Sierra Monitor Corporation HRG015-W User Manual
Page 34
HRX-OM-J049-A
Chapter 3 Transport and Installation
3.2 Installation
HRG010-W HRG015-W
1st edition : Aug. 2006
Rev. A: May. 2007
3-12
Procedures for communication cable wiring installation (RS485)
HRG010-W-C / HRG015-W-C (communication feature-laden option)
The communication cables are to adhere to specifications shown below.
Table 3-3 Communication Cable
Item
Specifications
Size
Shielded twisted-pair wire (0.75mm
2
)
Communication cable
Y-shaped crimp contact size
1.25Y-3
1.
Connect the power cables properly, as shown below.
2.
Have the converters listed below available. Establish connection with the computer (with a
RS232C terminal).
Table 3-4 Converter (Example)
Item
Specifications
RS232C
⇔ RS485 converter
Part number: KS-485
Manufacturer: System Sacom
Connecting connector
D-sub 9-pin (male)
Computer
⇔ Converter coupling cable
Part number:AR-305
Manufacturer: Arvel
Fig. 3-11 Communication Cable Wiring
Signal cable access
(communication cable access)
Communication cable
Front