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LTPH-UM-1261-01 1-1
1
Chapter
PRODUCT DESCRIPTION
The HMS-318 L3 is a 22-slot, 3190 mechanics shelf that is capable of being managed locally or remotely. It can be
mounted in a 19-inch rack and is fully NEBS 3 and UL-60950 complaint.
The ADC HiGain
®
Management Shelf (HMS-318 List 3) weighs approximately 17 pounds (7.7 kg). It measures 17.3
in. wide x 5.22 in. high x 12 in. deep (43.9 cm x 13.3 cm x 30.5 cm). These dimensions do not include the mounting
brackets that are factory-installed to the shelf.
The HMS-318 List 3 shelf can be mounted in three different types of rack mount configurations:
• A standard (EIA or WECO) 19-inch (48.3-cm) Central Office (CO) or telco-style equipment rack (using the
mounting rack adapter brackets provided). These brackets can be positioned for either 2- or 5-inch recess.
• A standard (EIA or WECO) 23-inch (58.4-cm) Central Office (CO) or telco-style equipment rack (using the
optional Extender Bracket: EB-52). These brackets can be positioned for either 2- or 5-inch recess.
• A European Telecommunications Standards Institute (ETSI) telco-style rack mounting (using ETSI mounting
adapter brackets and hardware provided).
The HMS-318 List 3 shelf supports:
• 1.544 Mbps (T1) full-duplex transmission over two unconditioned, non-loaded copper loops
• DSX-1 interfaces at the CO and the remote end, with remote provisioning and performance monitoring
• CO power modules (LPS-300C) which provide xDSL span powering to ADC’s LoopStar
™
Wi-Fi
®
Access Point
(AP) solution.
The HMS-318 List 3 shelf is shipped with:
• Adjustable mounting brackets (as described above) that allow the shelf to be positioned in the equipment rack to
match the recess of the existing equipment (either 2- or 5-inch mounting).
• HMS-318 List 3 Shelf Rack Mounting Kit:
– 3 x 5 inch label holder (1)
– Label, HMS-318 (1)
– BNC-T female connector (1) – used with 10 BASE-2 managed systems
– 50-ohm BNC terminator (1) – used with 10BASE-2 managed systems
– #12-24 x .5 inch mounting screws (4).
• ETSI mounting hardware:
– #6-32 x 0.250 inch mounting Phillips head screws w/lock washer (8)
– M6-1.0 x14 mm mounting panhead screws (4)
• Shelf grounding kit:
– #10-32 x .5 inch mounting Hex screw w/washer (1)
– Ring terminal stud, taped 12-10 AWG (1)
– ground jumper, 2-position (1)
– Cable ties (10)
• ETSI mounting brackets (2)
• This instruction manual, HiGain Management Shelf (HMS-318 List 3) User Manual, catalog number
LTPH-UM-1261.
The following optional accessories are available:
• Extender Bracket Kit, 5.25 inches high for mounting a shelf into a 23-inch (58.4-cm) telco-style equipment rack