40-SMR1-C and 40-SMR2-C The Single Module ROADMcards (40-SMR1-C and 40-SMR2-C) integrate the following functional blocks on to a single line card: • Optical preamplifier • Optical booster amplifier • Optical service channel (OSC) filter • 2x1 wavelength cross-connect (WXC) or a 4x1 WXC • Optical channel monitor (OCM) The 40-SMR1-C and 40-SMR2-C cards contain the following subtabs: • Alarms • Conditions • History • Circuits • Provisioning • Inventory • Maintenance • Performance