220/DDM+/3192 H2TU-C
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-1 Framing 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, -7.5 dB, -15 dB 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-1 BANTAM 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-intrusive access 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-C does not have the DSX-1 Bantam Jacks option.
RS-232 DB-9 CONNECTOR
■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-232 port or remotely via ITS codes. This unit cannot be
provisioned from the faceplate four-character display. Select “2” from the ADTRAN HDSL2 Main
Menu Screen to view the Provisioning Screen.
STATUS LED
STATUS ●GREEN Everything functioning normally
✷BLINKING ES, SES, or BPV detected
●YELLOW Loopbacks active
✷BLINKING In-band loopbacks armed
●RED Alarm on the HDSL2 loop, DSX or DS1 interface
✷BLINKING Signal Quality of 0 or No Sync on the HDSL2 loop
FOUR-CHARACTER DISPLAY (FCD) OPERATION
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-1 of the H2TU-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-C and H2TU-R on 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
Left = MODE
Center = OFF
Right = SELECT
