Cisco Smart SFP Network Interface Device Data Sheet
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Product Overview
The Cisco® Smart Small Form-Factor Pluggable (SFP) Network Interface Device (NID) is a state-of-the-art 1310-nm, 1000BASE-LX, Gigabit Ethernet SFP transceiver that reduces the need for additional instrumentation. Smart SFP NID transceivers deploy smoothly inline into existing network devices. They provide remote points of testability, enabling performance-assured service delivery to let operators and service providers increase the value they get out of their existing network infrastructure.
Carrier Ethernet Enabler
Smart SFP NID transceivers enable a more efficient test and troubleshooting process by using RFC 2544 and Y.1564 as well as Y.1731 and RFC 5357 methodologies to support end-to-end performance monitoring in multiservice/multi-class-of-service (multi-CoS) environments. They measure key performance indicators such as network delay, jitter, and packet loss to help guarantee that service-level agreements (SLAs) are met. The probe also supports key service operations and maintenance capabilities, letting service providers easily verify service continuity and perform fault isolation.
Features and Benefits
● The Smart SFP NID transceivers turn network ports into service-assurance tools, enabling Ethernet operation, administration, and maintenance (OAM) for any 1 Gigabit Ethernet network
● They enable consistent test and performance-monitoring capabilities across mobile-backhaul networks without additional instrumentation
● The transceivers reduce complete equipment upgrades and service mean time to repair (MTTR) by simplifying test and troubleshooting procedures
● They are simple-to-use and easy-to-deploy
● The transceivers perform throughput, availability, frame loss, frame delay, and frame delay variation measurements
● Ability to activate test loopback (Layer 2 and Layer 3)
● The Smart SFP transceivers are fully compatible with RFC 2544 and Y.1564 test methodologies
● Inline performance monitoring uses Y.1731 and TWAMP-Light (RFC 5357)
● Ability to enable OAM 802.1ag for fault isolation
Applications
● Service activation and assurance for Ethernet mobile backhaul for third- and fourth-generation
(3G and 4G, respectively) LTE and small cells
● Ethernet business-services SLA verification and assurance
● End-to-end performance monitoring
● Remote test and troubleshooting
Performance-Monitoring Features
● Inline performance monitoring
● Standards-based connectivity fault management (802.1ag) and performance monitoring
(Y.1731, RFC 5357)
● Up-and-down maintenance endpoint (MEP) configuration
● Support for Y.1731 reflector and initiator modes on up to 10 Ethernet virtual connections (EVCs)
● Performance monitoring on up to 10 services
● Support for a TWAMP-Light reflector (RFC 5357) on multiple services and quality of service (QoS) concurrently
● Throughput, frame loss, frame delay, and frame delay variation measurements
Cisco Smart SFP NID transceivers are hot-pluggable with a 3.3V single power supply and a duplex-LC connector that provide a high-speed serial link at up to 1.25-Gbps signaling rates. They are compatible with the INF-8074i (SFP transceiver) standard. These transceivers offer an LC optical receptacle that is compatible with industry-standard LC connectors. The Cisco Smart SFP NID performs Ethernet OAM functions based on industry standards (802.1ag and Y.1731) including test turn-up automation, enhanced customer-premises-equipment (CPE) demarcation, and performance monitoring.
The transceivers consist of an optical assembly housing the transmitter and receiver and an electrical sub-assembly. All are packaged together with a top metal cover and bottom shield.
Cisco Smart SFP NID transceivers also support a digital diagnostic monitoring interface using a two-wire serial ID interface as defined in SFP MSA specification SFF-8472. You can monitor transceiver parameters including temperature, voltage, laser bias current, laser power, and receiver power. Alarms and warnings are provided when monitored parameters exceed predefined threshold values. Cisco Smart SFP NID transceivers also include a loss-of-signal-detect circuit, which provides a time-to-live (TTL) logic high output when it detects an unusable input optical signal level.
SFP Model Dimensions
Figure 1 shows a diagram of the transceivers with their dimensions.
Tables 1, 2, and 3 give regulatory compliance, specifications, and PIN definitions for the transceivers.
Table 1. Regulatory Compliance
| Feature |
Test Method |
Performance |
| Safety |
||
| Product safety |
UL 60950-1 |
UL recognized component for United States and Canada |
| CSA C22.2 No. 60950-1 |
||
| EN 60950-1 |
TUV certificate |
|
| IEC 60950-1 |
CB certificate |
|
| Flame class V-0 |
Passes needle flame test for component flammability verification |
|
| Low Voltage Directive 2006/95/EC |
Certified to harmonized standards listed; Declaration of Conformity issued |
|
| Laser safety |
EN 60825-1 and EN 60825-2 |
TUV certificate |
| IEC 60825-1 |
CB certificate |
|
| U.S. 21 CFR 1040.10 |
FDA/CDRH certified with accession number |
|
| Electromagnetic Compatibility |
||
| Radiated emissions |
EMC Directive 2004/108/EC |
Class B digital device with a minimum -6-dB margin to the limit when tested in a representative host Tested frequency range: 30 MHz to 40 GHz or 5th harmonic (5 times the highest frequency), whichever is less Good system EMI design practice is required to achieve system-class level B margins |
| FCC rules 47 CFR Part 15 |
||
| CISPR 22 |
||
| AS/NZS CISPR22 |
||
| EN 55022 |
||
| ICES-003, Issue 5 |
||
| VCCI regulations |
||
| Immunity |
EMC Directive 2004/108/EC |
Certified to harmonized standards listed; Declaration of Conformity issued |
| CISPR 24 |
||
| EN 55024 |
||
| ESD |
IEC/EN 61000-4-2 |
Exceeds requirements. Withstands discharges of ±8 kV contact, ±15 kV air |
| Radiated immunity |
IEC/EN 61000-4-3 |
Exceeds requirements. Field strength of 10V/m from 10 MHz to 1 GHz. No detectable effect on transmitter/receiver performance between these limits |
| Restriction of Hazardous Substances (RoHS) |
||
| RoHS |
EU Directive 2011/65/EU |
Compliant per the European Parliament Directive 2011/65/ and the Council of 8 June 2011 for restricted use of certain hazardous substances in electrical and electronic equipment (recast) A RoHS Certificate of Compliance (C of C) is available upon request The product may use certain RoHS exemptions |
Table 2. Specifications
| Parameter |
Symbol |
Minimum |
Maximum |
Unit |
| Absolute Maximum Ratings |
||||
| Storage temperature1 |
TS |
-40 |
95 |
°C |
| Relative humidity2 |
RH |
5 |
95 |
% |
| Supply voltage |
VCC |
|
4 |
V |
| Recommended Operating Conditions |
||||
| Controlled operating case temperature |
Top |
-5 |
70 |
°C |
| Uncontrolled operating case temperature |
|
-40 |
85 |
°C |
| Supply voltage |
VCC |
3.135 |
3.465 |
V |
| Transmitter differential input voltage |
VD |
0.5 |
2.4 |
V |
| Transmit disable input voltage - Low3 |
TDLOW |
0.0 |
0.8 |
V |
| Transmit disable input voltage - High3 |
TDHI |
2.0 |
VCC |
V |
| Parameter |
Symbol |
Min. |
Typical |
Max. |
Unit |
|
|||||
| Electrical Characteristics |
|
||||||||||
| Transmitter |
TX fault output - High |
Voh, TTL |
2.0 |
|
VCC + 0.3 |
V |
|
||||
| TX fault output - Low |
Voh, TTL |
0.0 |
|
0.8 |
V |
|
|||||
| Initialization time |
|
|
|
500 |
ms |
|
|||||
| Receiver |
Data output voltage swing |
VDiff |
0.5 |
|
1.2 |
V |
|
||||
| Data output rise and fall times |
tr, tf |
|
|
130 |
ps |
|
|||||
| Loss of signal detect output - High |
Voh, TTL |
2.0 |
|
VCC + 0.3 |
V |
|
|||||
| Loss of signal detect output - Low |
Voh, TTL |
0.0 |
|
0.8 |
V |
|
|||||
| Supply current and voltage |
Voltage |
VCC |
3.135 |
|
3.465 |
V |
|
||||
| Supply current |
LX |
ICC |
|
|
0.505 |
A |
|
||||
| EX/ZX |
0.576 |
|
|||||||||
| Power dissipation |
LX |
Controlled |
Pwr |
|
1.5 |
1.6 |
W |
|
|||
| Uncontrolled |
|
1.6 |
1.7 |
W |
|
||||||
| EX/ZX |
Controlled |
|
1.7 |
1.8 |
W |
|
|||||
| Uncontrolled |
|
1.8 |
1.9 |
W |
|
||||||
| LX Optical Characteristics (Over Specified Top Range, VCC=+3.135 to +3.465V) |
|
||||||||||
| Transmitter |
Average optical output power |
POUT |
-11.0 |
|
-3.0 |
dBm |
|||||
| Optical extinction ratio - GE |
ER |
9.0 |
|
|
dBm |
||||||
| Optical modulation amplitude |
OMA |
|
124 |
|
µW |
||||||
| Center wavelength |
λ |
1270 |
|
1360 |
nm |
||||||
| Spectral width (-20 dB) |
|
|
|
3.0 |
nm |
||||||
| Optical rise/fall time |
tr, tf |
|
|
260 |
ps |
||||||
| Relative intensity noise |
RIN |
|
|
-120 |
dB/Hz |
||||||
| Receiver |
Optical input power (sensitivity) - GE |
PIN |
|
|
-19 |
dBm |
|||||
| Optical input power (saturation) |
PIN |
|
|
1 |
dBm |
||||||
| Operating center wavelength |
λ |
1265 |
|
1600 |
nm |
||||||
| Return loss |
|
12 |
|
|
dB |
||||||
| Loss of signal - de-asserted |
PA |
|
|
-20 |
|
||||||
| Loss of signal - asserted |
PD |
-30 |
|
|
|
||||||
| Loss of signal - hysteresis |
PA-PD |
0.5 |
|
5.0 |
|
||||||
| EX 40 km, 1550 nm |
|||||||||||
| Transmitter |
Average optical output power |
POUT |
-1.0 |
|
3.0 |
dBm |
|||||
| Optical extinction ratio - GE |
ER |
9.0 |
|
|
dBm |
||||||
| Optical center wavelength |
λ |
1500 |
|
1580 |
nm |
||||||
| Spectral width (-20 dB) |
|
|
|
1.0 |
nm |
||||||
| Optical rise/fall time |
tr, tf |
|
|
260 |
ps |
||||||
| Receiver |
Optical input power sensitivity - GE |
PIN |
|
|
-22 |
dBm |
|||||
| Optical input power (saturation) |
PIN |
|
|
1.0 |
dBm |
||||||
| Optical center wavelength |
λ |
1260 |
|
1620 |
nm |
||||||
| Return loss |
|
27 |
|
|
dB |
||||||
| ZX 80 km, 1550 nm |
|||||||||||
| Transmitter |
Average optical output power |
POUT |
0 |
|
5.0 |
dBm |
|||||
| Optical extinction ratio - GE |
ER |
9.0 |
|
|
dBm |
||||||
| Optical center wavelength |
λ |
1500 |
|
1580 |
nm |
||||||
| Spectral width (-20 dB) |
|
|
|
1.0 |
nm |
||||||
| Optical rise/fall time |
tr, tf |
|
|
260 |
ps |
||||||
| Receiver |
Optical input power sensitivity - GE |
PIN |
|
|
-23 |
dBm |
|||||
| Optical input power (saturation) |
PIN |
|
|
1.0 |
dBm |
||||||
| Operating center wavelength |
λ |
1260 |
|
1620 |
nm |
||||||
| Return loss |
|
27 |
|
|
dB |
||||||
Table 3. PIN Definitions
| 1 |
VEET |
Transmit signal ground |
| 2 |
Tx Fault |
Transmit fault indication |
| 3 |
Tx Disable |
Transmit disable |
| 4 |
MOD-DEF2 |
Module definition 2 |
| 5 |
MOD DEF1 |
Module definition 1 |
| 6 |
MOD DEF0 |
Module definition 0 |
| 7 |
Rate Select |
Application select between full or reduced receiver bandwidth (not implemented) |
| 8 |
LOS |
Loss of signal |
| 9 |
VEER |
Receiver signal ground |
| 10 |
VEER |
Receiver signal ground |
| 11 |
VEER |
Receiver signal ground |
| 12 |
RD- |
Received data inverted differential output |
| 13 |
RD+ |
Received data non-inverted differential output |
| 14 |
VEER |
Receiver signal ground |
| 15 |
VCCR |
+3.3 V Receiver power supply |
| 16 |
VCCT |
+3.3 V Transmitter power supply |
| 17 |
VEET |
Transmitter signal ground |
| 18 |
TD+ |
Transmitter data non-inverted differentiated input |
| 19 |
TD- |
Transmitter data inverted differential input |
| 20 |
VEET |
Transmitter signal ground |
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