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PN: 03030VBF
Bi-directional optical supervisory channel and timing transmission unit
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Hardware Tested

Hardware Tested x

In order to avoid hardware malfunction, each equipment will be strictly tested before delivery and the test report will be packed inside equipment and delivered together. Learn More

Hardware Compatibility

Hardware Compatibility x

Backed up by our experienced pre-sales support team, and volume documentation, to avoid purchasing incompatible hardware.


Bi-directional optical supervisory channel and timing transmission unit

Processes two channels of supervisory signals in opposite directions, transmits/extracts overhead information.

Processes and sends the overhead information to the SCC.

Processes the IEEE 1588v2 protocol for time synchronization.

Supports transparent transmission of two channels of FE electrical signals.

Receives, processes, and transmits two optical supervisory signals.

Supports transparent transmission of two channels of FE electrical signals.

Supports IEEE 1588v2 function.

Supports physical clock function.

Supports a maximum of 40.5 dB transmission.

The ST2 board is independent of the SCC.

Transmits signals from section to section.

Provides the 3R function.

The supervisory channel signal wavelength is 1511 nm

TN11ST2 is a optical supervisoy channel board, two channels of supervisory signals in opposite directions. TN11ST2 part number is 03030VBF.

Tech Specs
Front Panel

There are indicators and interfaces on the front panel of the ST2 board.


Valid Slot

OSN 8800 T64 subrack: TN11ST2 can be installed in slots IU1-IU8, IU11-IU42, IU45-IU68. 

OSN 8800 T32 subrack: TN11ST2 can be installed in slots IU1-IU8, IU12-IU27, IU29-IU36. 

OSN 8800 T16 subrack: TN11ST2 can be installed in slots IU1-IU8, IU11-IU18. 

OSN 8800 platform subrack: TN11ST2 can be installed in slots IU3-IU16. 

OSN 6800 subrack: TN11ST2 can be installed in slots IU1-IU8, IU11-IU16. 

OSN 3800 chassis: TN11ST2 can be installed in slots IU2-IU5

Optical Interface Parameter
Item Unit Value
150 km OSC Module 80 km OSC Module
Signal rate Mbit/s 155.52 155.52
Target distance - 150 km (62 mi.) 80 km (49.7 mi.)
Operating wavelength range nm 1504.5 to 1517.5 1484.5 to 1497.5 1504.5 to 1517.5
1484.5 to 1497.5
Launched optical power dBm 0.5 to 5 -4 to 1
Receiver sensitivity dBm <= -41 <= -34
Receiver overload dBm -10 -10
Mechanical Specifications
Dimensions (mm) 25.4 (W) x 220(D) x 264.6 (H)
Weight (kg) 0.95



Q: How many hardware version ST2 have?

A: ST2 is available in one functional version, namely, TN11. The mapping between the board and equipment as below:

BoardGeneral 8800 T64 SubrackEnhanced 8800 T64 SubrackGeneral 8800 T32 SubrackEnhanced 8800 T32 Subrack8800 T16 Subrack8800 Universal Platform Subrack6800 Subrack3800 Chassis

Q: Can I return/exchange board if not compatible with my system?

A: Yes, please tell our sales team your system and main control board version, before purchase.

Q: The board is new or refurbished?

A: Yes, it is original new, not been used.

Q: What is the lead time for TN11ST2 board?

A: In normal condition is 5 days, better to confirm with our sales team before your purchase.

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