HDSL Quick Start Guide
5th Gen HTU-C M, P/N 1245001L2
5th Gen HTU-R, P/N 1245021L1
PRACTICES
Please ensure you are properly grounded before setting any function switches.
HTU-C
Switch Option Settings
1245001L2
(arrows indicate default settings)
133
266
0
Line Build-Out
Rotary Switch
DSX-1
LBO
399
EXT
HTU-C M
533
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.
AMI
UFRM
SF
EN
EN
B8ZS
FRM
ESF
SW1
NIU LB DIS
LBK TIMEOUT DIS
Rotary Switch
H
D
S
LP1
TX
RX
Used to select operation of the line build-out equalizer in series with the DSX-1 output.
LP2
DS1
ALM
LBK
L
E
Q
Function
Description
EXT
0
133
266
399
533
Selects external line build-out 1
Line length from 0-133 feet of ABAM cable
Line length from 133-266 feet of ABAM cable
Line length from 266-399 feet of ABAM cable
Line length from 399-533 feet of ABAM cable
Line length from 533-655 feet of ABAM cable
R
S
2
3
2
SW1
SW1-1
Loopback Timeout
Enabled
Disabled
With SW1-1 at EN, loopback timeout is enabled (20 minutes). 2, 3
With SW1-1 at DIS, loopback timeout is disabled.
SW1-2
SW1-3
SW1-4
NIU Loopback
Enabled
Disabled
Programs the ADTRAN HDSL system to respond to traditional T1
network interface unit (NIU) loop-up and loop-down codes.
HTU-R
1245021L2
Manual Frame Select Frame selection
SF
ESF
LP1
LP2
DS1
ALM
With SW1-3 at SF, superframe format is selected.
With SW1-3 at ESF, extended superframe format is selected.
T1 Framing
Unframed
Selects the T1 framing mode
With SW1-4 at UFRM, unframed operation is selected. SW1-3
setting is ignored.
SF
ESF
(YEL)
(GRN)
Framed
With SW1-4 at FRM, framed operation is selected.
AMI
B8ZS
(YEL)
(GRN)
LBK
SW1-5
Manual Code Select
AMI
B8ZS
Selects alternate mark inversion or binary 8 zero substitution codes.
With SW1-5 at AMI, alternate mark inversion is selected.
With SW1-5 at B8ZS, binary 8 zero substitution is selected.
R
E
L
O
C
M
LBK
TX
RX
HTU-R
REM
MON
Function
Description
Remote Loopback
If the HTU-C M is not in loopback, pressing REM activates the
loopback towards the customer. If the HTU-C M is in loopback,
pressing REM deactivates the loopback.
LOC
Local Loopback
If the HTU-R is not in loopback, pressing REM activates the
loopback towards the customer. If the HTU-R is in loopback,
pressing REM deactivates the loopback.
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
3
Loopback timeout must be selected prior to initiating a loopback.
60 and 120 minutes is selectable from the craft interface.
61245.001L2-13A
Section 61245001L2-13, Issue 1
1
|
Aastra Telecom Telephone M5008 User Manual
ACCO Brands Laminator H520 User Manual
ACDelco Pressure Washer PN 09301 A User Manual
Altec Lansing Stereo Amplifier 4200A User Manual
Ambient Devices Marine Radio WS 0202 User Manual
Atlona Microscope Magnifier AT DVIRX RSNET User Manual
Axis Communications Digital Camera 215 PTZ E User Manual
Axis Communications DVR 262+ User Manual
Bag Boy Outdoor Cart Express 240 User Manual
Beko Refrigerator TL 685 APW User Manual