ADTRAN HDSL2 DDM+ H2TU-C Manual

HDSL2 FRONT PANEL LEDS
DDM+ H2TU-C
DSL
P/N 1223003L2
DSX/DS1
CLEI: T1I3AERA_ _
ALM
1223003L2
ESF/SF
DSL
B8ZS/AMI
DSX
DSX EQ
/DS1
TX
ALM
LBK
ESF
/SF
RX
B8ZS
/AMI
LBK
RS-232 DB-9 CONNECTOR
TX

Used to access performance monitoring data, perform loopbacks, and provision
units via VT100 emulation software (such as HyperTerminal – Private Edition and
ProComm Plus).
RX
DSX MON

There are two types of terminal emulation modes:

Manual Emulation
screen. Print Screen and Log File commands are available in this mode.
R
S

2
Real-Time Emulation
3
2
commands are not available in this mode. Cursor placement and screen
highlighting are enabled.
Use
C

Provision terminal port as follows:

Data Rate:

Asynchronous Data Format:

When using a PC with terminal software, disable any power saving programs.
NOTE: Upon connecting, it may be necessary to press the spacebar three times for the
CARD EDGE PINOUT
Pin
101
102
C A U T I O N !
109
SUBJECT TO ELECTROSTATIC DAMAGE
110
OR DECREASE IN RELIABILITY
HANDLING PRECAUTIONS REQUIRED
114
©2013 ADTRAN, Inc.
115
All Rights Reserved.
DDM+ Transceiver Unit for Central Office
Green DSL sync, no errors currently detected, and signal margin > 2 dB

No DSL sync, errors being detected, or signal margin  2 dB
 Red
Green DSX-1 signal is present and no errors currently being detected

 Red No DSX-1 signal or signal is present with errors
 Off No active alarm present
 Red Loss of DSX-1 signal to the unit
Yellow Loss of DS1 signal to the remote

 Off Unit is provisioned for UNFRAMED data
Green Unit is provisioned for SF data

Yellow Unit is provisioned for ESF data

Green Unit is provisioned for AMI line code

 Yellow Unit is provisioned for B8ZS line code
 Off Unit is not in loopback
 Yellow Unit is in loopback (network and/or customer)
Mode: Press the space bar three times to manually update the
Mode: The default mode. Print Screen and Log File
to toggle between the two terminal emulation modes.
+T
TRL
1.2 to 19.2 kbps
Eight data bits, no parity (none), one stop bit
screen to display properly.
Description
HDSL2 Tip
HDSL2 Ring
DSX-1 RX Tip (Input to H2TU-C)
DSX-1 RX Ring (Input to H2TU-C)
DSX-1 TX Tip (Output from H2TU-C)
DSX-1 TX Ring (Output from H2TU-C)
For more information, refer to the Installation and Maintenance Practice (P/N 61223HDSL2L2-5) available online at www.adtran.com.
HDSL2
Pin Description
117 Alarm (to Alarm Module)
118 –48 VDC Return
119 Frame Ground
217 –48 VDC
218 –48 VDC Return
219 –48 VDC Return
Provisioning Option Option Settings
1. DSX-1 Line Build Out 0–133 feet; 133–266 feet; 266–399
feet; 399–533 feet; 533–655 feet
2. DSX-1/DS1 Line Code B8ZS, AMI
3. DSX-1/DS1 Framing SF, ESF, Unframed, Auto
4. Force Frame Conversion Disabled, Enabled
5. Smartjack Loopback Disabled, Enabled
6. Loopback Time Out None, 120 Min.
7. Latching Loopback Mode T1 (Disabled), FT1 (Enabled)
8. DS1 Tx Level 0 dB, –7.5 dB, –15 dB
9. Span Power Enabled, Disabled
10. Customer Loss Indicator AIS, Loopback, AIS/CI
11. PRM Setting None, SPRM, NPRM, AUTO
12. Loop Atten Alarm Thres 0 (Disabled), 1-99 dB
13. SNR Margin Alarm Thres 0 (Disabled), 1-15 dB
14. Remote Provisioning Disabled, Enabled
15. Shelf Alarm Disabled, Enabled
COMPLIANCE
WARNING: Up to –200 VDC may be present on telecommunications wiring. The
DSX-1 interface is intended for connection to intra-building wiring
only. Ensure chassis ground is properly connected.
This product provides span powering voltage (negative only with respect to ground, 
–190 VDC nominal, GFI protection < 5 mA) and meets all requirements of Bellcore
GR-1089-CORE (Class A2), ANSI T1.418-2002. This product is NRTL listed to the
applicable UL standards.
Code Input
Power Code
Telecommunication Code (TC)
Installation Code (IC)
BANTAM JACKS
Bantam jacks provide both intrusive and non-intrusive test access points into the data
stream.
EQ- intrusive

DSX-1 transmit toward the local loop
TX

DSX-1 receive from the local loop
RX
MON - non-intrusive

Monitors the data stream being received from the network
TX

Monitors the data stream being transmitted to the network
RX
61223003L2-22D
November 2013
Default Settings
0–133 feet
B8ZS
ESF
Disabled
Enabled
120 Minutes
T1 (Disabled)
0 dB
Enabled
AIS/CI
AUTO
30 dB
04 dB
Enabled
Enabled
Output
F C
– X
A –