HRU-402 L ® The HiGain HRU-402 List 4F functions as the remote end of a repeaterless T1 transmission system when connected to a High-bit-rate Digital Subscriber Line (HDSL) HiGain Line Unit (HLU). The HiGain system provides 1.544 Mbps transmission on two unconditioned copper pairs over the full Carrier Service Area (CSA) range.
NSTALLATION Set the RCV LEV and TLOS LB configuration switches located on the front panel. These switches set the DS1 receive line buildout level toward the Customer Interface (CI). Sets the DS1 receive level toward the CI to 0 dB (default setting). Sets the DS1 receive level toward the CI to -15 dB.
NSTALLATION ONTINUED Enable the SCURR switch if you are using the following doublers: HDU-404, HDU-407, HDU-409, HDU-437, HDU-439 List 1 or List 1B, HDU-451 List 4 or 4B. Disable the SCURR switch if you are using an HDU-451 List 1, List 2, List 3, or List 3B.
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HLU attached to the HRU-402, remote provisioning may be available. Copies of this publication or an applicable HLU technical practice can be downloaded from the ADC website at www.adc.com. To order a hard copy, please contact your sales representative. OOPBACK ESTING Initiate loopback testing from the maintenance terminal menus or by using in-band codes.
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