Cisco NCS 1000 32-Channel Mux/Demux Patch Panel Overview

This chapter provides an overview for Cisco NCS 1000 32-Channel Mux/Demux Patch Panel.


Note


In this chapter, "mux/demux panel" refers to the "Cisco NCS 1000 32-Channel Mux/Demux Patch Panel".

Cisco NCS 1000 32-Channel Mux/Demux Patch Panels Overview

The Cisco NCS 1000 32-Channel Mux/Demux patch panels are a pair of passive Athermal Arrayed Waveguide Grating (AAWG) based modules (PIDs NCS1K-MD-32O-C and NCS1K-MD-32E-C). Each mux/demux panel has 32 channels and works as an add/drop unit for the OLT-C and OLT-R-C line cards. Each mux/demux panel allows the multiplexing and demultiplexing of 32 channels with 150-GHz spacing. 75-GHz frequency shift exists between the ODD and EVEN panels. When both panels are used on the same OLT (OLT-C and OLT-R-C) line cards, the combined capacity becomes 64 channels with 75-GHz spacing. Each mux/demux panel provides a wide optical pass-band support. When used as a standalone, each panel acts as an add/drop unit for 32 channels at 140 GBd.

The NCS1K-MD-32O/E-C panel operates in C-band.

The Cisco NCS 1000 Mux/Demux patch panels are fully passive. The units are powered with a USB 2.0 connection in the NCS 1010 chassis. The panels are capable of monitoring channel power, verifying connection, detecting tone, and reporting the inventory data.

Mux/Demux Patch Panel LEDs

Table 1. Feature History

Feature Name

Release Information

Feature Description

Port Status for Mux/Demux Patch Panel

Cisco IOS XR Release 7.9.1

In the mux/demux panel, the optical ports (COM, CH-0…CH-31) LEDs will now indicate port status in the following three colors:

  • Red—Presence of traffic-impacting major and critical alarms.

  • Amber—Presence of minor alarm when performing tone generation or tone detection for connection verification. Tone detection verifies the connection between OLT line cards and the mux/demux panels using a specific probe signal.

  • Green—Patch panel is operating fine and no alarm is raised.

The Mux/Demux Patch Panel unit has 34 LEDs to indicate the system status and the status of the optical ports.

Three color LEDs (green, amber, and red) are present near each optical port (COM and CH-i) to indicate the port status.

Table 2. Status of the Optical Port LEDs

Port LED

Color

Status

COM, CH-0…CH-31

Red

Indicates major and critical alarms such as RX-LOS-P, which could be traffic-impacting. These alarms are raised when there is a loss of signal (LOS) or when the OTS power reading is below the Fail-Low threshold.

Amber

Indicates minor alarms that are raised when initiating tone generation and tone detection for connection verification.

Green

Indicates that the patch panel is operational and has no alarm.

INV

Green

Indicates the active status and attention state of the inventory USB that is connected to the OLT line card.

Port Label Descriptions

Each mux/demux patch panel is equipped with 34-port LC-duplex connectors.

Table 3. Mux/Demux Patch Panels Port Labels

Port Labels

Connector Type

Connector Label

Operating Frequency Range [THz (nm)]

Note

COM-RX

COM-TX

LC

COM

TX RX

196.175–191.15 (1528.2–1568.4)

MON-RX

MON-TX

LC

MON

TX RX

196.175–191.15 (1528.2–1568.4)

Both are output ports. Replica of COM-RX/TX signals ~20dB attenuated.

CH-i TX/RX

[i=0–31]

LC

<ch_number>

<frequency>

TX RX

For more information on ODD and EVEN channels, see Channel Wavelength Allocation

INV

USB Type A receptacle connector

INV

USB inventory port

Channel Wavelength Allocation

The following table describes the C-band channel wavelength plan for the odd and even patch panels.

Table 4. C-Band Channel Wavelength Plan

Channel Label

NCS1K-MD-32O-C

NCS1K-MD-32E-C

Frequency (THz)

Wavelength (nm)

Frequency (THz)

Wavelength (nm)

0

196.100

1528.77

196.025

1529.36

1

195.950

1529.94

195.875

1530.53

2

195.800

1531.12

195.725

1531.70

3

195.650

1532.29

195.575

1532.88

4

195.500

1533.47

195.425

1534.05

5

195.350

1534.64

195.275

1535.23

6

195.200

1535.82

195.125

1536.41

7

195.050

1537.00

194.975

1537.59

8

194.900

1538.19

194.825

1538.78

9

194.750

1539.37

194.675

1539.96

10

194.600

1540.56

194.525

1541.15

11

194.450

1541.75

194.375

1542.34

12

194.300

1542.94

194.225

1543.53

13

194.150

1544.13

194.075

1544.72

14

194.000

1545.32

193.925

1545.92

15

193.850

1546.52

193.775

1547.12

16

193.700

1547.72

193.625

1548.31

17

193.550

1548.91

193.475

1549.52

18

193.400

1550.12

193.325

1550.72

19

193.250

1551.32

193.175

1551.92

20

193.100

1552.52

193.025

1553.13

21

192.950

1553.73

192.875

1554.34

22

192.800

1554.94

192.725

1555.55

23

192.650

1556.15

192.575

1556.76

24

192.500

1557.36

192.425

1557.97

25

192.350

1558.58

192.275

1559.19

26

192.200

1559.79

192.125

1560.40

27

192.050

1561.01

191.975

1561.62

28

191.900

1562.23

191.825

1562.84

29

191.750

1563.45

191.675

1564.07

30

191.600

1564.68

191.525

1565.29

31

191.450

1565.90

191.375

1566.52