126
• Control systems
• intelligent Touch Manager • ED721208
Wiring Length
• Total length must be 2000m or less. (The total wiring length is 1500m when shielded wire use.)
• Max. length must be 1000m or less.
[Example]
200m
100m
500m
10m
10m
200m
Recommendation of Installation DIII-NET Expander Adaptor
Intelligent buildings in recent years have increased in the amount of communication equipment and power supply wiring and this may
have an effect on DIII-NET communications. In the cases listed below, it is recommended that the “DIII-NET Expander Adaptor” (DTA109A51)
be installed.
• Where there are 8 or more outdoor unit systems
• Where it is not possible to verify that restrictions on DIII-NET wiring length, branched wiring and wire types are observed
Wiring Specifications of DIII-NET
Be sure to use either 2-core sheathed vinyl cord or cable as mentioned below.
• Vinyl cab tire round cord
VCTF
JISC3306
<Example>Section of cord
• Vinyl insulated, vinyl sheathed cable for control CVV
JISC3401
• Round vinyl sheathed cable for control
CVS
JISC3401
• Round vinyl insulated, vinyl sheathed cable
VVR
JISC3342
• 600V vinyl cab tire cable
VCT
JISC3312
• Polyethylene insulated vinyl sheathed cable
CPEV(
★
)
• Mesh insulated cable
MVVS(
★
)
★
When the shield wire is used, be sure to ground the one side of the shield wire.
★
Do not use the shield wire with other type of wire in the same system.
• The total wiring length is 1500m when shielded wire is used.
Outdoor unit
Outdoor unit
Centralized
Control
Equipment
Total length
200+100+500+10+10+200
= 1020m
Total length ≤ 2000m
Max. length ≤ 1000m
Therefore, the limitations on
length are satisfied.
Max. length
200+10+10+500
= 720m
Electrical wire
Insulation
Sheath
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