Cisco ONS 15454 Hardware Installation Manual page 503

Hardware Specifications
The ONS 15454 M2 for ETSI has the following system timing specifications:
• Stratum 3, per ITU-T G.813
• Free running accuracy: +/- 4.6 ppm
• Holdover stability: 3.7 exp -7 per day, including temperature (< 255 slips in first 24 hours)
• Reference: External BITS, line, internal
System Power
The ONS 15454 M2 has these AC power specifications:
• Input Voltage: 100V - 240V AC (+/- 10%)
• Power consumption: Configuration dependent; 35 W (Fan Tray and LCD)
• Power terminals standard 3 pole AC connector
• For an AC power supply, the fuse rating must not exceed 10A, 15A, or 20A depending on the standard
• Total maximum power consumption of 350W with ancillaries, controllers and linecards
The ONS 15454 M2 has these DC power specifications:
• Nominal Input Voltage: –48 VDC
• Power consumption: Configuration dependent; 35 W (Fan Tray and LCD)
• Power requirements:
• Power terminals: DSUB 2 poles for ETSI applications and terminal block double pole for ANSI
• External fuse must not exceed 15A
• Total maximum power consumption of 450W with ancillaries, controllers and linecards
Fan Tray
The following table lists power requirements for the fan-tray assembly.
Table 45: Fan-Tray Assembly Power Requirements
Fan Tray Assembly
15454-M2-FTA
15454-M2-FTA2
System Environmental Specifications
The ONS 15454 M2 for ANSI environment has these specifications:
• Operating temperature: 23 to +131 degrees Farenheit (-5 to +55 degrees Celsius)
• Operating humidity: 5 to 95 percent, noncondensing
The ONS 15454 M2 for ETSI environment has the following specifications:
in various countries. For North America, the branch circuit protection must be rated 20A
• Nominal: –48 VDC
• Input Voltage Range: -40.5 to -57.6 VDC
applications
Watts Amps
35 1
40 1
BTU/Hr
120
135
Cisco ONS 15454 Hardware Installation Guide
System Power
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