A-37
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Appendix A      Hardware Specifications
A.7.11    MMU Card Specifications
 –
Width: 1.866 in. (47.4 mm) (The dimension of the finger gasket is not included)
 –
Depth: 9.00 in. (228.6 mm) for a standard DWDM unit
A.7.11 MMU Card Specifications
The MMU card optical specifications are listed in Table A-22.
Note For power specifications, see Table A-2 on page A-6.
Table A-22 MMU Optical Specifications 
Parameter Note Condition Min Typical Max Units
Operating bandwidth All SOP, any 
optical switch state, 
and within whole 
operating 
temperature range, 
connectors 
included.
All paths 1500 — 1605 nm
Insertion loss All SOP, any 
optical switch state, 
and within whole 
operating 
temperature range, 
connectors 
included.
EXP RX => 
COM TX
—— 7.0dB
EXP A RX => 
COM TX
—— 2.3dB
COM RX => 
EXP TX
—— 0.8dB
COM RX => 
EXP A TX
— — 14.8 dB
Wavelength 
dependent losses
All SOP, any 
optical switch state, 
and within whole 
operating 
temperature range, 
connectors 
included.
C-band only — — 0.3 dB
L-band only — — 0.3 dB
C and L bands — — 0.5 dB
Polarization 
dependent loss (PDL)
— C-band only — — 0.2 dB
— L-band only — — 0.2 dB
— C and L bands — — 0.3 dB
Chromatic dispersion All paths –20 — +20 ps/nm
Polarization mode 
dispersion (PMD)
— All paths — — 0.1  ps
Optical power reading 
resolution
— All photodiodes 
(both real and 
virtual)
—— 0.1dB
Optical power reading 
precision
— –0.1 — 0.1 dB