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„ MAXIMUM CONNECTION OF NETWORK SEGMENT
„
z Network segment : divided network by signal amplifier
„
● In the following case, signal amplifier is required.
„
(1) When the total length of the transmission line exceeds 500 m.
(2) When the number of total unit*1 exceed over 64 units.
● When a signal amplifier is installed, network is divided into two network segments.
„
Network segments mean divided block which has been connected with signal amplifier within
above condition.
In a network segment(NS), divided by a signal amplifier, have to keep the following limitation.
Segment inside
Transmission line
Number of unit *1 (See the next page)
Terminal resistor
1
26
34
Signal
Amplifier
1
63
1
64
Signal
Amplifier
64
1
z Caution
„
VRF network system should keep both of number of unit and wiring length.
When system exceeds either number of unit or wiring length, system should be devided.
Different VRF series may not coexist within the same network.
2
3
4
27
28
29
2
3
4
2
3
4
2
3
4
- (06 - 07) -
Limitation
500m or less
64 or less
1
5
6
Transmission line : within 500m
30
31
32
62
Signal
Amplifier
64
62
63
5
62
25
Network
segment 1
33
Network
64units
segment 2
Network
64units
segment 3
Network
64units
63
segment 4
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