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Power Code (PC) C C
Telecommunication Code (TC) X X
Installation Code (IC) A –
HDSL2 LOOP SPECIFICATIONS
FOR OPTIMUM OPERATION
First Segment (Between the H2TU-C and H2R)
■ Cable pairs must be non-loaded
■ No single Bridged Tap > 2 kft
■ Total Bridged Tap < 2.5 kft
■ Maximum loop resistance is 850 Ω with 196 kHz Insertion loss < 35 dB
■ Pulse attenuation (LOSS on HDSL Current System Status Screen)<
30 dB
■ SNR Margin of 6 dB or higher, with no fluctuation on either loop
■ Impulse noise < 50 dBrn as measured using a 50 kb filter
■ Wideband Noise < 31 dBrn as measured using a 50 kb filter
■ Internal Clock Accuracy +25 ppm (exceeds Stratum 4)
Second Segment (Between the H2R and H2TU-R)
■ Cable pairs must be non-loaded
■ No single Bridged Tap > 2 kft
■ Total Bridged Tap < 2.5 kft
■ Maximum loop resistance is 740 Ω with 196 kHz Insertion loss < 31.25 dB
■ Pulse attenuation (LOSS on HDSL Current System Status Screen)< 27 dB
■ SNR Margin of 6 dB or higher, with no fluctuation on either loop
■ Impulse noise < 50 dBrn as measured using a 50 kb filter
■ Wideband Noise < 31 dBrn as measured using a 50 kb filter
■ Internal Clock Accuracy +25 ppm (exceeds Stratum 4)
UNIT RESISTANCE
Measurements are with no power applied
H2R 239 = Open circuit
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 faxback copy of ADTRAN’s U.S. and Canada Carrier Networks
Equipment Warranty: (877) 457-5007, Document # 414.
COMPLIANCE
This product complies with UL 1950, third edition. It is intended for
installation in restricted access locations only and in equipment with a Type
“B” or “E” installation code. Ensure chassis ground is properly connected.
H2TU-C VMDF H2R H2TU-R
TURNUP & TROUBLESHOOTING GUIDE
PRICING AND AVAILABILITY 800.827.0807
TECHNICAL SUPPORT 800.726.8663
RETURN FOR REPAIR 256.963.8722
www.adtran.com
61221045L2-22A
ADTRAN 239 REPEATER HOUSINGS
PART # Description H2R Capacity CLEI CODE* Material
1150027L1 4-slot Air Stub TBD* DDMOABA1MA Stainless Steel
1150027L2 4-slot Gel Stub TBD* DDMOBBA1MA Stainless Steel
1152010L3 2-slot Gel Stub TBD* DDMOBAE1RA Valox Plastic
1152010L4 2-slot Air Stub TBD* DDMOAAE1RA Valox Plastic
1150057L1 4-slot Air Stub TBD* DDMODAO1RA Stainless Steel
1150057L2 4-slot Gel Stub TBD* DDMOCAO1RA Stainless Steel
1150058L1 8-slot Air Stub 8 DDMOEEO1RA Stainless Steel
1150058L2 8-slot Gel Stub 8 DDMOFE01RA Stainless Steel
1190816L1 16-slot Air Stub TBD* DDMOES0IRA Stainless Steel
1190816L2 16-slot Gel Stub TBD* DDMOFS0IRA Stainless Steel
H2R 239 DEPLOYMENT IN OTHER HOUSINGS
Company Description H2R Capacity Material
Above Ground Below Ground
819 Style
AT&T, Keptel, ABACON 25-slot TBD* TBD* Polymer
SPC/ADC Radiator II 16-slot Air Stub 16 16 Stainless Steel
SPC/ADC Radiator II 16-slot Gel Stub 16 16 Stainless Steel
AT&T, Keptel 12-slot Air Stub TBD* TBD* Polymer
ABACON 12-slot Air Stub TBD* TBD* Polymer
ABACON 12-slot Gel Stub TBD* TBD* Polymer
ABACON 16-slot Air Stub TBD* TBD* Polymer
ABACON 16-slot Gel Stub TBD* TBD* Polymer
820 Style
Antec/Arris 8-slot Air Stub TBD* TBD* Polymer
*H2R capacity testing is in progress, and results will be avalable in Q4 2001.
AB C D
t-r Voltage t-r Voltage t-r Voltage t-r Voltage
185 185 140 - 160 130 - 155