Cisco Systems 15454 SDH A.2 SFP Specifications

A-3
Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
AppendixA Hardware Spec ifications
A.1.8 System Timing
A.1.8 System Timing
The ONS 15454 SDH has the following system timing specifications:
•Stratum 3E, per ITU-T G.813
•Free running accuracy: +/– 4.6 ppm
•Holdover stability: 3.7 exp –7/day, including temperature (< 255 slips in first 24 hours)
•Reference: External building integrate d timing supply (BITS), line, internal
A.1.9 System Power
The ONS 15454 SDH has the following power specifications:
•Input voltage: –48 VDC
•Power consumption: Configuration dependent, 53 W for fan tray; 650 W (maximum draw w/cards)
•Power requirements:
– Nominal: –48 VDC
– Tolerance limits: –40.5 to –57.0 VDC
•Power terminals: 3WK3 Combo-D power cable connector (MIC-A/P and MIC-C/T/P faceplates)
•Fusing: 100 A fuse panel; minimum 30 A fuse per shelf
A.1.10 System Environmental Specifications
The ONS 15454SDH has the following environmental specifications:
•Operating temperature: 0 to +40 degrees Celsius (32 to 104 degrees Fahrenheit)
•Operating humidity: 5 to 95%, noncondensing
A.1.11 Dimensions
The ONS 15454 SDH shelf assembly has the following dimensions:
•Height: 616.5 mm (24.27 in.)
•Width: 535 mm (17 in.) without mounting ears attached
•Depth: 280 mm (11.02 in.)
•Weight: 26 kg empty (57.3 lb)
A.2 SFP Specifications
Table A -1 lists the specifications for the available Small Form-factor Pluggables (SFPs).