Allied Telesis AT-S65 - Manual (Page 84)

Chapter 5: Working With Line Cards
84
Figure 41 shows loopback set for the line side only (mode 7). Optical
signal input at the WDM (line) side is looped back and also propagated to
the port (SFP) side.
Figure 41. Mode 7: Loopback on the Line Side Only
Setting or
Changing the
Line Card’s
Mode of
Operation
To set the line card’s mode of operation, perform the following procedure:
1. From the Main Menu, select Module Status and Configuration.
The Module Status and Configuration Menu is shown in Figure 24 on
page 52.
2. Select the line card whose mode you want to set or change and press
Enter.
CWDM
Transciever
SFP
Line
Side
Port
Side
CWDM
Transciever
SFP
Line
Side
Port
Side
CWDM
Transciever
SFP
Line
Side
Port
Side
CWDM
Transciever
SFP
Line
Side
Port
Side
X
X X X
X
X
X
X
X X X X
Legend
No optical signal
Optical signal present
Case B:
Port side: optical
signal received
Line side: optical
signal received Case C:
Port side: optical signal
received
Line side: no optical
signal received Case D:
Port side: no optical
signal received
Line side: no optical
signal received Case A:
Port side: no optical
signal received
Line side: optical signal
received