Carrier Access Broadmore 1750 - Manual (Page 75)

Broadmore 1750 - Release 4.6 4-3
Chassis Installation and Grounding
Installation Factors
Installation Factors
The Broadmore 1750 is designed and delivered ready for installation in a standard EIA
19" equipment rack. The mounting brackets can be repositioned for installation in a 23"
rack. To ensure a smooth installation that meets all requirements, the following
installation factors should be considered.
Factor Consideration
Access Clearance Broadmore 1750 requires the following access clearances for
service and maintenance:
Front: 24"
Rear: 4"
Top: 1.75" (Broadmore 1750 units may be stacked without this
clearance.)
Power Source DC Power: –48 VDC at 5 amperes is connected to the rear of the
Broadmore chassis. A second –48 VDC source may be connected
for redundancy.
Optional AC Power Supply Tray: Converts 110/240 VAC (50-60
Hz) to –48 VDC. Rack mounted tray (3.5" high) can hold two power
supplies. Unit comes with one power supply and DC cable. A
second power supply with cable can be added to provide redundant
DC power to the Broadmore. AC and DC power connections are at
the rear of the unit. The DC cable is approximately 3.5 ft. long.
Cable
Management Overall cable lengths can be optimized by equipment placement.
User equipment interface cable connections are made to the
input/output modules at the rear of Broadmore chassis.
ATM interface connections is via fiber cable to the network
interface modules at the front of Broadmore chassis.
Access and cable strain-relief tie-down points are provided.
Chassis front and rear cover removal is required.