EXFO FTB-8500 Series for FTB-500 - Manual (Page 32)

Physical Interfaces and LEDs
18 FTB-8500 Series and FTB-8120NGE/8130NGE
FTB-8525 and FTB-8535 Models
Electrical 10/100/1000 Mbps Ethernet
The FTB-8525/FTB-8535 module provides one electrical port for 10Base-T,
100Base-T, or 1000Base-T.
Port connector type is RJ-45 for category 5 unshielded twisted pair (UTP)
connection.
Note: Refer to Specifications on page 453 for cable specifications.

Connect the 10/100/1000 electrical signal to be tested to the port
ETHERNET 10/100/1000.

LEDs
LED Status Description
LINK/ACT
(Green) On Ethernet link up.
Off Ethernet link down.
Flashing TX/RX activity.
DUPLEX
(Yellow) On Full Duplex mode.
Off Half Duplex mode.
Flashing Collisions are detected.