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HTU-C / 3192
CLEI: T1L4SNSC_ _
JOBAID
61245004L6-22B
0104
CIRCUIT BOARD ROTARY SWITCH - SW2
Selects the DSX-1 Line Build Out
■ 0..........0 - sets LBO to 0-133 feet
■ 1..........133 - sets LBO to 133-266 feet
■ 2..........266 - sets LBO to 266-399 feet
■ 3..........399 - sets LBO to 399-533 feet
■ 4..........533 - sets LBO to 533-655 feet
Note: Positions 5,6 & 7 are not used.
CIRCUIT BOARD JUMPER - P1
Selects the span powering voltage
LV (–140 Vdc)
■ Used to span power circuit with 0 or 1 HRE
HV (–190 Vdc)
■ Used to span power circuit with multiple HREs
CIRCUIT BOARD JUMPER - P3
Selects the framing of the HDSL circuit
UNF
■ HTU-C operates in unframed mode
AUTO
■ HTU-C auto detects framing
DSX EQ BANTAM JACKS
Provides an intrusive test access point to the data stream
TX
■ Accesses the data stream being received from the local loop
RX
■ Accesses the data stream being transmitted to the local loop
RS-232 DB-9 CONNECTOR
■ Used to access performance monitoring data, perform loopbacks and provision units
via VT100 emulation software such as Hyper Terminal – Private Edition and
ProComm Plus.
■ Provision terminal port as follows:
Data Rate — 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.
WARRANTY
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.
TX
RX
HTU-C
1245004L6
LP1
H
D
S
L
LP2
DSX
ALM
LBK
EXT ALM
LBK
TM OUT
DIS
BZS
T1
DIS
EN
AMI
FT1
EN
R
S
2
3
2
C
L
O
S
AIS
LBK
CDI
HTU-C / 3192
STATUS LEDs
LP1 / LP2 ●● OFF No synchronization between the HTU-C and the next
HDSL unit (HRE or HTU-R) on loop1 / loop2
● RED Poor signal quality on loop1 / loop2
● YELLOW Marginal signal quality loop on loop1 / loop2
● GREEN Good signal quality on loop1 / loop2
✷ FLASHING Error detected at HTU-C or HTU-R
DSX ●● OFF DSX-1 signal not detected
✷ FLASHING BPV, Frame Error (SF), CRC Error (ESF) is detected
● GREEN DSX-1 signal is present and synchronized
ALM ●● OFF No alarm condition detected
● RED Local alarm condition detected (HTU-C), or local and
remote alarm condition detected (HTU-C and HTU-R)
● YELLOW Remote alarm condition detected (HTU-R)
LBK ●● OFF No active loopback
✷ FLASHING Armed but not in loopback
● YELLOW Local loopback is active
FACEPLATE SWITCH - SW1
Selects response of HTU-R upon Customer Loss of Signal
AIS
■ HTU-R generates unframed all 1s toward network upon loss of customer signal
LBK
■ HTU-R generates loopback towards network upon loss of customer signal
CDI
■ HTU-R generates framed all 1s toward network upon loss of customer signal
FACEPLATE SWITCH - SW3
Loopback Timeout
Enabled
■ Loopback timeout is enabled
Disabled
■ Loopback timeout is disabled
Manual Line Code Select
AMI
■ AMI line code is selected
B8ZS
■ B8ZS line code is selected
Latching Loopback
T1
■ Allows only standard T1 testing
FT1
■ Allows for fractional T1 testing
External Alarm
Enabled
■ External alarm is enabled
Disabled
■ External alarm is disabled
COMPLIANCE CODES
This product complies with UL 1459, third
edition. It is intended to be installed in an
enclosure with an Installation Code (IC) of
“B” or “E” and in Restricted Access Locations
only. Input current at maximum load is 1 A,
and maximum output at overcurrent condi-
tion is 160 mA at -188 Vdc.
Code Input Output
Installation Code (IC) A –
Telecommunication Code (TC) – X
Power Code (PC) F C
For complete Installation and Maintenance: (877) 457-5007, Document #300. Please have your fax number available.
C A U T I O N
C A U T I O N
!
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.