Eia Interface (Ansi Only; Bits Interface (Ansi Only; System Timing; System Power - Cisco ONS 15454 DWDM Installation And Operation Manual

Appendix B Hardware Specifications
B.1.8 EIA Interface (ANSI only)
The ONS 15454 electrical interface assembly (EIA) interface has the following specifications:
•
•
•
B.1.9 BITS Interface (ANSI only)
The ONS 15454 building integrated timing supply (BITS) interface has the following specifications:
•
•
•
B.1.10 System Timing
The ONS 15454 ANSI has the following system timing specifications:
•
•
•
•
The ONS 15454 ETSI has the following system timing specifications:
•
•
•
•
B.1.11 System Power
The ONS 15454 ANSI has the following power specifications:
•
•
•
•
April 2006
– Visual: Critical, Major, Minor, Remote
Audible: Critical, Major, Minor, Remote
–
Backplane access: Alarm pin fields
–
Alarm contacts: 0.045 mm, –48 V, 50 mA
–
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
2 DS-1 BITS inputs
2 derived DS-1 outputs
Backplane access: BITS pin field
Stratum 3 per Telcordia GR-253-CORE
Free running accuracy: +/– 4.6 ppm
Holdover stability: 3.7 x 10
Reference: External BITS, line, internal
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 BITS, line, internal
Input power: –48 VDC
Power consumption: 55 W (fan tray only); 650 W (maximum draw with cards)
Power requirements: –40.5 to –57 VDC
Power terminals: #6 Lug
–7
/day, including temperature (< 255 slips in first 24 hours)
Cisco ONS 15454 DWDM Installation and Operations Guide, R4.7
B.1.8 EIA Interface (ANSI only)
B-3