Electrical Wiring - Hitachi PC-ARF Technical Catalogue

7 Gateways for building management systems
HC-A(8/64)MB
Units Id Configuration
• Automatic address can be done by pushing
• Manual address configuration can be done by the assignation of each Id to a specific H-LINK address
Outdoor unit address (Ou) and Indoor unit address (Iu)
-
• Confirm the configuration by pressing
• Refresh button shall be pressed when modify the units connected to the net

7.1.3 Electrical wiring

Name Connection
X1 Power supply (1)
X3 Ethernet (1)
X4 H-LINK (1)
X5 RS485 (1)
X6 USB (1)
N O T E
(1): These cables must be field supplied.

DIP switch setting
Factory
Name Function
SW1 Configuration
632 632
TCGB0106 rev.0 - 12/2014
Use 0.75 mm wires which are not lighter than the polychloroprene sheathed flexible cord (code
2
designation 60245 IEC 57)
Category 5 or higher LAN cables
PC connection: Use a crossed cable (1 cable set available in Net configuration Kit, model code
7E513206) for direct connection.
LAN connection: Use a direct cable (field-supplied) for connection to a commercial distributor (Hub).
Twisted pair shielded cable 0.75 mm².
Shield must be grounded in one side only.
3 cores cable harness 0.75 mm² grounded in one side only. Use different colour for each cable.
USB Mini-B plug cable (1 cable set available in Net configuration Kit, model code 7E513206)
Description
setting
SW1-1: Modbus end resistance.
SW1-2: Not used (keep always "ON")
Cable specification