TURNUP & TROUBLESHOOTING GUIDE
PRICING AND AVAILABILITY 800.827.0807 TECHNICAL SUPPORT 800.726.8663 RETURN FOR REPAIR 256.963.8722 www.adtran.com
HDSL2 LOOP SPECIFICATIONS
FOR OPTIMUM OPERATION
First Segment (Between the H2TU-C and H2R)
■Cable pairs must be
■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
■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
VMDF | H2R |
A | B |
| C | D |
| ||||
185 | 185 |
| 140 - 160 | 130 - 155 |
ADTRAN 239 REPEATER HOUSINGS |
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PART # | Description | H2R Capacity | CLEI CODE* | Material |
1150027L1 | TBD* | DDMOABA1MA | Stainless Steel | |
1150027L2 | TBD* | DDMOBBA1MA | Stainless Steel | |
1152010L3 | TBD* | DDMOBAE1RA | Valox Plastic | |
1152010L4 | TBD* | DDMOAAE1RA | Valox Plastic | |
1150057L1 | TBD* | DDMODAO1RA | Stainless Steel | |
1150057L2 | TBD* | DDMOCAO1RA | Stainless Steel | |
1150058L1 | 8 | DDMOEEO1RA | Stainless Steel | |
1150058L2 | 8 | DDMOFE01RA | Stainless Steel | |
1190816L1 | TBD* | DDMOES0IRA | Stainless Steel | |
1190816L2 | TBD* | DDMOFS0IRA | Stainless Steel |
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)
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.
Code | Input | Output |
Power Code (PC) | C | C |
Telecommunication Code (TC) | X | X |
Installation Code (IC) | A | – |
H2R 239 DEPLOYMENT IN OTHER HOUSINGS
Company | Description | H2R Capacity | Material | |
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| Above Ground | Below Ground |
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819 Style |
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AT&T, Keptel, ABACON | TBD* | TBD* | Polymer | |
SPC/ADC Radiator II | 16 | 16 | Stainless Steel | |
SPC/ADC Radiator II | 16 | 16 | Stainless Steel | |
AT&T, Keptel | TBD* | TBD* | Polymer | |
ABACON | TBD* | TBD* | Polymer | |
ABACON | TBD* | TBD* | Polymer | |
ABACON | TBD* | TBD* | Polymer | |
ABACON | TBD* | TBD* | Polymer | |
820 Style |
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Antec/Arris | TBD* | TBD* | Polymer | |
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*H2R capacity testing is in progress, and results will be avalable in Q4 2001.