1.9 Electric Wiring 211
Interface for Use in BACnet
®
6. Connection to Public Telephone Line
1P191170C
Connect to the telephone line in order to monitor the air-conditioner via AIRNET service.
Connect to modular cable from the public telephone line to the upper connector with a stamping of LINE,
and connect the modular cable of the telephone to the lower connector with a stamping of PHONE,
as shown in the sketch below.
LINEPHONE
DMS502B51
Cautions for wiring
1. Don't clamp these cables together with high voltage cables. Failure to observe this instruction would cause control error.
2. When using AIRNET service, it is necessary to use a separate modem specified by us and enter into
Maintenance Agreement with charge.
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