Nortel-networks BayStack 893-862-B Manuale Utente Scaricare il pdf (Pagina 8)

6 893-862-B

BayStack Single Mode Fiber Media Adapter

The optical power budget for the single-mode ﬁber media

adapter is shown in T

able 1. Power loss in the link cannot exceed

the value for the type of ﬁber optic cable you are using.

Only in-line ﬁber-to-ﬁber connections (a connection between

two ﬁbers terminated with ﬁber connectors, using a ﬁber-to-ﬁber

connector) count against the optical power budget. The loss in a

ﬁber connection at the ends of the link is included in the optical

power budget and does not count as an in-line connection.

Table 3. Single-mode ﬁber optical power budget

Parameter 9/125

Transmitted power (average) –29.0 dBm

Receiver sensitivity (average) –35.5 dBm

Optical power budget 6.5 dB

NOTE:

Your ﬁber connection must meet the optical

power budget and the Ethernet repeater rules for your

network.

893-862-B SMF MDA Page 6 Monday, September 30, 1996 1:32 PM

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Nortel-networks BayStack 893-862-B Manuale Utente Pagina 8