| Basic function | LTX converts signal as follows: - TN11LTX: 10x 10GE LAN/10GE WAN/STM-64/OC-192<->1x OTU4
- TN12LTX: 10x 10GE LAN/10GE WAN/STM-64/OC-192/OTU2/OTU2e<->1x
OTU4
- TN15LTX: 10x 10GE LAN/10GE
WAN/STM-64/OC-192/OTU2/OTU2e/FC1200/FC800<->1x OTU4
- TN17LTX: 10x 10GE LAN/10GE
WAN/STM-64/OC-192/OTU2/OTU2e/FC1200/FC800/InfiniBand 5G<->1x
OTU4
|
| Client-side service type | 10GE LAN: Ethernet service at a rate of 10.31 Gbit/s 10GE WAN: Ethernet service at a rate of 9.95 Gbit/s STM-64/OC-192: SDH/SONET service at a rate of 9.95 Gbit/s OTU2: OTN service at a rate of 10.71 Gbit/s OTU2e: OTN service at a rate of 11.1 Gbit/s FC1200: SAN service at a rate of 10.51 Gbit/s FC800: SAN service at a rate of 8.5 Gbit/s Infiniband 5G: SAN service at a rate of 5 Gbit/s |
| OTN function | - Provides the OTU4 interface on WDM-side.
- Supports the OTN frame format and overhead processing compliant
with ITU-T G.709.
- ODUk (k=2, 4, ODUflex) layer: supports the PM and TCM function, and
PM and TCM non-intrusive monitoring functions.
- Supports SM function for OTU2.
- Supports SM function for OTU4.
NOTE:The functions on ODUflex layer are only supported by
TN15LTX/TN17LTX, the TCM and TCM non-intrusive monitoring function
on ODU2 layer are only supported by TN15LTX/TN17LTX. |
| WDM specification | Supports ITU-T G.694.1-compliant DWDM specifications. |
| Tunable wavelength function | The board can tune the optical signal output on the WDM side within
the range of 80 wavelengths in C-band with the channel spacing of
50 GHz. |
| ESC function | Supported on the WDM-side. The ESC function is supported on the
client side of the TN15LTX/TN17LTX board only when OTU2/OTU2e
signals are received. NOTE:The TN12LTX/TN11LTX board supports ESC transparent transmission
rather than ESC processing on the client side. To implement the ESC function, the TN15LTX/TN17LTX board supports a
maximum of six signals on the client side. |
| PRBS test function | Supports the PRBS function on the client and WDM sides. NOTE:The PRBS function on the client side is supported only when the
client-side service type is STM-64/OC-192/OTU2/OTU2e. |
| LPT function | The board supports the LPT function only when the client-side
service type is 10GE LAN. |
| FEC coding | - Client side:
When OTU2/OTU2e services are provisioned, the client-side TX port
supports FEC coding that is compliant with ITU-T G.709 and the
client-side RX port does not support FEC decoding. TN15LTX/TN17LTX: When OTU2/OTU2e services are provisioned, the
board supports FEC and AFEC. - WDM side:
TN11LTX supports HFEC and SDFEC. TN12LTX supports HFEC and SDFEC. TN15LTX/TN17LTX supports SDFEC2.
NOTE:Boards that use different FEC modes cannot interconnect with each
other. |
| Alarms and performance events monitoring | - Monitors BIP8 bytes (Bursty mode) to help locate line failures.
- Monitors B1 bytes to help locate faults.
- Monitors OTN alarms and performance events.
- Monitors parameters such as the bias current, temperature, and
optical power of the laser.
- Supports the remote monitoring (RMON) of Ethernet services (10GE
LAN).
- Supports the monitoring of CD and PMD performance.
|
| Regeneration board | The WDM-side signals of an LTX board can be regenerated using the
LTX,NS4,N401,N402,U401 board of the same type. For example, - The type of the TN12LTXT01 board is T01, and the WDM-side signals
of the TN12LTXT01 board can be regenerated using the LTX,NS4,
N401,N402 or U401 board of the T01 type, such as
TN54NS4T01,TN57NS4T01,TN11LTXT01,TN12LTXT01,
TNV1N401T01,TNV2N401T01,TNV2N402T01 and TNV2U401T01.
|
| ALS function | Supports the ALS function on the client side when client services
are non-OTN services. |
| Test frame | TN11LTX/TN12LTX: Not supported TN15LTX/TN17LTX: Supports the test frame function when the board
receives 10GE LAN services and the port mapping is MAC Transparent Mapping(10.7G) on its client side. |
| Latency measurement | The TN12LTX/TN15LTX/TN17LTX board support latency measurement. The
bidirectional latency at the ODUk layer between two OTU boards
supporting the latency measurement function can be measured, and
the latency data is displayed on the U2000. NOTE:When the client service is OTU2/OTU2e, the board does not support
latency measurement. The latency measurement function can be configured only on one port
at a time. |
| IEEE 1588v2 | Not supported |
| Physical clock | When the board receives 10GE LAN services and the port mapping is Bit Transparent Mapping (11.1 G) on its client side, the board can support synchronous Ethernet
transparent transmission instead of synchronous Ethernet
processing. |
| Optical-layer ASON | Supported |
| Electrical-layer ASON | Not supported |
| Protection scheme | - Supports client 1+1 protection.
- Supports intra-board 1+1 protection (when working with the OLP or
DCP board).
|
| Ethernet service mapping mode | TN11LTX/TN12LTX: Bit Transparent Mapping (11.1G) TN15LTX/TN17LTX: Bit Transparent Mapping (11.1G) and MAC
Transparent Mapping(10.7G) |
| Loopback | Client side | Inloop | Supported |
| Outloop |
| WDM side | Inloop | Supported |
| Outloop |
Protocol or standard compliance | Protocols or standards (non-performance monitoring) with which
transparently transmitted services comply | IEEE 802.3ae ITU-T G.707 ITU-T G.782 ITU-T G.783 GR-253-CORE Synchronous Optical Network (SONET) Transport Systems:
Common Generic NCITS FIBRE CHANNEL PHYSICAL INTERFACES (FC-PI) NCITS FIBRE CHANNEL LINK SERVICES (FC-LS) NCITS FIBRE CHANNEL FRAMING AND SIGNALING-2 (FC-FS-2) NCITS FIBRE CHANNEL BACKBONE-3 (FC-BB-3) NCITS FIBRE CHANNEL SWITCH FABRIC-3 (FC-SW-3) IBM Private Protocol |
Protocols or standards (performance monitoring) for processing
services | ITU-T G.805 ITU-T G.806 ITU-T G.709 ITU-T G.872 ITU-T G.7710 ITU-T G.798 ITU-T G.874 ITU-T M.3100 ITU-T G.874.1 ITU-T G.875 ITU-T G.808.1 ITU-T G.841 ITU-T G.8201 ITU-T G.694.1 |
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