Chapter 2, Technical Specifications

Table Of Contents

Technical Specifications

ONS 15216 EDFA1 Optical Specifications

Maximum Input Power

Upgrading to a Larger Number of Wavelengths

ONS 15216 EDFA1 Electrical Specifications

ONS 15216 EDFA1 Mechanical Specifications

ONS 15216 EDFA1 External Features

ONS 15216 Front Panel

ONS 15216 LED Alarm Definitions

Technical Specifications

This chapter discusses the technical specifications of the ONS 15216 EDFA1.

See "Installation" to set up and install the ONS 15216 EDFA1. See "Provisioning and Monitoring" for information about a local serial port or remote connection.

ONS 15216 EDFA1 Optical Specifications

Table 2-1 lists the ONS 15216 optical specifications.

Table 2-1 ONS 15216 Optical Specifications

Requirement

Specifications

Input Signal Wavelength in a vacuum

1530 nm to 1563 nm

Input Power (channel total)

-29 dBm to -6 dBm (total all channels)

See the "Maximum Input Power" section and the "Upgrading to a Larger Number of Wavelengths" section for additional information.

Mode of Operation

Unidirectional (two common fibers: one for transmit and one for receive)

Maximum Output Power

17 dBm

Signal Gain per channel

23 dB (+/- 1.25 dB)

Gain Flatness

< 2 dB (Peak to Valley)

Noise Figure

< 6.0 dB

Pump Wavelength

980 nm

Polarization Mode Dispersion (PMD)

< 0.6 ps

Input/Output Optical Return Loss

> 27 dB

Backward amplified spontaneous emission (ASE) power

< -20 dBm

Polarization Sensitivity

<0.5 dB

Automatic Gain Control (AGC)

The ONS 15216 EDFA1 contains active-gain block with automatic-gain control loop to minimize the effects of output power variations per wavelength when adding/deleting wavelengths on the same DWDM ring.

Maximum Input Power

Caution In the constant-gain mode of operation, the ONS 15216 amplifier is designed to operate up to a maximum input power of -6 dBm. Optical specifications cannot be maintained with an input power greater than -6 dBm. Operating at higher powers causes the pumps to be overdriven. Prolonged periods of operation in this condition can shorten the life time of the ONS 15216 EDFA1.

In this mode, optical attenuators are required to bring total input power to less than -6 dBm.

Upgrading to a Larger Number of Wavelengths

You can ensure a smooth upgrade path from a single channel to the maximum number of channels with a minimum disruption of service if the per-channel power of the single channel is properly set from the start. Set the per-channel power so that at full channel loading the total input power is less than -6 dBm (0.25 mW).

For example, if the maximum number of channels at full loading is 18, then you can calculate the power per channel by dividing .25 mW by 18, which equals .0138 mW. This number (.0138 mW) in logarithmic scale is -18.6 dBm.

Use Table 2-2 to calculate per-channel power as a function of the maximum total number of channels at full loading.

Table 2-2 Maximum Power Per Channel

Full Loading-

Number of Channels

Maximum per Channel Power (mW)

Maximum per Channel Power (dBm)

1

0.2500

-6.0

2

0.1250

-9.0

3

0.0833

-10.8

4

0.0625

-12.0

5

0.0500

-13.0

6

0.0416

-13.8

7

0.0357

-14.5

8

0.0312

-15.1

9

0.0277

-15.6

10

0.0250

-16.0

11

0.0227

-16.4

12

0.0208

-16.8

13

0.0192

-17.2

14

0.0178

-17.5

15

0.0166

-17.8

16

0.0156

-18.1

17

0.0147

-18.3

18

0.0138

-18.6

19

0.0131

-18.8

20

0.0125

-19.0

21

0.0119

-19.3

22

0.0113

-19.5

23

0.0108

-19.7

24

0.0104

-19.8

25

0.0100

-20.0

26

0.0096

-20.2

27

0.0092

-20.4

28

0.0089

-20.5

29

0.0086

-20.7

30

0.0083

-20.8

31

0.0080

-21.0

32

0.0078

-21.1

33

0.0075

-21.2

34

0.0073

-21.4

35

0.0071

-21.5

36

0.0069

-21.6

37

0.0067

-21.7

38

0.0065

-21.8

39

0.0064

-22.0

40

0.0062

-22.1

Contact Cisco's Technical Assistance Center (TAC) with any questions or concerns regarding maximum input power or setting the upgrade path.

ONS 15216 EDFA1 Electrical Specifications

The ONS 15216 EDFA1 uses a power supply that meets the electrical specifications listed in Table 2-3.

Table 2-3 ONS 15216 Electrical Specifications

Requirement

Specifications

Input Voltage

-48 VDC

Maximum Power Consumption

< 25 W @ 650 c End of LIfe

Minimum Supply Voltage

-30 VDC

Maximum Supply Voltage

-62 VDC

Maximum Current

0.52 Amps

.

ONS 15216 EDFA1 Mechanical Specifications

Table 2-4 lists the mechanical specifications for the ONS 15216 EDFA1.

Table 2-4 ONS 15216 EDFA1 Mechanical Specifications

Specification

Description

Dimensions (H x W x D)

1.75" (Height) x 17 3/16" (Width) x 12" (Depth)

Weight

5.45 lbs.

Ambient Operating Temperature

0 to 650 C

Storage Temperature

-40 to 700 C

Humidity Operation

Relative humidities of 5% to 95%, non-condensing. With ambient temperatures above 29 degrees Celsius, the relative humidity may be limited to a specific humidity of 0.024 pounds of water per pound of dry air.

Humidity Storage

Relative humidities of 5% to 95%, non-condensing. With ambient temperatures above 29 degrees Celsius, the relative humidity may be limited to a specific humidity of 0.024 pounds of water per pound of dry air.

Connector Types

SC/UPC bulkhead connectors

ONS 15216 EDFA1 External Features

The ONS 15216 EDFA1 has the following external features:

•Front panel LEDs, graphics, and warning displays

•Brackets for rack mounting (including reversible ears that permit front, mid, and rear mounting)

•Rear and side cooling vents

•Access door for fiber cleaning

•Fiber routing and retaining feature

•Two threaded grounding studs on rear and two threaded grounding holes on front

•Terminal block for power connection

•RJ-45 connector for external alarm connection

•SC/UPC connectors for optical interface

•DB-9 female connector for craft serial interface connection

Figure 2-1 shows a mechanical outline of the external features and dimensions of the ONS 15216 EDFA1.

Figure 2-1 ONS 15216 EDFA1 Side View

Figure 2-2 shows the ONS 15216 EDFA1 top view.

Figure 2-2 ONS 15216 EDFA1 Top View

ONS 15216 Front Panel

Figure 2-3 displays the ONS 15216 EDFA1 front panel in detail. The front panel provides an all-front access (fibers, power, alarm contact, and management interface) that complies with international standards. Refer to Table 2-5 for information about the front panel features.

Figure 2-3 ONS 15216 EDFA1 Front Panel

Table 2-5 describes the ONS 15216 EDFA1 front panel features.

Table 2-5 ONS 15216 Front Panel Features

Feature

Description

Terminal Strip

Terminal strip for supply power to ONS 15216 EDFA1: attach AWG 14 stranded power wires to appropriate terminals

Grounding Threaded Holes

Grounding threaded holes to ground ONS 15216 EDFA1 (#8/32).

Alarm Out

RJ-45 connector used for alarm system connection (see the "Alarm Contact Closures" section for additional information)

RS-232 Serial Port Connection

Serial Port for local or remote (modem) data communication connection (see "Provisioning and Monitoring" for additional information)

Label

Laser warning and designation labels.

Status LEDs

LEDS indicating status of power, fail, loss of signal (see ONS 15216 LED Alarm Definitions section below)

Fiber Input

SC/UPC fiber input port

Fiber Output

SC/UPC fiber output port

Monitor Output

SC/UPC port for fiber that taps off 1% of output signal for monitoring purposes.

Chassis Ground Lugs

Rear panel grounding post to attach chassis ground wire using #8/32 nut

ONS 15216 LED Alarm Definitions

The ONS 15216 EDFA1 front panel has three LEDs:

•POWER LED

The green POWER LED will turn on and off to reflect the following conditions:

–ON: when an internal power supply is within tolerance (the ONS 15216 EDFA1 is powered normally)

–OFF: when an internal power supply is not present or is out of tolerance

In the OFF condition, the first pair of alarm relay contacts in the RJ-45 connector will change from a normally open condition to a closed condition. The LED and alarm will automatically reset when the condition clears (see the "Alarm Contact Closures" section for additional alarm contact closure information).

•FAIL LED

The red FAIL LED will turn on and off to reflect the following conditions:

–ON: when either the pump laser bias or pump laser temperature is out of tolerance. This indicator illuminates when a major internal failure occurs, for example, an overtemperature condition or a failure in the pump laser

–OFF: when either the pump laser bias or the pump laser temperature is in the specified range or no +5 VDC is present

In the ON condition, the second pair of alarm relay contacts in the RJ-45 connector will change from normally open to closed. The LED and alarm will automatically reset when the condition clears (see the "Alarm Contact Closures" section for additional alarm contact closure information).

•LOS LED

The yellow LED will turn on and off to reflect the following conditions:

–ON: when optical-input power to the ONS 15216 EDFA1 is below the loss-of-input threshold (a LOS threshold decision occurs)

–OFF: when optical-input power is within the input threshold

In the ON condition, the third pair of alarm relay contacts in the RJ-45 connector changes from a normally-open condition to a closed condition. The LED and alarm automatically reset when the condition clears (see the "Alarm Contact Closures" section for additional alarm contact closure information).

Requirement	Specifications
Input Signal Wavelength in a vacuum	1530 nm to 1563 nm
Input Power (channel total)	-29 dBm to -6 dBm (total all channels) See the "Maximum Input Power" section and the "Upgrading to a Larger Number of Wavelengths" section for additional information.
Mode of Operation	Unidirectional (two common fibers: one for transmit and one for receive)
Maximum Output Power	17 dBm
Signal Gain per channel	23 dB (+/- 1.25 dB)
Gain Flatness	< 2 dB (Peak to Valley)
Noise Figure	< 6.0 dB
Pump Wavelength	980 nm
Polarization Mode Dispersion (PMD)	< 0.6 ps
Input/Output Optical Return Loss	> 27 dB
Backward amplified spontaneous emission (ASE) power	< -20 dBm
Polarization Sensitivity	<0.5 dB
Automatic Gain Control (AGC)	The ONS 15216 EDFA1 contains active-gain block with automatic-gain control loop to minimize the effects of output power variations per wavelength when adding/deleting wavelengths on the same DWDM ring.

Full Loading- Number of Channels	Maximum per Channel Power (mW)	Maximum per Channel Power (dBm)
1	0.2500	-6.0
2	0.1250	-9.0
3	0.0833	-10.8
4	0.0625	-12.0
5	0.0500	-13.0
6	0.0416	-13.8
7	0.0357	-14.5
8	0.0312	-15.1
9	0.0277	-15.6
10	0.0250	-16.0
11	0.0227	-16.4
12	0.0208	-16.8
13	0.0192	-17.2
14	0.0178	-17.5
15	0.0166	-17.8
16	0.0156	-18.1
17	0.0147	-18.3
18	0.0138	-18.6
19	0.0131	-18.8
20	0.0125	-19.0
21	0.0119	-19.3
22	0.0113	-19.5
23	0.0108	-19.7
24	0.0104	-19.8
25	0.0100	-20.0
26	0.0096	-20.2
27	0.0092	-20.4
28	0.0089	-20.5
29	0.0086	-20.7
30	0.0083	-20.8
31	0.0080	-21.0
32	0.0078	-21.1
33	0.0075	-21.2
34	0.0073	-21.4
35	0.0071	-21.5
36	0.0069	-21.6
37	0.0067	-21.7
38	0.0065	-21.8
39	0.0064	-22.0
40	0.0062	-22.1

Requirement	Specifications
Input Voltage	-48 VDC
Maximum Power Consumption	< 25 W @ 650 c End of LIfe
Minimum Supply Voltage	-30 VDC
Maximum Supply Voltage	-62 VDC
Maximum Current	0.52 Amps

Specification	Description
Dimensions (H x W x D)	1.75" (Height) x 17 3/16" (Width) x 12" (Depth)
Weight	5.45 lbs.
Ambient Operating Temperature	0 to 650 C
Storage Temperature	-40 to 700 C
Humidity Operation	Relative humidities of 5% to 95%, non-condensing. With ambient temperatures above 29 degrees Celsius, the relative humidity may be limited to a specific humidity of 0.024 pounds of water per pound of dry air.
Humidity Storage	Relative humidities of 5% to 95%, non-condensing. With ambient temperatures above 29 degrees Celsius, the relative humidity may be limited to a specific humidity of 0.024 pounds of water per pound of dry air.
Connector Types	SC/UPC bulkhead connectors

Feature	Description
Terminal Strip	Terminal strip for supply power to ONS 15216 EDFA1: attach AWG 14 stranded power wires to appropriate terminals
Grounding Threaded Holes	Grounding threaded holes to ground ONS 15216 EDFA1 (#8/32).
Alarm Out	RJ-45 connector used for alarm system connection (see the "Alarm Contact Closures" section for additional information)
RS-232 Serial Port Connection	Serial Port for local or remote (modem) data communication connection (see "Provisioning and Monitoring" for additional information)
Label	Laser warning and designation labels.
Status LEDs	LEDS indicating status of power, fail, loss of signal (see ONS 15216 LED Alarm Definitions section below)
Fiber Input	SC/UPC fiber input port
Fiber Output	SC/UPC fiber output port
Monitor Output	SC/UPC port for fiber that taps off 1% of output signal for monitoring purposes.
Chassis Ground Lugs	Rear panel grounding post to attach chassis ground wire using #8/32 nut