Évaluations - 4, GPA: 3.5
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. . . . . . . . . . . . . . . . . . . . . . . . . A-1 ADTRAN Repair/CAPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . A-1 Repair and Return Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . A-1 61180043L2-5D Total Access Rackmount 6-Amp Power Supply Battery Charger Installation and Maintenance Practice Total Access Rackmount 6-Amp Power Supply Battery Charger Installation and Maintenance Practice s Figure 1. Total Access PS/BC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . 1 Figure 2. PS/BC Mounted On Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 3. Wiring Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Tables Table 1. LED Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Table 2. Power Factor and Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Table 3. PS/BC Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 61180043L2-5D Total Access Rackmount 6-Amp Power Supply Battery Charger GENERAL This practice is an installation and maintenance guide for the ADTRAN® Total Access® Rackmount 6-Amp Power Supply Battery Charger (PS/BC). Figure 1 illustrates the PS/BC (P/N 1180043L2) right and left side panels. FUSEFUSE Figure 1. Total Access PS/BC Features The Total Access PS/BC features include the following: . .54 VDC at 6-amps output for multiple use . Modular connections for two backup battery packs . Modular power output connection . LED status for VAC, VDC, and battery charging . Full battery recharge in less than eight hours . Two PS/BC configuration options available 61180043L2-5D Total Access Rackmount 6-Amp Power Supply Battery Charger Installation and Maintenance Practice Total Access Rackmount 6-Amp Power Supply Battery Charger Installation and Maintenance Practice Fuse protection . Positive ground . Battery Pack mounting hardware included . Completely automatic operation . Multiple protection features . Uninterrupted power output if backup battery connected . Meets NEBS Level 3 (all requirements of GR-63-CORE and GR-1089-CORE) . FCC and UL 60950 compliant Document Review This document contains important pre-installation information. Craft personnel should review the entire document as part of installation planning. DESCRIPTION The PS/BC rectifier is part of the Total Access Rackmount AC Power Supply/Backup Battery System (APS/BBS). The unit is designed to work in conjunction with one or two ADTRAN backup battery packs (P/N 1175044L1). Originally designed for the Total Access 1500 system, the PS/BC can be used in any application using 120 VAC input, and requiring up to .54 VDC, 6-amps output. In the Total Access 1500 configuration, the rectifier performs AC to DC conversion and when used with the dual battery provides up to eight hours of backup power for a fully populated Total Access 1500 bank (96 FXS circuits) with up to 50 percent off-hook circuits at any one time. For general use, the rectifier receives AC power from a standard 120 VAC wall outlet and converts this to .54 VDC, 6-amp output to the designated load plus recharging the single or dual battery, or maintaining battery at peak charge. Each battery has four series connected 12 volt rechargeable cells. Single or Dual Battery Each battery string is rated for 3 amps of current and 7 amp-hours of capacity. Dual batteries are required if the load exceeds these ratings during AC power failure (backup battery mode). PS/BC Mounting Location The PS/BC normally mounts to the associated battery pack. The unit can also mount to a special bracket within a cabinet, or mount external to a cabinet against a wall. 61180043L2-5D Description Description During battery operation a protection circuit disconnects battery from the main output when battery voltage drops below 39 VDC, preventing over discharge. When AC returns, the main output provides regulated .54 VDC, batteries recharge, and the system returns to normal. Refer to .LED Indication.. After the protection circuit initiates, the LEDs remain on (red), continuing to slowly drain the battery. When battery voltage drops to 35 VDC, all load is removed from the battery. If AC power will not be available for an extended period (several days), disconnect the battery to prevent unnecessary discharge. DC Over Voltage Protection The PS/BC has a protection circuit that disables the rectifier to protect the load from a high output voltage caused by rectifier failure. The backup battery or redundant PS/BC supports the load in this instance. The over voltage event can permanently ...