Cisco ONS 15454 Hardware Installation Manual page 506

System Timing
• 2 derived T1 outputs wire wrap for ANSI applications
• 2 E1 BITS input DIN-1.0/2.3 for ETSI applications
• 2 E1 BITS output DIN-1.0/2.3 for ETSI applications
System Timing
The ONS 15454 M6 for ANSI has the following system 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 ONS 15454 M6 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
AC Power Specifications
The ONS 15454 M6 has these AC power specifications:
• Shelf power consumption: Configuration dependent; 130 W (Fan Tray, LCD, and ECU module).
• Power terminals standard 3-pole AC connector.
• Fuse rating for an AC power supply must not exceed 10 A, 15 A, or 20 A depending on the standard in
The following table lists power specifications of the AC power modules for the ONS 15454 M6 shelf.
Table 46: ONS 15454 M6 AC Power Specifications
AC Power Input Voltage Range
Module
15454-M6-AC 100–120 V AC (US nominal range), 60Hz
200–250 V AC (Europe nominal range), 50Hz
15454-M6-AC2 100–120 V AC (US nominal range), 60Hz
200–250 V AC (Europe nominal range), 50Hz
DC Power Specifications
The following table lists power specifications of the DC power modules for the ONS 15454 M6 shelf.
Cisco ONS 15454 Hardware Installation Guide
476
various countries. For North America, the branch circuit protection must be rated 20 A.
Output Load
Voltage
-48.0 V DC 900 W
-48.0 V DC 900 W
-48.0 V DC 1260
W
-48.0 V DC 1500
W
Hardware Specifications