Optical Transponder Board

In this user interface, you can set parameters for optical transponder boards. The parameters are laser status, automatic laser shutdown, maximum or minimum attenuation rate and path use status.

Parameters

Field

Value

Description

Optical Interface/Channel

  • Equipment that supports the master and slave shelf management: NE name-shelf ID(shelf name)-slot number-board name-port number(port name)
  • Equipment that does not support the master and slave shelf management: NE name-slot number-board name-port number(port name)
NOTE:

For details about the differences between the standard and compatibility modes, see the Impacts of the Standard Mode on the Web LCT in Channel Model (OTU, Line or PID Board).

Optical Interface Name

For example: RX1/TX1

Indicates the default names. Do not modify this field.

Channel Use Status

Used, Unused

Specifies whether to use the path.

Optical Interface Loopback

Non-Loopback, Inloop, Outloop

Specifies loopback according to the port of the OTU board.

Loopback may interrupt services and can be used only for testing or troubleshooting.

Service Type

For example: 10GE LAN

Specifies the service type of the client side.

OFC Enabled

Enabled, Disabled

Enables or disables the OFC function.

This parameter can be edited only when you set Service Type to ISC 1G or ISC 2G.

Port Mapping

Bit Transparent Mapping (11.1G), MAC Transparent Mapping (10.7G), Bit Transparent Mapping (11.1G)

Indicates the flow control mode of the mapped trail of the service that passes the port.

Client Service Bearer Rate (M)

The transmission rate of the client-side service varies according to different OTU boards as follows:
  • 100 to 2500 (applicable to the LDMS, LDMD, 12LDM, 12LQMS, 12LQMD, 13LQM, 12TQM, and TOM boards)
  • 100 to 5000 (applicable to the 12LOM board)
  • 16 to 2500 (applicable to other OTU boards)

Indicates the range of client service rates that the equipment can bear.

Laser Status

Open, Close

Specifies the status of a laser.

Automatic Laser Shutdown

Enabled, Disabled

Specifies whether to shut down the laser automatically. If auto-shutdown is set, when the received signal is lost, the laser shuts down automatically, so that the laser service life is extended and body injury is avoided.

ALS Auxiliary Condition

FW_Defect, BW_Client_R_LOS, BW_WDM_Defect, FW_OPUk_CSF

When Automatic Laser Shutdown function is enabled, you can choose to set auxiliary conditions for ALS on Client port.

NOTE:

Several conditions can be chosen at the same time.

Hold-Off Time of Automatic Laser Shutdown

0s to 2s, step:100ms

Default: 0s

Specifies the hold-off time for automatically disabling lasers. With ALS enabled, the hold-off time is a time period from the point when the system detects service interruption to the point when ALS automatically shuts down the related lasers.

Hold-off Time of Automatic Laser Turn-On

0s to 2s, step:100ms

Default: 0s

Specifies the hold-off time for automatically enabling lasers. With ALS enabled, the hold-off time is a time period from the point when the system detects service recovery to the point when ALS automatically enables the related lasers.

Service

For example: OTN

Selects the service mode of the port.

Board

The specific value is related to the board.

Sets the mode for the board. See Board Mode (WDM Interface) for more information.

LPT Enabled

Enabled, Disabled

Enables or disables the LPT pass-through function of the EPL service.

Currently, only the L4G and TBE board on the NG WDM series equipment supports LPT pass-through.

FC Internal Working

Normal , Special

Specifies the FC internal working mode.

Current Bearer Rate (M)

For example: 50

Indicates the rate of the client service that is currently accessed.

Max. Bearer Ratio (M)

34 to 2700

Indicates the maximum traffic that can be processed.

Min. Bearer Ratio (M)

34 to 2700

Indicates the minimum traffic that can be processed.

FEC Working State

Enabled, Disabled

Specifies whether the board performs FEC processing on data.

FEC

FEC, AFEC, HFEC, SDFEC

Sets the FEC type.

NOTE:

If you modify the value of the FEC , the default value of the Degrade Threshold before FEC will be modified automatically.

AFEC Grade

1, 2, 3

Set the AFEC grade.

NOTE:
  • The larger the grade is, the longer the error correction duration will be.
  • Generally, you are not advised to set the grade ton 1.

Actual Wavelength No./Wavelength (nm)/Frequency (THz)

For example: 1/1529.16/196.05

Indicates the actual working wavelength of the optical port.

An actual wavelength is the optical wavelength emitted by a laser.

Actual Band Type

C, CWDM

Indicates the band of the actual working wavelength.

Configure Wavelength No./Wavelength (nm)/Frequency (THz)

For example: 1/1529.16/196.05

Indicates the configured wavelength, wavelength number, and frequency. This parameter is applicable to the NG WDM equipment.

A configured wavelength is a logical wavelength. The function of setting configured wavelengths enables you to perform networking planning on the Web LCT instead of on the physical modules. When you use this function, manual mistakes will not lead to inconsistency between network deployment and network planning. End-to-end management of the Web LCT is implemented based on configured wavelengths instead of actual wavelengths of physical modules. The value of a configured wavelength is not changed or lost when relevant physical boards are changed or out of position.

You need to set configured wavelengths during network planning. The functions of configured wavelengths are as follows:
  • In the case of a tunable wavelength board, the corresponding NE automatically adjusts the wavelength of the board to an appropriate value according to the configured wavelength information of the corresponding logical slot. When you change a board, it is not necessary to manually adjust the wavelength. This automatic adjustment prevents manual mistakes.
  • When an inappropriate fixed wavelength board is used, the corresponding NE detects that the wavelength of the current physical module is inconsistent with the configured wavelength. Thus, an alarm is generated. This greatly reduces the time for troubleshooting when services are interrupted due to an inappropriate wavelength. To keep consistency between the actual wavelength and configured wavelength, you can change the optical module of the board.
NOTICE:

Actual wavelengths must be consistent with the corresponding planned wavelengths. Otherwise, relevant services are interrupted and the networking planning is affected.

Configure Band Type

C, CWDM

Configures the band for the working wavelength.

Maximum Packet Length

1518-9600

Specifies the maximum packet length of the data. Packets that exceed this length are discarded.

Ethernet Working

Auto-Negotiation, 10M Half-Duplex, 10M Full-Duplex, 100M Half-Duplex, 100M Full-Duplex, 1000M Half-Duplex, 1000M Full-Duplex,

Indicates the working modes of the Ethernet port. Auto-Negotiation can automatically detect the optimized combination of working modes of the opposite port. This mode is easy to maintain and is recommended.

Make sure that the working modes of this port and the opposite port are consistent. If the port modes are different, services are down.

OTN Overhead Transparent Transmission

Disabled, Enabled

Enables or disables the function of OTN Overhead Transparent Transmission.

SD Trigger Condition

B1_SD, OTUk_DEG, ODUk_PM_DEG, ODUk_TCM1_DEG, ODUk_TCM2_DEG, ODUk_TCM3_DEG, ODUk_TCM4_DEG, ODUk_TCM5_DEG, ODUk_TCM6_DEG

Specifies the SD switching condition.

Guaranteed Bandwidth for Client-Side GE Service

0 to 1000

Indicates the rate range of client services that the equipment can bear.

Auto-Negotiation of GE

Enabled, Disabled

Specifies whether to perform port auto-negotiation.

8B10B Code Violation Threshold

0 to 15

Specifies the 8B10B Code Violation Threshold.

FC Distance Extension

Enabled, Disabled

Enables or disables the FC distance extension.

ALS Overhead Use

Standard mode, Compatible mode (52TOM)

Default: Standard mode

Specifies the ALS overhead use mode for an LDE card.

The Standard mode is used for the connection between LDE card and 52TOG card.

The Compatible mode (52TOM) is used for the connection between LDE card and 52TOM card.

ODU Timeslot Configuration

Assign random, Assign consecutive

Specifies the timeslot configuration mode for an optical port.
NOTE:
  • To create ODUflex cross-connections for line or tributary-line boards, set ODU Timeslot Configuration to Assign random.
  • In order to package the signal from ODU0 to ODU2 for line or tributary-line boards in standard mode, set ODU Timeslot Configuration to Assign random.

ODUflex Tolerance (ppm)

0 to 100

Specifies the tolerance for an optical port.

Enable Line Rate

Enable, Disable

Default: Enable

Enables or disables the line rate.

Line Rate

Standard , Speedup , Speedup 11.3G

Default: Standard

The Line Rate parameter provides an option to set the OTN line rate.

Insert Code Type

PN11, MS_AIS

Inserts code when client-side STM-64 signal fails.

Applies to fault detection and location. When the tributary or line board at the upstream site is faulty or when the line board at the downstream site is faulty, users can specify the output code type at the downstream site using this parameter.

Cross-Connection Configuration

Automatic, Manual

When intra-board 1+1 protection is configured for the board, set this parameter to Automatic. When ODUk SNCP protection is configured for the board, set this parameter to Manual.

GCC Receive/Transmit

Dual fed and selective receiving, Independent communication

WDM-side optical ports are usually used in pairs, and they can be configured as GCC channels working in either of the following modes:
  • Independent communication: The two optical ports in a pair both act as GCC channels. They receive and transmit signaling independently.
  • Dual fed and selective receiving: Only the selective receiving optical port acts as a GCC channel.
NOTE:
In the case of different boards on different equipment, different WDM interfaces are supported. According to the corresponding user interface of the NMS, the parameter description table lists the whole set of parameters in this user interface of the NMS. For detailed parameters supported by each board, see the Hardware Description for each type of equipment.

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