Toa FS-970 SERIES - Manual (Page 42)

42
12. CONNECTING THE RACK-MOUNTED COMPONENTS TO EXTERNAL
LINES
12.1. Names of the Front-Mounted Terminal of the Junction Panel JP-0410
12.2. AC Power Supply Connections
The power supply circuit of an emergency broadcast system must be a dedicated circuit, and the circuit
breaker after a branch point must be marked with the indication of the dedicated power supply.
Memo
About ZNR GND. (This memo also applies to the Expansion Junction Panel JP-039.)
ZNR GND is a dedicated grounding terminal for the speaker line surge absorber. By placing a shorting piece,
the surge absorber is grounded. Do not move the shorting piece except when conducting dielectric strength
and insulation resistance tests (p. 45).
B B
B
Low-voltage indoor
AC trunk line
Dedicated power
supply for emergency
broadcast system
Power supply for
general applications
B B
B
Low-voltage indoor
AC trunk line
Dedicated power
supply for emergency
broadcast system
Power supply for
general applications
JP-0410 (L version) JP-0410 (H version)
Service outlet
AC power is always supplied.
(Up to 100 VA)
Shorting piece
for ZNR GND
Shorting piece
for ZNR GND
front panel front panel