Shenzhen ITLONG Intelligent Technology CO. LTD HLD-DT-A Manual Do Utilizador
36
Chapter 6 Cautions
1. Elevator control system using RS485 communication networking, in
order to ensure the quality of communication, requiring networking
using two-core shielded twisted-pair cable RVSP2 * 0.75mm2,
communication cable should be away from strong power to prevent
interference with the same system using the same model, the max
communication distance up to 1200 meters.。
2.If the laying of network cable length more than 1200 meters, it needs
to increase the relay signal amplifier or increase the diameter.
3.In order to guarantee the communication quality, when the system
interconnects, it is required that the ground wire between the controller
and the controller pass through the shielding grid and be connected
together.
Network communication cables
Model
Function
Wiring route
Remarks
RVSP2*0.75mm
2
Linked to
computer
From Controller to
the machine room
No need for
offline work
RVSP2*0.75mm
2
Linked to
computer
From machine
room to
management center
Intercom linkage Wiring
Model
Functions
Wiring Route
Remarks
RVSP2*0.75mm
2
Linked to computer
From Controller to
the machine room
No need for
offline work
RVSP2*0.75mm
2
Linked to computer
From machine
room to
management center
RVSP2*0.75mm
2
Communication
From Controller to