The LNW49 OLIU uses Pluggable Transmission Module (PTM) optics. PTM optics can be "plugged" into the circuit pack as they become needed. Because the optics are pluggable, different ranges are available. The LNW49 can be equipped with IR-1, LR-1, LR-2, or CWDM optics. These optics meet standard optical specs per Telcordia ® GR-253-CORE and ITU G.957.
The IR-1 optics available for this circuit pack also conform to SR-1 specifications. Thus, the LNW49 can also be employed in short reach applications.
The multi-longitudinal-mode/Fabry-Perot (FP) laser is used for short or intermediate-reach transmission. A single-longitudinal-mode/ distributed feedback (DFB) laser transmitter is employed in long-reach applications. The IR-1 and LR-1 PTM optics for the LNW49 supply a 1310 nm, scrambled non-return-to-zero (NRZ) coded signal (622.08 Mb/s). The LR-2 PTM optics for the LNW49 supply a 1550 nm, scrambled non-return-to-zero (NRZ) coded signal (622.08 Mb/s).
The LNW49 circuit pack some of the supported OC-N PTMs are approved for OSP deployments. You must install PTMs that are approved for industrial temperatures to use the LNW49 in OSP environments. All of the CWDM PTMs are approved for extended temperatures and are therefore only approved for Central Office environments.
For detailed system, transmitter, receiver, and link budget specifications, see OC-12 PTM optical specifications.
The table below lists the PTM optics that may be used in the LNW49 circuit pack.
Alcatel-Lucent 1665 DMX utilizes Pluggable Transmission Module (PTM) optics on the LNW49 circuit pack. To ensure proper optical performance, mechanical fit, compliance with EMC, and compliance with laser safety standards, the Alcatel-Lucent specified PTM transceivers listed in the table below must be used.
Only the Alcatel-Lucent specified PTM transceivers listed below are compatible with Alcatel-Lucent 1665 DMX software. If non-Alcatel-Lucent specified PTM transceivers are installed in Alcatel-Lucent 1665 DMX, the system will reject that transceiver, and that optical port will become inoperable (until approved parts are installed).
|
Apparatus code |
Description |
|---|---|
|
OC12IR1-I1 |
OC-12 IR-1 SFP, 15 km, 1310 nm |
|
OC12LR1-I1 |
OC-12 LR-1 SFP, 40 km, 1310 nm |
|
OC12LR2-I1 |
OC-12 LR-2 SFP, 80 km, 1550 nm |
|
S622C47EL |
OC-3/STM-1 or OC-12/STM-4 CWDM SFP, 96 km, 1471 nm |
|
S622C49EL |
OC-3/STM-1 or OC-12/STM-4 CWDM SFP, 96 km, 1491 nm |
|
S622C51EL |
OC-3/STM-1 or OC-12/STM-4 CWDM SFP, 96 km, 1511 nm |
|
S622C53EL |
OC-3/STM-1 or OC-12/STM-4 CWDM SFP, 96 km, 1531 nm |
|
S622C55EL |
OC-3/STM-1 or OC-12/STM-4 CWDM SFP, 96 km, 1551 nm |
|
S622C57EL |
OC-3/STM-1 or OC-12/STM-4 CWDM SFP, 96 km, 1571 nm |
|
S622C59EL |
OC-3/STM-1 or OC-12/STM-4 CWDM SFP, 96 km, 1591 nm |
|
S622C61EL |
OC-3/STM-1 or OC-12/STM-4 CWDM SFP, 96 km, 1611 nm |
The following parameters are monitored on the OC-12 interfaces:
SONET line and path performance monitoring complies with the standards outlined in GR-253-CORE. For detailed PM parameter thresholds on the OC-12 interfaces, see Performance monitoring.
| November 2011 | Copyright © 2011 Alcatel-Lucent. All rights reserved. |