Cisco Shared Port Adapters/SPA Interface Processors

Cisco 1-Port 10 Gigabit Ethernet (10GE) Tunable WDM-PHY Shared Port Adapter

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The Cisco ® I-Flex design combines shared port adapters (SPAs) and SPA interface processors (SIPs), using an extensible design that enables service prioritization for voice, video, and data services. Enterprise and service provider customers can use the improved slot economics resulting from modular port adapters that are interchangeable across Cisco routing platforms. The I-Flex design maximizes connectivity options and offers superior service intelligence through programmable interface processors, which deliver line-rate performance. I-Flex enhances speed-to-service revenue and provides a rich set of quality-of-service (QoS) features for premium service delivery while effectively reducing the overall cost of ownership. This data sheet contains the specifications for the Cisco 1-Port 10GE Tunable WDM-PHY Interface SPA.

Product Overview

The Cisco 1-Port 10GE Tunable WDM-PHY SPA provides a tunable optical interface that can be used to connect directly to dense wavelength-division multiplexing (DWDM) transport systems, eliminating the need for an optical transponder. The Tunable WDM-PHY SPA provides full 80-channel tunability with 50-GHz spacing across the C band and meets ITU specifications. It supports G.709 framing for robust connectivity and SONET-like operations, administration, maintenance, and provisioning (OAM&P) as well as generic forward error correction (GFEC) for regional applications. For long-haul application support, the high-gain enhanced forward error correction (EFEC) functionality is provided, which can extend optical reach up to 2000 km without optical-electrical regeneration.
The 10GE Tunable WDM-PHY SPA is part of the Cisco IP-over-DWDM solution portfolio. Service providers benefit from IP-over-DWDM integration through faster service provisioning, increased reliability, and simplified network management. Integrated DWDM transponders simplify the network by reducing the number of network elements and also scale at a lower total cost to reduce bandwidth cost. Finally, IP-over-DWDM solutions allow service providers to more cost-effectively use the rich QoS and IP intelligence of Cisco routers in their transport networks.

Figure 1. Cisco 1-Port 10GE Tunable WDM-PHY Interface SPA


Figure 2 shows Tunable WDM-PHY SPA applications.

Figure 2. Tunable WDM-PHY SPA Applications

The 1-Port 10GE Tunable WDM-PHY SPA allows the router to connect directly to an optical ring using either a passive DWDM line system or reconfigurable optical add-drop multiplexers (ROADMs), allowing customer traffic to be carried separately and securely on a single DWDM wavelength. It eliminates the need for bulky and expensive optical transponders. It simplifies network operation by allowing DWDM optical functions and wavelengths to be managed as part of the IP network, reducing the number of network elements and simplifying network management.
Combined with the Cisco ONS 15454 Multiservice Transport Platform (MSTP), the 1-Port 10 Gigabit Ethernet Tunable WDM-PHY SPA provides a powerful solution for bringing IP intelligence to metropolitan and core optical transport networks.
Metro-regional DWDM and long-haul applications are both possible with this product. Long-haul applications of up to 2000 km are supported with the use of the built-in EFEC support.

Features and Benefits

The 1-Port 10GE Tunable WDM-PHY SPA is a primary element in the Cisco IP over DWDM solution, integrating an OTN-compliant (Optical Transport Network) and ITU-compliant interface directly onto the router. Furthermore, as a SPA, the customer also gains all the benefits of Cisco I-Flex modularity: improved slot economics, interface interchangeability across platforms, and investment protection. Table 1 summarizes the features and benefits of this product.

Table 1. Features and Benefits




80-Channel Tunability

• Superior wavelength tunability across C-band
• Superior provisioning flexibility and scalability
• ITU compliant

EFEC Support

• Superior reach; up to 2000 km without regeneration

G.709 OTN Support

• SONET-like management, administration, and performance monitoring

IP-over-DWDM Solution

Transponder Integration

• No need for external transponder shelves
• Less network elements to manage; enhanced reliability
• Reduced operating expenses as well as capital expenditures by reducing space, power, and the cost of the transponder and associated shelves and common card

Management Integration

• Single IP-over-DWDM design tool for network planning
• SONET/SDH-like OAM&P for performance monitoring
• Open architecture for third-party interoperability


• Fully interoperable with Cisco 15454 MSTP
• Designed to be interoperable with third-party DWDM equipment

Product Specifications

Detailed product specifications are listed in Table 2.

Table 2. Product Specifications



Product Compatibility

Cisco 12000 Series Routers

Cisco XR 12000 Series Routers

Port Density

1 x 10 Gigabit Ethernet

Ethernet Features

Encapsulations: ARPA, IEEE 802.2/SAP, IEEE 802.3/SNAP

IEEE 802.3x flow control

802.1q VLAN support, jumbo frames (9188 bytes)

802.1ad QinQ support

IEEE 802.1p tagging

Bridge protocol data unit (BPDU), Cisco Discovery Protocol, and VLAN Trunking Protocol (VTP) filtering

Layer 2 Protocol (BPDU, Cisco Discovery Protocol, and VTP) tunneling

Layer 2 access list (MAC address-based filtering)

Up to 8000 VLANs per SPA and subject to a limit of 4000 VLANs per port for 802.1q

Up to 5000 MAC accounting entries per SPA (source MAC accounting on the ingress and destination MAC accounting on the egress)

Up to 2000 MAC address entries for destination MAC address filtering per SPA, and up to 1000 MAC address filtering entries per port

Per-port byte and packet counters for policy drops; oversubscription drops; cyclic-redundancy-check (CRC) error drops; packet sizes; and unicast, multicast, and broadcast packets

Per-VLAN byte and packet counters for policy drops; oversubscription drops; and unicast, multicast, and broadcast packets

Per-port byte counters for good bytes and dropped bytes

Protocol Support

OTN G.709 compliant, selectable

OTN disabled: no OTN (G.709) framing, line rate of 10.3125 Gbps

OTN enabled: OTN (G.709) framing, line rate of 11.0975 Gbps

Mapping of IEEE 802.3ae 10GBASE-R signal into an overclocked OTU2 running at 11.0975 Gbps

Local (internal) and line (network) loopback

Local (internal) or loop (recovered from network) timing

±100 ppm local clock accuracy over operating temperature

Alarms and Performance Monitoring

Alarm reporting:

• Loss of signal (LOF)
• Loss of OTN frame (LOF)
• Loss of OTN multiframe (LOM)
• OTU alarm indication signal (OTU-AIS)
• OTU backward defect indication (OTU-BDI)
• ODU alarm indication signal (ODU-AIS)
• ODU open connection indication (ODU-OCI)
• ODU locked (ODU-LCK)
• ODU backward defect indication (ODU-BDI)
• ODU payload type identifier mismatch (ODU-PTIM)
• OTU signal fail (OTU_SF_BER)
• OTU signal degrade (OTU_SD_BER)

OTU_SF_BER and OTU_SD_BER alarms are based on monitoring OTU BIP errors with a user-settable threshold crossing.

Error counts: OTU BIP, OTU BEI, ODU BIP, and ODU BEI.

Threshold crossing alerts (TCAs) for OTU BIP errors (SM-TCA) and ODU BIP errors (PM-TCA) with user-settable threshold.

FEC Features

No FEC: ability to turn off error correction for use with non-FEC supporting interfaces (for example, Xenpak, XFP).

GFEC: standard G.975 Reed-Soloman algorithm

EFEC: standard G.975.1 two orthogonally concatenated BCH super FEC code. This FEC scheme contains three parameterizations of the same scheme of two orthogonally interleaved block codes (BCH). The constructed code is decoded iteratively, to achieve the expected performance.

FEC statistics for pre-FEC BER, corrected errors (EC) and uncorrected words (UC).

Optical Features

Line rate 10.3125 Gbps ±100 ppm or 11.0957 Gbps ±100 ppm

Duplex LC (shuttered) faceplate optical connector

Full C-band tunable laser with 50-GHz spacing

Optical power monitoring: laser output power (+/-1.5dB), receiver signal average power (+/- 1.5dB)

Reliability and Availability

Online insertion and removal (OIR) without affecting system traffic

Single SPA software reset

Network Management

Cisco IOS® Software command-line interface (CLI)

Simple Network Management Protocol (SNMP)

CraftWorks Interface (CWI)

Physical Dimensions

Double-height, double-width SPA. Occupies four standard, single-height SPA slots or two double-height SPA slots

Weight: 2.75 lbs (1.25 kg)

Height: 1.6 in. (4.06 cm). Double-height form factor.

Depth: 7.28 in. (18.49 cm)

Width: 13.53 in. (34.36 cm). Double-wide form factor.



Environmental Conditions

Storage temperature: -40 to 70°C (-40 to 15°F)

Operating temperature: 5 to 40°C (41 to 104°F)·

Operating humidity: 5 to 85% RH

Storage humidity: 5 to 95% RH

DWDM Line and Optical Specifications

Table 3 shows the detailed DWDM optical and line specifications for the optical interface.

Table 3. Additional Specifications: DWDM Line Interface


DWDM Line Interface

DWDM Line Interface

Bit Rate

10.3125 ±100 ppm

11.0957 ±100 ppm

Nominal Wavelengths (lambdaTnom)

C-band unit: full tunable from 1529.55 to 1561.84

Spectral Range (lambdaTmin to lambdaTmax)

1530 to 1561 nm

Spectral Width at 20 dB (lambda delta20)

≤25 GHz

Optical Transmitter


Lithium Niobate external modulator

Output Power (PTmin to PTmax)

+3 dBm, +6 dBm

Required Optical Return Loss, Minimum (ORLmin)

27 dB

Extinction Ratio, Minimum (reminx)

>10.5 dB

Laser Safety Class


Optical Receiver


Avalanche photo diode (APD)

Chromatic Dispersion Tolerance (DLRmax)

Up to ±1200 ps/nm (2 dB penalty)1

Minimum BER (BERmin)







Reflectance Between Far-End Tx and Near-End Rx (Maximum)

-27 dB

Receiver Reflectance (Maximum)

-14 dB

Input Wavelength Bandwidth (lambdac_rx)

1290 nm to 1605 nm

Connector Type (Tx/Rx)

LC, duplex (shuttered)

1This is not a specification. Chromatic Dispersion Tolerance is listed as an indication of the maximum chromatic dispersion that the interface can tolerate only in the specified case quoted in Table 4 with 23 dB of OSNR.

Table 4 shows optical performance, with OSNR given in 0.5-nm Res BW.

Table 4. Optical Performance


FEC Type



Input Power Sensitivity

CD Tolerance

23 dB




-8 to -20 dBm C band

±1200 ps/nm

19 dB




-8 to -20 dBm C band

±1000 ps/nm

19 dB




-8 to -22 dBm C band


10 dB




-8 to -18 dBm

±800 ps/nm

8.5 dB




-8 to -18 dBm


19 dB




-8 to -26 dBm

±800 ps/nm

19 dB




-8 to -27 dBm


7 dB




-8 to -20 dBm

±800 ps/nm

5 dB




-8 to -20 dBm


Approvals and Compliance

The Cisco 1-Port 10GE Tunable WDM-PHY SPA is tested and conforms to the international compliance specifications listed in Table 5.

Table 5. Compliance and Agency Approvals1



Safety Standards

UL/CSA/IEC/EN 60950-1

IEC/EN 60825 Laser Safety

AS/NZS 60950

FDA-Code of Federal Regulations Laser Safety


FCC Class A

ICES 003 Class A


CISPR 22 (EN55022) Class A

VCCI Class A


EN300 386: Telecommunications Network Equipment (EMC)

EN55022: Information Technology Equipment (Emissions)

EN55024: Information Technology Equipment (Immunity)

EN50082-1/EN-61000-6-1: Generic Immunity Standard

Network Equipment Building Standards (NEBS)

This product is designed to meet the following requirements (qualification in progress):

SR-3580: NEBS Criteria Levels (Level 3)

GR-1089-CORE: NEBS EMC and Safety

GR-63-CORE: NEBS Physical Protection

Ordering Information

To place an order, contact your local Cisco representative or visit the Ordering page on the Cisco website. Use the ordering information provided in Table 6. To download software, visit the Cisco Software Center.

Table 6. Ordering Information

Product Name

Part Number

Cisco 1-Port 10GE, C-Band Tunable, WDM-PHY Shared Port Adapter (for LAN PHY Applications)


Service and Support

Cisco offers a wide range of services programs to accelerate customer success. These innovative services programs are delivered through a unique combination of people, processes, tools, and partners, resulting in high levels of customer satisfaction. Cisco services help you protect your network investment, optimize network operations, and prepare your network for new applications to extend network intelligence and the power of your business. For more information about Cisco Services, refer to Cisco Technical Support Services or Cisco Advanced Services.

For More Information

For more information about the Cisco SPA/SIP portfolio, visit For details about the Cisco IP-over-WDM solution, visit Alternatively, you may contact your local Cisco account representative.
1For the most up-to-date compliance and approvals information see "Regulatory Compliance and Safety Information" at