X2 and XENPACK Transceivers

Answered Question
Dec 28th, 2007
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Hi,


I have very questions about X2 and XENPAK transceivers:

1) Can i connect a X2 trans with Xenpak trans?

2) Can I connect a X2-CX4 with Xenpak X2-LX4?


Thanks

Correct Answer by justinclarke1977 about 9 years 6 months ago

1)X2 and Xenpak optics differ in form factor only (X2 is a bit smaller). You can connect an X2 to a Xenpak as long as the optics are of the same transceiver type. Both have SC connectors (less the X2-CX4 which uses InfiniBand connectors).


Note that the newer LRM specification (Long Reach Multimode) is only available in X2 format. However, LX4 (4 x 2.5Gb wavelengths) is available as both X2 & Xenpak.


2) No. The X2-CX4 (IEEE 802.3ak) module uses CX4 cable (copper) whereas the X2-LX4 (IEEE 802.3ae) uses multimode fibre, either 62.5 or 50 micron.


Hope that helps...

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Correct Answer
justinclarke1977 Mon, 01/07/2008 - 06:09
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1)X2 and Xenpak optics differ in form factor only (X2 is a bit smaller). You can connect an X2 to a Xenpak as long as the optics are of the same transceiver type. Both have SC connectors (less the X2-CX4 which uses InfiniBand connectors).


Note that the newer LRM specification (Long Reach Multimode) is only available in X2 format. However, LX4 (4 x 2.5Gb wavelengths) is available as both X2 & Xenpak.


2) No. The X2-CX4 (IEEE 802.3ak) module uses CX4 cable (copper) whereas the X2-LX4 (IEEE 802.3ae) uses multimode fibre, either 62.5 or 50 micron.


Hope that helps...

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