3 Features and benets
Control support devices
TCGB0106 rev.0 - 12/2014
5151
3
3.5.3 PC-A1IO
This product allows the integration of certain equipment to H-LINK bus, giving the chance to monitor and control certain
parameters of non-HITACHI equipment by HITACHI CSNET WEB.
PC-A1IO: H-LINK system integration device
• This application is open to control this equipment and other devices/accessories that are compatible with the control
specication of PC-A1IO.
• All the devices connected to PC-A1IO are managed as normal HITACHI Indoor Unit in current HITACHI Central Con-
trols.
• PC-A1IO is compatible with H-LINK 2 while maintaining full compatibility with H-LINK 1 units.
• Up to 16 PC-A1IO can be connected in an H-LINK line. At least one of this PC-A1IO must be set as master.
• A PC-A1IO set as master uses two addresses, one as an Outdoor Unit and one as a Indoor Unit. In this case, PC-A1IO
is counted as two H-LINK devices.
3.5.4 PSC-5HR
The maximum H-LINK electrical wiring length is 1,000 m. However, there are cases where a longer H-LINK electrical wir-
ing length is required. For this cases there is available the PSC-5HR accessory. The PSC-5HR is an H-LINK relay that
re-sends the H-LINK messages that receives.
PSC-5HR: H-LINK relay
• Adding one PSC-5HR, a length of 1000 extra meters of H-LINK wiring is available.
• Up to 4 PSC-5HR can be connected, allowing 5000 meters in total.
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