Cisco ONS 15454 DWDM - A.1.6 Modem Interface

A-3
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Appendix A Hardware Specifications
A.1.6 Modem Interface
A.1.6 Modem Interface
The ONS 15454 modem interface has the following specifications:
• Hardware flow control
• TCC2/TCC2P: EIA/TIA-232 DB-9 type connector
A.1.7 Alarm Interface
The ONS 15454 alarm interface has the following specifications:
• ETSI
– Visual: Critical, Major, Minor, Remote
– Audible: Critical, Major, Minor, Remote
– FMEC access: 62-Pin DB connector on MIC-A/P faceplate
– Alarm inputs: Common 32-VDC output for all alarm-inputs, closed contact limited to 2 mA
– Control outputs: Open contact maximum 60 VDC, closed contact maximum 100 mA
• 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
A.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
A.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
A.1.10 System Timing
The ONS 15454 ANSI has the following system timing specifications:
• Stratum 3 per Telcordia GR-253-CORE