Fujitsu Airstage J-II Series - Page 607

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WIRING RULES
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In the following cases, Signal Amplier is required.
1) When the total length of the transmission line exceeded 1,640 ft. (500 m)
AB+BC+BD+DE+EF > 1,640 ft. (500 m) (Fig. 1)
2) When the total number of units *1 is over 64.
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Transmission line length between each unit*1 : MAX 1,312 ft.(400 m)
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Total transmission line length: MAX 11,811 ft. (3,600 m)
AB+BC+BD+DE+EF+EG+GH < 11,811 ft. (3,600 m) (Fig. 2)
A
B
C
D
E
F
A
B
C
D
NS 1
NS 2
NS 4
NS 3
E
F
G
H
Transmission line
Transmission line
System
Controller
System
Controller
Touch
Panel
Controller
Touch
Panel
Controller
Signal Amplier
Outdoor unit
Outdoor unit
Fig. 2Fig. 1
Indoor unit
Indoor unit
Terminal
resistor
Terminal
resistor
Terminal resistor
When AB+BC+BD+DE+EF>1,640 ft.
(500 m) :Signal Amplier is required.
*1: Refer detail Meaning of unit on 1-2 VRF NETWORK SYSTEM.
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SYSTEM DESIGN SYSTEM DESIGN