Reference Guide
61221001L6A-30B
0011
220/DDM+/3192 H2TU-C
Option Settings Display (“VIEW”)
STATUS LED
Message
Description
Settings
Default
STATUS
G GREEN
Everything functioning normally
LBO
Line Build Out
Line Code
DSX-1 Framing
NIU Loopback
Loopback Timeout
Customer Loss Response
Performance Reporting Messages
DS1 Transmit Level
Span Power
EXT, 0, 133, 266, 399, 533
AMI, B8ZS
AUTO, UNF
EN, DIS
NONE, 1 Hr, 2 Hr, 8 Hr, 24 Hr
AIS, LPBK
NPRM, SPRM, NONE, AUTO
0 dB, -7.5 dB, -15 dB
EN, DIS
*
✷ BLINKING ES, SES, or BPV detected
G YELLOW
CODE
FRMG
NLBK
LBTO
CLOS
PRM
TXLV
SPWR
ALMP
B8ZS
UNF
EN
1 Hr
AIS
AUTO
0 dB
EN
Loopbacks active
✷ BLINKING In-band loopbacks armed
G RED
Alarm on the HDSL2 loop, DSX or DS1 interface
✷ BLINKING Signal Quality of 0 or No Sync on the HDSL2 loop
1221001L6
FOUR-CHARACTER DISPLAY (FCD) OPERATION
D
S
L
Alarm Pattern to Customer
AIS, LOS
AIS
Left = MODE
Center = OFF
* 220 = EXT, 3192/DDM+ = 0
dB
Loopback Options Display (“LPBK”)
Right = SELECT
MODE
SEL
Select
HTUC
Loopback State
NET
CST
NONE
BLB
NET
CST
NONE
Loopback Description
STATUS
Network loopback at H2TU-C
Customer loopback at H2TU-C
No active loopback
Bidirectional loopback at H2TU-R
Network loopback at H2TU-R
Customer loopback at H2TU-R
No active loopback
FCD Modes
TX
M
O
N
Mode
Message Function
HTUR
Status
Display Off
View
STAT
Blank
VIEW
LPBK
Displays loop margin, alarms, and general status conditions
Blank after five minutes of no activity
View current options settings
RX
D
S
X
TX
E
Loopback
Select and execute HDSL2 circuit loopbacks
Q
RX
DSX-1 BANTAM JACKS
Status/Alarm Display (“STAT”)
EQ
Message
MARG xx
DSL ERR
LOC ERR
Description
HDSL2 loop margin, 0-20
CRC error detected on HDSL2 Loop
Frame bit error (SF Mode), Bipolar Violation (BPV), or CRC error (ESF Mode)
detected locally at DSX-1 of the H2TU-C
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Provides an intrusive access point to the data stream.
R
S
2
3
2
TX - Access the data stream being received from the network.
RX - Access the data stream being transmitted to the network.
MON
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Provides a non-intrusive access point to the data stream.
REM ERR
Frame bit error (SF Mode), Bipolar Violation (BPV), or CRC error (ESF Mode)
detected remotely at DS1 of the H2TU-R
TX - Monitors the data stream being received from the network
RX - Monitors the data stream being transmitted to the network.
DSL LOS
LOC LOS
No synchronization of H2TU-C and H2TU-R on loop
DSX signal is absent from the network interface or is of a format which does
not match the provisioning of the HDSL2 circuit
DS1 signal is absent from the network interface or is of a format which does
not match the provisioning of the HDSL2 circuit
NIU Loopback is armed
NOTE: The DDM+ H2TU-C does not have the DSX-1 Bantam Jacks option.
RS-232 DB-9 CONNECTOR
REM LOS
ARM
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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.
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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.
COMPLIANCE CODES
This product is intended for installation in restricted access locations only and in equip-
ment with a Type “B” or “E” installation code.
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.
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Input current at maximum load is 0.7 A at
–48 Vdc. Maximum output at over current
condition is 165 mA at –190 Vdc.
CODE
IN OUT
Installation Code (IC)
Telecommunication Code (TC)
Power Code (PC)
A
–
F
–
X
C
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.
WARRANTY
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C A U T I O N !
Warranty for Carrier Networks products manufactured by ADTRAN and supplied under
Buyer’s order for use in the U.S. is ten (10) years. For a complete copy of ADTRAN’s U.S.
Carrier Networks Equipment Warranty: (877) 457-5007, Document #414.
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.
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