Bits Interface; System Timing; System Power - Cisco NCS 2006 Hardware Installation Manual

Hardware Specifications

BITS Interface

The NCS 2002 building integrated timing supply (BITS) interface has these specifications:
• 1 DS-1 BITS inputs wire wrap for ANSI applications
• 1 derived DS-1 outputs wire wrap for ANSI applications
• 1 E1 BITS input DIN-1.0/2.3 for ETSI applications
• 1 E1 BITS output DIN-1.0/2.3 for ETSI applications

System Timing

The NCS 2002 for ANSI has these timing specifications:
• Stratum 3 per Telcordia GR-253-CORE
• Free running accuracy: +/- 4.6 ppm
• Holdover stability: 3.7 x 10-7 per day, including temperature (< 255 slips in first 24 hours)
• Reference: External BITS, line, internal
The NCS 2002 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 NCS 2002 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 NCS 2002 has these DC power specifications:
• Nominal Input Voltage: –48 VDC
• Power consumption: Configuration dependent; 35 W (Fan Tray and LCD)
• Power requirements:
in various countries. For North America, the branch circuit protection must be rated 20A
Cisco NCS 2000 Series Hardware Installation Guide
BITS Interface
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