General Data - Hitachi PC-ARF Technical Catalogue

7 Gateways for building management systems
HC-A(8/64)MB

7.1.2.4 General data


Hardware Specifications
Item
Power supply
Consumption
Outer dimensions
Weight
Assembling conditions
Ambient temperature
Humidity

Communication
RS485
Item
Type
Connector
Communication line
Communication system
Communication method
Baud rate transmission
Length
Ethernet
Item
Type
Connector
Communication line
Communication system
Length
H-LINK
Item
Communication with
Communication line
Communication system
Communication method
Speed of transmission
Length of wiring
Maximum number of gateways
Maximum number of indoor units
627 627
TCGB0106 rev.0 - 12/2014
1~ 230 V ±10% 50 Hz
4.5W (maximum)
Width: 106 mm, Depth: 90 mm, Height: 58 mm
165 g
Indoors (installation inside an enclosure with restricted access by a tool)
0~60 ºC
20~85% (Without condensation)
Modbus RTU
Serial Port RS485 (3 screw terminals)
Shielded twisted pair cable, with third wire (for the common), with polarity.
Half-duplex, multipoint serial connection
Non parity or odd/even parity selection. Data length: 8 bits – 1 stop bit
19200/9600 Baud
Max. 1200 m according EIA-485
Modbus TCP
Ethernet (RJ45)
Two twisted pair cable CAT5 or better (T-568A/T-568B)
Full-duplex
Max. 100 m according IEEE 802.3
Hitachi Air Conditioning series: SET-FREE, UTOPIA and CENTRIFUGAL systems
Twisted pair shielded cable, non-polarity
Half-duplex
Asynchronous
9600 Bauds
1000 m maximum (total length of H-LINK I/O bus)
1 Gateway (HC-A8MB,HC-A64MB)/H-LINK SYSTEM
HC-A64MB → up to 64 indoor units
HC-A8MB → up to 8 indoor units
Specifications
Specifications
Specifications
Specifications
7