The optical amplifier module (NCS1K-EDFA) has pre-amplifier and booster amplifier.

The optical amplifier module provides the following functionality.

• Preamplifier (LINE-RX to COM-TX) - Single preamplifier variant, with switchable gain ranges, according to link loss:

  • Range # 1: 0 to 24 dB gain, Tilt control: 24 to 27 gain, with tilt uncontrolled

  • Range # 2: 20 to 34 dB gain, Tilt control: 34 to 37 dB gain, with tilt uncontrolled

  • 23dBm output power @ COM-TX port

• Booster amplifier (COM-RX to LINE-TX) - True variable gain booster amplifier

  • Gain range: 1 to 20. 20 to 25 uncontrolled tilt.

  • 23dBm output power @ LINE-TX port

• ADD/DROP OSC channel supports both 1510nm and 1610nm +/-10nm

• OCM assesses channel presence and Gain regulation and per channel power monitoring.

The protection switching module (NCS1K-PSM) provides the following functionality.

• In TX section:

  • Splits input optical channels to both working and protection lines.

  • Forces the switch in the remote site by opening one of the two line paths (by putting the related VOA in AVS).

• In RX section:

  • Selects the signals from working or protection line. Each line is monitored through a PD.

  • Balances the two line losses by changing the VOA attenuation value at the same time of the switch change of state.

The Optical Transport Section (OTS) controller holds all the optical parameters for the OTS optical interfaces. The optical interface has different capabilities depending on its hardware components such as photodiode, VOA, amplifier, and OCM. Hence, the parameters enabled or disabled on the OTS controller depend on the actual hardware capability on the specific optical interface. Each parameter might refer to RX or TX section. For example, if a photodiode is present, the OTS controller can read the total optical power. When the controller is created, each hardware capability is enabled or disabled.

The Optical Transport Section OCH (OTS OCH) controller represents the OCM device available on the OTS optical interface. This controller is created to have channel granularity over the OTS interface. The OTS OCH controller contains the wavelength information. The controller number starts from 1 and matches with the ITU channel identifier.

Cisco NCS 1001 provides comprehensive management capabilities to support operations, administration, maintenance, and provisioning (OAM&P) capabilities through IOS-XR CLI, SNMP, Syslog, and XML. In addition, iPXE for automated software download and Zero Touch Provisioning (ZTP) for automated configuration download are available for simplified installation. For Machine to Machine configuration and management of NCS 1001, NETCONF, RESTCONF and gRPC transport mechanisms with JSON, XML and GPB encoding are provided. NCS 1001 provides a set of native YANG models as well as the ability to map into any industry standard or customer defined YANG models. For monitoring, NCS1001 provides a streaming telemetry feature that relies on a push mechanism to disseminate user selected PM and status information at user specified frequencies at granular 30 second intervals. This improves monitoring speed and scale compared to traditional pull based mechanisms such as SNMP.

Cisco NCS 1001 supports both transparent and nontransparent signal transport performance monitoring. Performance monitoring of optical parameters on the client and DWDM line interface includes Loss of Signal (LOS) and transmit and receive optical power - both aggregate and per channel. Calculation and accumulation of the performance-monitoring data are supported in 15-minute and 24-hour intervals as per G.7710.