The LNW203 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 LNW203 can be equipped with IR-1, LR-1, or LR-2 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 LNW203 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 LNW203 supply a 1310 nm, scrambled non-return-to-zero (NRZ) coded signal (622.08 Mb/s). The LR-2 PTM optics for the LNW203 supply a 1550 nm, scrambled non-return-to-zero (NRZ) coded signal (622.08 Mb/s).
The LNW203 circuit pack and the supported OC-12 PTMs are approved for OSP deployments. You must install PTMs that are approved for industrial temperatures to use the LNW203 in OSP 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 LNW203 circuit pack.
Alcatel-Lucent 1665 DMX utilizes Pluggable Transmission Module (PTM) optics on the LNW203 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 |
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. |