Toa FS-970 SERIES - Manual (Page 43)

Total speaker line wattage
Under 24 W
25-40 W
41-80 W
81-120 W
121-160 W
161-200 W
43
12.3. Speaker Connections
Connect speaker cables to terminals R,N, and C, as shown below. (The R wire may be omitted when no
attenuator is used.) When Expansion Junction Panel JP-039 is additionally used, make connections in like
manner.
Notes
• The maximum connectable speaker wattage per line is 200 W. When exceeding 200 W, divide the line into
two or more groups.
• Connect speaker cables so that the total of rated inputs of every five speaker lines (1-5, 6-10, etc.) is less
than 1 kW.
The junction panel is fitted at the factory with 0.5 A fuses for speaker line protection. Depending upon the
speaker line wattage to be used, these may have to be replaced with other values of optionally available
fuses. When replacing, be sure to use a specified type fuse set (10 fuses per set, option).
Fuse current capacity
0.3A
0.5A
1.0A
1.5A
2.0A
2.5A
Fuse set model No.
F-0.3A10
F-0.5A10
F-1A10
F-1.5A10
F-2A10
F-2.5A10
• Connections between speaker and attenuator
Speaker line No. 1
Speaker line No. 10
N1 R1 C1
N10 R10 C10
JP-0410 front panel
N R COM
Attenuator
C
H
N R COM
Attenuator
C
H
To other speakers
Normal (N)
Emergency (R)
Common (C)
Black
Red
White
No attenuator Attenuator used Attenuated speaker