
127
B
UILDING
M
ANAGEMENT
S
YSTEM
Connecting with outdoor unit and on/off controller
Wiring distance
Maximum 16
outdoor units
1
2
3
f Distance between BACnet Gateway and On/Off controller/outdoor unit
• Distance from the BACnet Gateway to the furthest device cannot exceed 1000m.
•
ⓒ
+
ⓓ
+
ⓔ
d 1000m
f Distance between BACnet Gateway and upper level controller
• Since BACnet Gateway supports 100 Base-T Ethernet, first repeater or upper level controller from the BACnet Gateway
cannot be further than 100m (IEEE 802.3). Therefore, maximum network radius is restricted to 500m.
DMS-Bnet
Network radius
Maximum 15 On/Off controllers or
16 outdoor units can be connected
to 1 channel of the BACnet Gateway
ⓐ ⓑ ⓒ
ⓓ
ⓔ
DMS-Bnet
HUB
Repeater
Maximum number of repeaters = 4
ⓐ
500m
ⓐ ⓑ ⓒ ⓓ ⓔ
ⓐ
,
ⓑ
,
ⓒ
,
ⓓ
,
ⓔ
= 100m
Outdoor unit
Outdoor unit
Outdoor unit
R1R2 R1R2R1R2
BACnet Gateway
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