EXFO FTB-500 (Window XP) - Manual (Page 27)

Safety Information
FTB-500 17
Electrical Safety Information
The color coding used in the electric cable depends on the cable. New
plugs should meet the local safety requirements and include:

adequate load-carrying capacity

ground connection

cable clamp
W
ARNING

Use the external power supply indoors only.

Position the unit so that the air can circulate freely around it.

Operation of any electrical instrument around flammable gases
or fumes constitutes a major safety hazard.

To avoid electrical shock, do not operate the unit if any part of
the outer surface (covers, panels, etc.) is damaged.

Only authorized personnel should carry out adjustments,
maintenance or repair of opened units under voltage. A person
qualified in first aid must also be present. Do not replace any
components while power cable and battery are connected.

(Eight-slot model only) Use only fuses with the required rated
current and specified type (F6.3A L, 5 mm x 20 mm (0.197 in x
0.787 in), fast-acting, low-breaking capacity, 250 V). Do not use
repaired fuses or short-circuited fuse holders.

Unless otherwise specified, all interfaces are intended for
connection to Safety Extra Low Voltage (SELV) circuits only.

Capacitors inside the unit may be charged even if the unit has
been disconnected from its electrical supply.