Ch.96
Ch.2
Ch.45
Ch.1
….
Channel Width = 50 GHz (all channels) 50 GHz
Frequency (THz)
196.10
196.05
196.00
191.35
4.8 THz
FNC00614_Rev_01
Figure 10
L100 Fixed Grid
….
Ch.Z
Ch.C
Ch.B
Ch.A
50 GHz
Frequency (THz)
196.10
196.05625
196.00
191.34375
37.5 GHz
37.5 GHz
75 GHz
4.8 THz
FNC00615_Rev_01
Figure 11
L100 Flexible Grid
User Channel
The user channel allows the user to set up an Ethernet communicaon connecon between two devices (either
ASCII terminals or computers) located at adjacent or nonadjacent L100 Lambda node. The user channel
communicaons are transmied through the L100 as part of the OSC payload. A user channel is funconally
equivalent to a hardwired, back-to-back Ethernet connecon between the devices.
Data packets are received through Ethernet management port (RJ-45 connector), wrapped in High-Level Data
Link Control (HDLC) frame, and transferred across the networks or NEs. No capability exists for the interface to
communicate with the user network from a logical perspecve; therefore, no MAC address is assigned to the
interface. It is merely a 10 Mb/s Ethernet data pipe between NEs.
System Description and Engineering
ROADM Features
39
Release 19.1.1 · Issue 1.1, May 2021
Fujitsu and Fujitsu Customer Use Only