EXFO FTB-610 Wideband Copper Test Module - Manual (Page 18)

Getting Started
10 FTB-610
Cable Connections
Cable Connections
W
ARNING
These connections are intended for the express purpose of electrical
testing of common telephone line conductors, within the ranges
specified in the Technical Specifications on page 307. The device is
not intended to be used on telephone lines having voltages greater
than 280 VAC or 400 VDC, and it is also not intended to be used on
power distribution circuits.
Primary tip/ring (A/B)
connectors
Ground (Earth)
terminal
Secondary tip/ring (A/B)
connectors
Headset
POTS Speaker