Cisco ONS 15454 DWDM - B.1.8 EIA Interface (ANSI Only)

B-3
Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
December 2006
Appendix B Hardware Specifications
B.1.8 EIA Interface (ANSI only)
• ANSI
– Visual: Critical, Major, Minor, Remote
– Audible: Critical, Major, Minor, Remote
– Backplane access: Alarm pin fields
– Alarm contacts: 0.045 mm, –48 V, 50 mA
B.1.8 EIA Interface (ANSI only)
The ONS 15454 electrical interface assembly (EIA) interface has the following specifications:
• SMB: AMP #415504-3 75-ohm, 4-leg connectors
• BNC: Trompeter #UCBJ224 75-ohm 4 leg connector (King or ITT are also compatible)
• AMP Champ: AMP#552246-1 with #552562-2 bail locks
B.1.9 BITS Interface (ANSI only)
The ONS 15454 building integrated timing supply (BITS) interface has the following specifications:
• 2 DS-1 BITS inputs
• 2 derived DS-1 outputs
• Backplane access: BITS pin field
B.1.10 System Timing
The ONS 15454 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 ETSI 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 per day, including temperature (< 255 slips in first 24 hours)
• Reference: External BITS, line, internal
B.1.11 System Power
The ONS 15454 ANSI has the following power specifications:
• Input power: –48 VDC
• Power consumption: 55 W (fan tray only); 650 W (maximum draw with cards)
• Power requirements: –40.5 to –57 VDC