EXFO FTB-8500 Series for FTB-500 - Manual (Page 166)

Port Tabs
152 FTB-8500 Series and FTB-8120NGE/8130NGE
Advanced Auto-Neg. TX
Advanced Auto-Neg. TX
Note: Advanced auto-negotiation is not available with the optical 100 Mbps and
10 Gig-E interfaces or when Through Mode (FTB-8510B) is selected.
Press TEST, Port, and Advanced Auto-Neg TX.
Enable Advanced Auto-Neg. Mode
The Auto-Negotiation should be activated if the remote connected port is
also set to Auto-Negotiation, otherwise should be deactivated. When
activated, the Ethernet and Fibre Channel Application will indicate to the
remote port which parameters to use. This setting is disabled by default.
The negotiation process is not immediately started when enabling the
auto-negotiation, the Negotiate button is used to start the process.
The Auto-Negotiation will use either the Configuration (Speed, Duplex and
Flow Control) settings, or the Local Capabilities when enabled.
The port configuration settings from the Interface Setup (Ethernet) on
page 140 are disabled when Advanced Auto-Neg. Mode is enabled.