ADTRAN HDSL4 239 H4R User Manual
Page 2
PRICING AND AVAILABILITY 800.827.0807
TECH SUPPORT 800.726.8663
RETURN FOR REPAIR 256.963.8722
www.adtran.com
61223445L2-22A
Warranty
: ADTRAN will replace or repair this product within the warranty period if it does not meet its published specifications or fails while in service.
Warranty information can be found online at
FEATURES
TScan
The 239 H4R incorporates the TScan
™
feature, which allows for remote retrieval of circuit diagnostics
and performance of advanced fault location. For more information, refer to the Installation and
Maintenance practice.
Fast Retrain
Fast Retrain is an ADTRAN-proprietary feature that minimizes downtime due to an intermittent
impairment (bad splice, noise burst, etc.).
When such impairments occur after achieving HDSL synchronization, Fast Retrain is invoked to
restore service within 5 to 7 seconds. This short retrain time allows for reduced downtime compared to
the traditional 25 to 30 second retrain duration.
NOTE: For proper functionality, install Fast Retrain capable units on both ends of the circuit. Failure
of a Fast Retrain attempt initiates the traditional (25-30 second) retrain.
Fault Bridging
The Fault Bridging feature minimizes downtime due to intermittent impairments that appear on the
cable pair, for example, from a Ground Fault Interrupt (GFI), short, micro-interruption, bad splice, or
noise burst. This feature allows the DSL transceivers to maintain synchronization during an
interruption, thus avoiding a 25 to 30-second retrain. Depending on the type of impairment,
interruptions up to 200 ms can be bridged.
Bad Splice Detection
The Runtime TScan bad splice detection feature is an ADTRAN-proprietary non-intrusive method for
detection of anomalies (bad splices) in the copper plant. This feature non-intrusively monitors the cable
pair during runtime for the presence of bad splices that can potentially impact service.
Poor cable splices are often undetected by normal testing methods. Often, these splices present no
problem for the data transmission equipment until oxidation with the splice itself causes a rapid
impedance change, which can cause errors, signal margin fluctuation, and retrain of the DSL
transceivers. The splice detection feature is accessed from the Troubleshooting Screen through the craft
access port.
HOUSINGS AND CAPACITIES
Part Number
Description
CLEI Code
Slots
Stub
H4R Capacity
Recommended Slot
Assignments
Material
Above
Ground
Below
Ground
Above
Ground
Below
Ground
1150027L1
239/439 Housing
DDMOABA1MA
4
Air
4
4
All
All
Stainless/Polymer
1150027L2
239/439 Housing
DDMOBBA1MA
4
Gel
4
4
All
All
Stainless/Polymer
1150057L1
Universal Housing
DDMODA01RA
4
Air
4
4
All
All
Stainless Steel
1150057L1
Universal Housing
DDMODA01RA
4
Gel
4
4
All
All
Stainless Steel
1150058L1
Universal Housing
DDMOEE01RA
8
Air
8
8
All
All
Stainless Steel
1150058L2
Universal Housing
DDMOFE01RA
8
Gel
8
8
All
All
Stainless Steel
Manufacturer
Description
Manufacturer’s Part Number
Slots
H4R Capacity
Recommended Slot Assignments
Material
Above
Ground
Below
Ground
Above Ground
Below Ground
ADC
®
Radiator II
SPX-HRXC-30-AG-016GT
16
16
16
All
All
Stainless Steel
ADC
Radiator
SPX-HRXC-30-B1
8
8
8
All
All
Stainless Steel
Circa Telecom
®
HDSL-12A
760005
12
12
12
All
All
Stainless Steel
Circa Telecom
HDSL-12B
760006
12
12
12
All
All
Stainless Steel
Arris
®
/Lucent
®
/AT&T
®
Keptel
®
Inter Link
™
809
RF809A3-XXX or RF809B3-XXX
12
8
N/A
1, 3, 4, 6
7, 9, 10, 12
N/A
Polymer
Arris/Lucent/AT&T
Keptel Inter Link 818/819
RF819A1 or RF819A2
RF819B1 or RF819B2
25
12
16 *
Chamber 1:
1, 4, 7, 8, 11, 14
Chamber 2:
15, 17, 19, 20, 23, 25
Chamber 1:
1, 3, 5, 7, 8, 10, 12, 14
Chamber 2:
15, 16, 18, 19, 20, 22, 24, 25
Polymer
Arris
Keptel Inter Link 819 Family
AT819B1U or AT819A1U
12
8
8
2, 3, 5, 6, 8, 9, 11, 12
2, 3, 5, 6, 8, 9, 11, 12
Polymer
Arris/Lucent/AT&T
Keptel Inter Link 820 Family
RF820AX or RF820BX
2 to 8
Full
Full
All
All
Polymer
Charles Industries
G21 Series
6212050002xx
25
12
N/A
1,2,4,6,7,8,9,11,13,15,18,24
N/A
Stainless Steel
Charles Industries
G21 Series
6212040002xx
12
6
N/A
1,3,4,6,8,11
N/A
Stainless Steel
* For 16 slot use, the ambient air temperature measured 1 foot away and parallel to the housing should not exceed 115°F (46.1°C).
HDSL4 239 H4R Repeater