ADTRAN HTU-C M - Manual
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1
Section 61245001L2-13, Issue 1
61245.001L2-13A
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-C M
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U
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ssing REM
activates
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e
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,
k towards the customer. If the HTU-C M
is
in loopback,
c
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is
in loopback,
c
a
b
p
o
o
l
pressing REM
deactivates
the loopback.
pressing REM
deactivates
the loopback.
Please ensure you are properly grounded before setting any function switches.
HDSL Quick Start Guide
5th Gen HTU-C M, P/N 1245001L2
5th Gen HTU-R, P/N 1245021L1
PRACTICES
Switch Option Settings
(arrows indicate default settings)
HTU-C M
The HTU-C M transfers the local configuration to the HTU-R when circuit synchronization is
achieved. The HTU-R then sets its configuration to match the HTU-C M.
Rotary Switch
Used to select operation of the line build-out equalizer in series with the DSX-1 output.
1
If external line build-out is selected, the signal transmitted by the HTU-C M is a 12V p-p signal. This must be
considered when measuring the signal at the DSX EQ faceplate Bantam jack. The signal may appear hotter
than it should be.
2
Loopback timeout must be selected prior to initiating a loopback.
3
60 and 120 minutes is selectable from the craft interface.
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L
H T U - R
1245021L2
LP1
LP2
DS1
ALM
SF
AMI
LBK
ESF
B8ZS
MON
L
O
C
R
E
M
LBK
TX
RX
(GRN)
(GRN)
(YEL)
(YEL)
HTU-C
1 2 4 5 0 0 1 L 2
TX
RX
LP1
LP2
DS1
ALM
LBK
R
S
2
3
2
B8ZS
FRM
ESF
NIU LB DIS
LBK TIMEOUT DIS
AMI
UFRM
SF
EN
EN
E
Q
DSX-1
LBO
533
399
266
133
0
EXT
Line Build-Out
Rotary Switch
SW1
H
D
S
L
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