CANOGA PERKINS N525 Ethernet Termination Service Unit - Manual (Page 63)

N525 Ethernet Termination Service Unit 3-45
3. At the Functional Configuration Menu, type the number for an item and press <Enter>.
Pressing <Space> cycles through the options. Press <Tab> to highlight the select Local or
Remote columns. Press <Enter> to select an option.
a. User Port Setting
Sets data rate and duplex option on the User port. After typing [ 1 ] <Enter>, pressing
<Space> cycles through the Data Speed and Duplex options. Options are Interface
Module dependant.
b. Ext Port Setting
Sets data rate and duplex option on the User port. After typing [ 1 ] <Enter>, pressing
<Space> cycles through the Data Speed and Duplex options. Options are Interface
Module dependant.
c. RMTF
Enables or Disables Remote Fault Forwarding (RMTF) when SBMC is enabled.
Enables or Disables Remote Fault Forwarding and Link Loss Echo (RMTF/LLE)
when SBMC disabled. Pressing <Space> cycles through the options. Options are
Disabled, Ext Port Enabled.
If an optical port loses the receive optical signal, it sends a Remote Fault (RMTF)
signal on its Transmit to the distant end on the optical link. The Rx LED is off, and an
alarm flags the link loss on the optical port. When a optical port receives a Remote
Fault signal, the Rx LED lights red and an alarm flags the remote side optical link
failure. Both local and remote link partners must be configured to the same RMTF
enable/disable setting. RMTF complies with the IEEE802.3u Remote Fault standard.
See Figure 18.
Usr
Prt
Ext
Prt
Rx
Rx Tx
Tx
Usr
Prt
Ext
Prt
Rx
Rx Tx
Tx
RMTF
Local Device Remote Device
• Tx transmits RMTF to remote device
• Local device Rx turns OFF
• Local device Rx detects link loss
• Remote device Rx lights red
Figure 22 - Remote Fault Signal
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