[c-nsp] How to calculate transceiver power of SFP on 7200 series?

[Justin M. Streiner]

On Tue, 8 Jul 2014, PlaWanSai RMUTT CPE IX wrote:

>                TGN#sho int g0/1 tra
>
>  TX power 3888800 nW / 5 dBm (+/- 3dBm)
>
> What is power in dBm?

Assuming nW is nanowatts (1 billionth of a watt):
3888800 nW = .0038888 watts

.0038888 watts = approx 5.898 dBm.

If that "/5 dBm" means the result from above should be divided by 5, then 
the actual transmit power would be a bit under +1.2 dBm.

Without knowing what type of transceiver you have, I don't know if that's 
in the expected range.

Note: Google found this for me:
http://www.rapidtables.com/convert/power/Watt_to_dBm.htm

jms