Thanks for reply,but for mix,how can we connect PA-POS-OC3 and NM-1A-OC3-POM with each other since NM-1A-OC3-POM doesnot support sonet.

Any documentation for interconnecting either PA-POS-OC3,or NM-1A-OC3-POM or mix will be appreciated.

According to the following document for the NM-1A-OC3-POM, it identifies a step in the procedure to set it for SONET or SDH framing.

<http://www.cisco.com/en/US/docs/ios/12_4/12_4_mainline/atm_oc3.html>

The PA-POS-OC3 also indicates SONET or SDH POS framing in the following document:

<http://www.cisco.com/en/US/docs/interfaces_modules/port_adapters/install_upgrade/pos/pa-pos-oc3_install_config/3577over.html>

Hope this helps!

Link has example to configure PA-POS-OC3 back to back connection.

http://www.cisco.com/en/US/docs/ios/interface/configuration/guide/ir_cfg_ser_if_ps9587_TSD_Products_Configuration_Guide_Chapter.html#wp1016481

Both PA-POS-OC3 and NM-1A-OC3-POM have 3 type of cards

one Multimode (MM)

2 Single mode(SM)

When you mix these cards just see you have to connect MM to MM and SM to SM. Cannot mix MM with SM.

both support STS 3c rate so will not have problem in connecting

In most cases you can even mix SM with MM. Just use an attenuator inline with SM TX to MM RX.

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Hi Paolo,

We cannot mix MM with SM as the lot of difference between core size of MM & SM fiber.

We can certainly mix SM sHort haul with SM long Haul card working on same wavelngth using inline attenuator.