In this configuration,
it is possible to observe sychronization,
test patterns, and other functions.
The BRG jack can be used for intrusive
testing toward the customer. In this
configuration, the H2TU-R DS1
interface must be disconnected by using
the metallic-splitting EQ jacks. Then, a
test set configured for terminate mode
can be connected to the BRG jacks,
achieving test access toward the
customer equipment.
INTRODUCTION
The ADTRAN Total Access
®
3000/3010 HDSL2 Transceiver Unit for the Remote
End (H2TU-R, P/N 1181126L2) is a network terminating device that can deploy an
HDSL2 T1 circuit using 2-wire metallic facilities. The H2TU-R fits any single-slot
shelf in the Total Access 3000/3010 chassis (P/N 1181001L1 / P/N 1182003L1). The
H2TU-R can be deployed in circuits that use one HDSL2 Transceiver Unit for the
Central Office (H2TU-C) and one H2R.
INSTALLATION
After unpacking the unit, inspect it for damage. If damage is noted, file a claim with
the carrier and then contact ADTRAN. Refer to the warranty for more information.
Mount the H2TU-R in any single slot of the Total Access 3000/3010 chassis.
Amphenol connectors on the backplane of the Total Access 3000/3010 shelf allow
access to the DS1 and HDSL2 signals. Pins 1 and 33 of each amphenol connector
correspond to slot 1. Pins 2 and 34 of these connectors correspond to slot 2. Pins 3
and 35 correspond to slot 3, and so forth, up to pins 28 and 60 for slot 28.
♦ DS1 (Customer side) – Pair 7 and Pair 8
♦ HDSL2 (Network side) – Pair 2
Front Panel LEDs
Label Status Description
DSL
{
z
z
z
✷
Off
Red
Yellow
Green
Green Flashing
No synchronization between the H2TU-C and the H2TU-R on
the loop
Poor signal quality on the loop (> 10-7 BER)
Marginal signal quality on the loop (. 2 dB margin above 10-7
BER)
Good signal quality on the loop (> 2 dB margin above 10-7
BER)
Detected error on either end of the loop
DS1
{
✷
z
Off
Green Flashing
Green
Customer-side DS1 signal is absent or is in a format that does
not match the provisioning of the HDSL2 circuit.
Detected error on the DS1 interface
Customer-side DS1 signal is present and synchronized
ALM
{
z
z
Off
Red
Yellow
No alarm condition detected
Detected local alarm condition (H2TU-R)
Detected remote alarm condition (H2TU-C)
ESF/
SF
{
z
z
Off
Yellow
Green
DS1 is provisioned for unframed operation
DS1 is provisioned for ESF framing mode
DS1 is provisioned for SF framing mode
B8ZS
{
z
Off
Green
DS1 is provisioned for AMI coding
DS1 is provisioned for B8ZS coding
LBK
{
z
✷
Off
Yellow
Yellow Flashing
Unit is not in loopback or armed state
Active local bidirectional loopback from the H2TU-R toward
the customer and/or the network
Unit is armed but not in active loopback condition
61181126L2-22A
0702
Total Access 3000/3010
H2TU-R
DSX-1
BRG
RX
H2TU-R
DATA
PUMP
DSX-1
T1
R1
DSX-1
T
R
HDSL2
EQ
RX
DSX-1
BRG
TX
EQ
TX