Cisco Network Convergence System 2000 Series Erbium-Doped Raman Amplifiers Data Sheet
Available Languages
The Cisco® Network Convergence System 2000 Series (NCS 2000 Series) introduces hybrid amplifier line cards combining Raman amplification with erbium doped-fiber amplifiers (EDFAs). Known as erbium doped Raman amplifiers, or EDRAs, these plug-in modules are compact, easy to deploy, and support an ultra-low noise figure that is critical for long-distance, high-bit-rate transmission. Supporting 96 channels in the C-band, they provide the reach and optical performance required to meet the most demanding distance requirements of service provider and enterprise DWDM networks (Figure 1).
Raman amplifiers use the intrinsic properties of silica fiber in such a way that the transmission fibers themselves become a medium for amplification. This approach allows the attenuation of data signals transmitted over the fiber to be mitigated within the fiber itself. An amplifier using this principle is commonly known as a distributed Raman amplifier or simply a Raman amplifier.
The card has four versions:
● EDRA1-26 includes an erbium-doped preamplifier, EDFA1, with a nominal gain of 14 dB. It supports a maximum span of 26 dB on standard single-mode fiber (Figure 2).
● EDRA1-35 includes an erbium-doped preamplifier, EDFA1, with a nominal gain of 21 dB. It supports a maximum span of 35 dB on standard single-mode fiber (Figure 2).
● EDRA2-26 includes an erbium-doped preamplifier, EDFA1, and an erbium-doped booster amplifier, EDFA2, where EDFA1 has a nominal gain of 14 dB. It supports a maximum span of 26-dB on standard single-mode fiber (Figure 3).
● EDRA2-35 includes an erbium-doped preamplifier, EDFA1, and an erbium-doped booster amplifier, EDFA2, where EDFA1 has a nominal gain of 21 dB. It supports a maximum span of 35 dB on standard single-mode fiber (Figure 3).
Each EDRA card can manage (on each port) up to 96 channels, 50-GHz-spaced from 196.1 GHz (1528.77 nm) to 191.35 GHz (1566.72 nm). The optical channel monitor (OCM) ports are used to read the per-channel power level continuously from all optical ports using an external OCM card. The optical time domain reflectometry (OTDR) ports are used to perform OTDR measurements using an external OTDR card.
Features and Benefits
Each EDRA performs the following functions:
● Amplifies the ingress line signal through a true variable gain EDFA (EDFA1) without midstage access
● Amplifies the egress line signal through a true variable gain EDFA (EDFA2) in EDRA-2 amplifiers
● Provides a 1W counter-propagating Raman pump
● Provides Raman pump back-reflection detection and remnant Raman pump detection
● Provides optical service channel (OSC) add/drop and the ability to perform OTDR, chromatic dispersion, and OCM functions using an external card
Each integrated optical amplifier provides the following features:
● Embedded gain-flattening filter
● Constant pump current mode (test mode)
● Constant output power mode
● Constant gain mode
● Nondistorting low-frequency transfer function
● Amplified spontaneous emission (ASE) compensation in constant gain and in constant output power mode
● Fast transient suppression
● Programmable tilt
● Hardware-based optical safety functions through signal-loss detection and alarm at any input port, fast power-down control, and reduced maximum output power in safe power mode
● Hardware limit to support system safety Class 1M at any optical port
The Raman pump provides the following features (Figure 4):
● Total pump power of 1000 mW, consisting of four pumps over four wavelengths
● Raman pump back-reflection detector to detect the amount of Raman pump power back-scattered by the LINE-RX connector and by the transmission fiber
● Remnant Raman pump detection at the end of the counter-pumped span
● Hardware-based optical safety functions through signal-loss detection and alarm at any input port, fast power-down control, and reduced maximum output power in safe power mode
● Hardware limit to support system safety Class 1M at LINE-RX
Other features applicable to EDRA cards follow:
● OCM and OTDR ports for measurements through an external card: A switch is used for OTDR and CD measurements to add external signal on LINE-TX section. The switch is also used on EDRA1-XX for optical safety purposes (automatic laser shutdown of C-band signals on LINE-TX).
● Full monitoring and alarm handling capability of Raman pump, EDFAs, and signal power
● Non-traffic-affecting firmware upgrade
● High reliability, which promotes complete independence between specific direction-facing units with the ability to house units in physically separate shelves
Product Description
The EDRA cards are 2-slot units that can be inserted into slots 2, 4, or 6 of the Cisco NCS 2015 or Cisco NCS 2006 chassis. The unit has 16 input/output fibers among the following connectors:
● Eight LC-UPC/2 connectors
● One high-power connector E-2000 PS PC (0°)
● One MPO 8-fiber connector for OCM, CD, and OTDR functions
EDRA units incorporate faceplate-mounted LEDs to provide a quick visual check of the operational status of the card. Printed on each of the faceplates is an icon (an orange circle), which is mapped to shelf-slot icons that indicate the shelf slot where you can physically install the card. The cards are supported by the integrated Cisco Transport Controller craft manager, which gives you access to system operations, administration, maintenance, and provisioning (OAM&P).
You can use the units in optical line amplification (OLA) nodes (Figure 5), in reconfigurable optical add-drop multiplexer (ROADM) nodes (Figure 6), and in dynamic gain equalizer (DGE) sites in combination with the NCS 2000 16-Port Flex Spectrum ROADM Line Cards (Figure 7).
In OLA nodes, EDRAs can work with other EDRAs, with Cisco ONS 15454 Multiservice Transport Platform (MSTP) amplifiers (product numbers OPT-EDFA-17 and OPT-EDFA-24, or with Cisco ONS 15454 MSTP High-Power Counter-Propagating and Co-Propagating Raman Amplifiers.
Table 1. Amplifiers Compatible with the NCS 2000 16-Port Flex Spectrum ROADM Line Card
| Compatible Amplifier Part Numbers |
| NCS2K-EDRA2-26 |
| NCS2K-EDRA2-35 |
| NCS2K-EDRA1-26 |
| NCS2K-EDRA1-35 |
| 15454- OPT-EDFA-17 |
| 15454- OPT-EDFA-24 |
| 15454-M-RAMAN-CTP |
| 15454-M-RAMAN-COP |
EDRA Product Specifications
Tables 2 and 3 provide optical specifications for the Raman and EDFA sections of the amplifiers, and Table 4 lists physical specifications.
Table 2. Optical Specifications for Raman Section of Amplifier
| Parameter |
Condition |
Minimum |
Typical |
Maximum |
Units |
|
| Pump 1 wavelength |
|
|
1423 |
|
nm |
|
| Pump 2 wavelength |
|
|
1434 |
|
nm |
|
| Pump 3 wavelength |
|
|
1455 |
|
nm |
|
| Pump 4 wavelength |
|
|
1470 |
|
nm |
|
| Pump spectral width |
|
|
± 1 |
± 3 |
nm |
|
| Operating range of Raman pump power |
|
100 |
|
1000 |
mW |
|
| Raman pump unit class at operative power |
With system optical safety single hardware failure included (worst-case fault) |
|
|
1M |
- |
|
Table 3. Optical Specifications for EDFA Section of Amplifier
| Parameter |
Unit Type |
Condition |
Minimum |
Maximum |
Unit |
| Operative input power range |
EDRA1-26 EDRA2-26 |
Full channel load with maximum value of signal output power |
6 |
16 |
dBm |
| Single channel with minimum value of signal output power |
-22 |
-12 |
dBm |
||
| EDRA1-35 EDRA2-35 |
Full channel load with maximum value of signal output power |
-1 |
14 |
dBm |
|
| Single channel with minimum value of signal output power |
-29 |
-14 |
dBm |
||
| EDFA1 class |
|
Single hardware failure included (worst-case fault) |
|
1M |
|
| Signal output power range |
|
Full channel load |
|
23.2 |
dBm |
| Single channel |
|
20.2 |
dBm |
||
| Standard gain range |
EDRA1-26 EDRA2-26 EDRA1-35 EDRA2-35 |
Output gain tilt = 0 dB |
|
23 |
dBm |
|
|
Single channel |
-5 |
|
dBm |
|
| Extended gain range |
EDRA1-26 EDRA2-26 EDRA1-35 EDRA2-35 |
Output gain tilt ≠ 0 |
7 |
14 |
dB |
| Single channel |
9 |
21 |
dBm |
Table 4. EDRA Physical Specifications
| Parameter |
Value |
| Power |
150W maximum |
| Size |
2 slots (H x W x D): 13.1 x, 1.93 x 9.84 in. (33.27 x 4.90 x 24.99 cm) |
| Weight |
3 kg |
| MTBF (predicted) |
149,254 hours (EDRA 1) 140,845 hours (EDRA 2) |
| Management |
|
| Card LEDs
●
Failure (FAIL)
●
Active/standby (ACT/STBY)
●
Signal fail (SF)
|
Red Green/yellow Yellow |
| Operating Environment |
|
| Temperature |
23 to 131°F (-5 to 55°C) |
| Relative humidity |
5 to 85% |
Table 5. EDRA Ordering Information
| Product Name |
Description |
| NCS2K-EDRA1-26C |
21dBm Erbium Doped Raman Amplifier 26dB Span - C-Band |
| NCS2K-EDRA1-35C |
21dBm Erbium Doped Raman Amplifier 35dB Span - C-Band |
| NCS2K-EDRA2-26C |
21dBm Erbium Doped Raman Amplifier + Bst 26dB Span - C-Band |
| NCS2K-EDRA2-35C |
21dBm Erbium Doped Raman Amplifier + Bst 35dB Span - C-Band |
Tables 16 and 17 give regulatory compliance and system requirements for all units included in this data sheet.
Table 6. Regulatory Compliance1
| Countries Supported |
|
| ANSI System |
ETSI System |
|
● Canada
● United States
● Korea
● Japan
● European Union
|
● European Union
● Africa
● CSI
● Australia
● New Zealand
● China
● Korea
● India
● Saudi Arabia
● South America
|
| EMC (Class A) |
|
|
● ICES-003 (2004)
● GR-1089-CORE Issue 6, NEBS EMC and Safety (May 2011)
● 47 FCC part15 (2011)
|
● EN 300 386 Telecommunications Network Equipment (EMC): 2008 (
Note: EMC-1)
● CISPR22 Ed.6 (2008) and CISPR24: Ed.2 (2010)
● EN55024 Ed.2 2010: Immunity levels: see EN61000-4-xx
● EN55022: 2007 Information Technology Equipment (Emissions)(2006) (EMC-2)
|
| Safety |
|
|
● UL/CSA 60950-1, Second Ed 2011
● GR-1089-CORE Issue 6, NEBS EMC and Safety (May 2011)
|
● UL/CSA 60950-1, Second Ed 2011
● IEC 60950-1(2005/12), 2
nd Edition and National Differences as per CB Bulletin 112A
● + Amendment 1: 2009
|
| Laser |
|
|
● UL/CSA 60950-1, Second Ed 2011
● IEC 60950-1(2005/12), 2
nd Edition and National Differences as per CB Bulletin 112A
● + Amendment 1: 2009
● IEC-60825-2 Edition 3.1, 2007/01
|
● CDRH (accession letter and report)
● IEC 60825-1 Ed. 2 2007-03
|
| Environmental |
|
|
● GR-63-CORE Issue 4, NEBS Physical Protection (Apr 2012)
● ETS 300-019-2-1 V2.1.2 (2000-09) (Storage, Class 1.1)
|
● ETS 300-019-2-2 V2.2.1 (2011-11): Transportation, Class 2.3
● ETS 300-019-2-3 V2.2.2 (2003-04): stationary use, Class 3.1E
|
Warranty
The following warranty terms apply to the Cisco NCS 2000 as well as services you may use during the warranty period. Your formal warranty statement appears in the Cisco Information Packet that accompanies your Cisco product.
● Hardware warranty duration: Five years
● Software warranty duration: One year
● Hardware replacement, repair, or refund procedure: Cisco or our service center will use commercially reasonable efforts to ship a replacement part for delivery within 15 working days after receipt of the defective product at a Cisco site. Actual delivery times of replacement products may vary depending on customer location.
Product warranty terms and other information applicable to Cisco products are available at: http://www.cisco.com/go/warranty.
Cisco Services for Migrating Converged IP+Optical Solutions
Services from Cisco and our partners help you get the most value from your investments in Cisco converged IP+Optical solutions, quickly and cost effectively. We can help you design, implement, and validate your solution to speed migration and cutover. Coordinate every step through to interworking. Strengthen your team. And make the most of tomorrow’s opportunities. Learn more at http://www.cisco.com/go/spservices.
Cisco Capital
Financing to Help You Achieve Your Objectives
Cisco Capital can help you acquire the technology you need to achieve your objectives and stay competitive. We can help you reduce CapEx. Accelerate your growth. Optimize your investment dollars and ROI. Cisco Capital financing gives you flexibility in acquiring hardware, software, services, and complementary third-party equipment. And there’s just one predictable payment. Cisco Capital is available in more than 100 countries. Learn more.
Feedback