EXFO FTB-800 Series for FTB-1 - Manual (Page 144)

Test Setup - Test Configurator, Timer, and System
134 FTB-700G/800 Series
Interface (Ethernet)

Cable Mode is available with 10/100/1000M Electrical interface.
Availability of choices depend on the test application.
Manual mode is selected when the Auto-Negotiation check box is
cleared and allows to select the type of cable: MDI (default) for straight
through cable or MDIX for crossover cable.
Automatic mode is selected when the Auto-Negotiation check box is
selected and allows the FTB-700G/800 Series to automatically detect
the MDI or MDIX cable type.

Local Clock is only available with 1GE interface and allows to set the
provenance of the clock: Master (default), or Slave, or Auto
11
.
1. Not available with SyncE test application.