is sometimes overlooked that to drive the receiver too high can be as bad as
to send too low a signal.
I hope this helps
Sent from my HTC
- Reply message -
From: "Martin T"
Date: Sun, Aug 7, 2011 22:03
Subject: [j-nsp] acceptable/good laser receive power in case of different
interfa
is sometimes overlooked that to drive the receiver too high can be as bad as
to send too low a signal.
I hope this helps
Sent from my HTC
- Reply message -
From: "Martin T"
Date: Sun, Aug 7, 2011 22:03
Subject: [j-nsp] acceptable/good laser receive power in case of different
interfa
On Aug 7, 2011, at 6:11 PM, Joel Jaeggli wrote:
>
> On Aug 7, 2011, at 2:03 PM, Martin T wrote:
>
>> Lane,
>> while browsing the specifications of the optical modules listed in
>> this "Optical Interface Support—EX 3200 and EX 4200 Switches.pdf"
>> file:
>>
>> http://www.juniper.net/techpubs/en
2011/8/7 Martin T
> Lane,
> while browsing the specifications of the optical modules listed in
> this "Optical Interface Support—EX 3200 and EX 4200 Switches.pdf"
> file:
>
>
> http://www.juniper.net/techpubs/en_US/release-independent/junos/topics/reference/specifications/optical-interface-suppor
On Aug 7, 2011, at 2:03 PM, Martin T wrote:
> Lane,
> while browsing the specifications of the optical modules listed in
> this "Optical Interface Support—EX 3200 and EX 4200 Switches.pdf"
> file:
>
> http://www.juniper.net/techpubs/en_US/release-independent/junos/topics/reference/specifications
On Sun, Aug 7, 2011 at 2:03 PM, Martin T wrote:
> Lane,
> while browsing the specifications of the optical modules listed in
> this "Optical Interface Support—EX 3200 and EX 4200 Switches.pdf"
> file:
>
> http://www.juniper.net/techpubs/en_US/release-independent/junos/topics/reference/specificatio
Lane,
while browsing the specifications of the optical modules listed in
this "Optical Interface Support—EX 3200 and EX 4200 Switches.pdf"
file:
http://www.juniper.net/techpubs/en_US/release-independent/junos/topics/reference/specifications/optical-interface-support-ex-series.pdf
..all the module
2011/8/2 Joel Jaeggli
>
> if these are sr multimode optics, the -15 number is low the -7 number is
> marginal and everything else is decent.
>
> either the -15 one is quite long ( for sr) or needs to be
> replugged/cleaned/reterminated
>
>
Yea I agree. The -15 is a bit low unless it's is at the
2011/8/2 Martin T
> What is the acceptable Rx power in case of SFP/XFP? For example, here
> are XFP Tx and Rx signals from six FXP's:
>
> 1:
> Laser output power: 1.2920 mW / 1.11 dBm
> Laser rx power: 0.0285 mW / -15.45 dBm
>
> 2:
> Laser out
http://www.juniper.net/techpubs/en_US/release-independent/junos/topics/reference/specifications/optical-interface-support-ex-series.pdf
Read above. Depends on type of optic. TX "launch power" should be consistent,
but RX "receive power" depends on the fiber distance, patch panels, and other
f
if these are sr multimode optics, the -15 number is low the -7 number is
marginal and everything else is decent.
either the -15 one is quite long ( for sr) or needs to be
replugged/cleaned/reterminated
On Aug 2, 2011, at 2:53 PM, chip wrote:
> Depending on whose optics you're using there shou
On Tue, Aug 2, 2011 at 2:26 PM, Martin T wrote:
> What is the acceptable Rx power in case of SFP/XFP? For example, here
> are XFP Tx and Rx signals from six FXP's:
>
> 1:
> Laser output power : 1.2920 mW / 1.11 dBm
> Laser rx power : 0.0285 mW /
Depending on whose optics you're using there should be a data sheet
that shows the acceptable Tx/Rx levels for each type available from
your vendor. I can't seem to locate a document for Juniper at the
moment. But I assume they shouldn't be that far off from Cisco stuff.
For example, here's a da
What is the acceptable Rx power in case of SFP/XFP? For example, here
are XFP Tx and Rx signals from six FXP's:
1:
Laser output power: 1.2920 mW / 1.11 dBm
Laser rx power: 0.0285 mW / -15.45 dBm
2:
Laser output power:
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