Tl1 Craft Interface; Modem Interface; Alarm Interface; Bits Interface - Cisco ONS 15600 Series Reference Manual

Multiservice switching platform (mssp)
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Appendix A
Hardware Specifications
A.1.8 TL1 Craft Interface
The craft interface has the following specifications:
A.1.9 Modem Interface
The modem interface has the following specifications:
A.1.10 Alarm Interface
The alarm interface has the following specifications:
A.1.11 BITS Interface
The building integrated timing supply (BITS) interface has the following specifications:
A.1.12 System Timing
The ONS 15600 has the following system timing specifications:
A.1.13 Database Storage
The ONS 15600 has the following database storage specifications:
10/100BaseT Ethernet
Backplane access: RJ-45 connector
Speed: 9600 bps
Backplane (CAP) access: EIA/TIA-232 DB-9 type connector
Hardware flow control
Backplane (CAP) access: EIA/TIA-232 DB-9 type connector
Visual: Critical, Major, Minor, Remote
Audible: Critical, Major, Minor, Remote
Alarm contacts: 0.045 mm, –48 VDC, 50 mA
Backplane (CAP) access: Alarm pin fields
2 DS-1 BITS inputs
2 derived OC-N outputs
Holdover stability: Stratum 3E per Telcordia GR-253-CORE
Free running accuracy: +/– 4.6 ppm
Reference: External BITS, line, internal
A.1.8 TL1 Craft Interface
Cisco ONS 15600 Reference Manual, R7.0
A-3

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