HRU-402 L ® The HiGain HRU List 2 or List 2A Remote Units function as the remote end of a repeaterless T1 transmission system. When used in conjunction with a HDSL (High-bit-rate Digital Subscriber Line) HiGain Line Unit (HLU), the system provides 1.544 Mbps transmission on two unconditioned copper pairs over the full Carrier Service Area (CSA) range.
NSTALLATION For the List 2 only, set the simplex sealing current by doing one of the following: • If the HRU-402 List 2 is to be used with an HDU-451 List 1, 2, 3 or 3B doubler, disable the simplex sealing current by placing the SCURR switch in the up position.
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Refer to the appropriate HLU user manual for details. For more detailed information about the Maintenance Terminal screens, provisioning and loopback mode testing, download the appropriate line unit user manual from the Customer Site portion of the ADC Web page at www.adc.com.
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Table 1. Remote Terminal Main Menu Items Menu Item Function View Span Status Allows viewing of span status from the HLU to the HRU-402 (non-doubler applications) and from any doubler spans (multi-span applications). Set Clock Allows setting of time and date parameters at the HRU. System Settings Allows viewing and setting of all system settings.
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