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PRACTICES
HTU-C
1 2 4 5 0 0 1 L 2
133
266
0
Line Build-Out
HTU-C M
DSX-1
Rotary Switch
399
EXT
LBO
The HTU-C M transfers the local configuration to the HTU-R when circuit synchronization is
533
AMI
B8ZS
achieved. The HTU-R then sets its configuration to match the HTU-C M.
UFRM
FRM
SF
ESF
SW1
EN
NIU LB DIS
EN
Rotary Switch
LBK TIMEOUT DIS
H
LP1
D
Used to select operation of the line build-out equalizer in series with the DSX-1 output.
TX
S
LP2
L
E
Q
DS1
RX
ALM
LBK
R
S
2
3
2
S
W
S
W
S
W
HT U- R
1245021L2
S
W
LP1
LP2
DS1
S
W
ALM
ESF
SF
(GRN)
(YEL)
B8ZS
AMI
(GRN)
(YEL)
S
W
LBK
R
L
E
O
M
C
LBK
TX
H
T
RX
MON
R
E
L
O
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.
61245.001L2-13A
Please ensure you are properly grounded before setting any function switches.
F
u
n
t c
o i
n
E
X
T
0
1
3
3
2
6
6
3
9
9
5
3
3
1
1
1 -
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b
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1
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b
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b
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1
3 -
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a
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S
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F
1
4 -
T
1
F
a r
m
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f n
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d
F
a r
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1
5 -
M
a
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e
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A
M
I
B
8
Z
S
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R -
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o i
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e
m
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p
b
a
k c
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o
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b
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k c
Section 61245001L2-13, Issue 1
Switch Option Settings
(arrows indicate default settings)
D
e
s
c
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S
e
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c
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b
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h t
f
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0
1 -
3
3
e f
t e
L
n i
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g
h t
f
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m
1
3
3
2 -
6
6
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L
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f
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2
6
6
3 -
9
9
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f
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3
9
9
5 -
3
3
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f
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5
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6 -
5
5
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W
h t i
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1
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, N
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t a
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1
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t a
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t a
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t a
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D
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s
c
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f I
h t
e
H
T
U
C -C M is not in loopback
o l
o
p
b
c a
k towards the customer. If the HTU-C M is in loopback,
pressing REM deactivates the loopback.
f I
h t
e
H
T
U
R -
s i
n
t o
n i
o l
o
p
b
c a
o l
o
p
b
c a
k towards the customer. If the HTU-R is in loopback,
pressing REM deactivates the loopback.
HDSL Quick Start Guide
5th Gen HTU-C M, P/N 1245001L2
5th Gen HTU-R, P/N 1245021L1
1
t u
f o
A
B
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Table of Contents
Related Manuals for ADTRAN HTU-C M
Summary of Contents for ADTRAN HTU-C M
- Page 1 (GRN) (YEL) 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.
- Page 2 Emergency Support 7 days/week, 24 hours/day VALID HDSL CABLE LENGTHS When deployment requires the use of two HREs, the HTU-C M can be deployed with two Low Voltage T400 HREs (1244.041L2) and one Low Voltage HTU-R (1245.021L1 or 1245.026L1). BER.
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