The LED indicator’s monitoring working state of
SW4485 HUB can fully simplify resolution of fault.
Detailed states of each indicator are shown in the
following table:
System Indication LED
LED
state
Description
PWR
on
Power is being supplied/
working well
off
Power is not being supplied/
not working well
TXD
blinking
Data is being transmitted
off
No data is being transmitted
RXD
blinking
Data is being received
off
No data is being received
E1~E4
on
Power is on the device, the
corresponding interface of
D1~D4 is on the state of data
receive/transmit
blinking
The corresponding interface
of D1~D4 is transmitting/
receiving data
off
Fault alarm: Power is not on
the device or power is on the
device but the corresponding
interface of D1~D4 is
reversed
【
Installation
】
To confirm the device’s working environment
before installation: the supply voltage, the installation
space,
the installation method, etc. Please confirm the
following installation requirements carefully:
◎
Check installation needed cables and
connectors
◎
Based on reasonable configuration
requirements, check the cable is in
place(less than 100m)
◎
Product does not provide installation
components, users need to prepare them
according to the selected type: screws,
nuts and tools to ensure reliable
installation.
◎
Power: 5VDC
◎
Environment:
Working Temperature: -40~85
℃
Humidity: 5%~95%
◎
Installation Type: Wall-mount and
Panel-mount
Cable Laying
Cable laying should meet the following conditions:
◎
Check all cable specifications, models and
quantity meet the demand or not before cable
laying.
◎
Check the cable is damaged or not , whether
has factory leaving record and quality
assurance or other quality certificate.
◎
Required laying cables’ specifications,
quantity, direction, laying position are adhere
to construction requirements, laying length
should be based on the actual location.
◎
The laying cable do not have broken line or
connector in the middle
◎
Cables should be straight int the aisle neatly
inside, turning uniform, smooth and flat.
◎
Cable in the channel should be straight, not
beyond the channel in order to avoid shelter
other inlet and outlet holes, cable out of the
groove part or cable bend part should be
bundled and fixed.
◎
User cables and power cord lay separately.
Cable, power cord, ground lay in the same
channel can not be folded or blended. If the
cable is too long, it must be placed in the
middle of the cable frame regularly rather
than pressed on other cables.
◎
The end of the cable should be labeled
appropriately, and the identify
content
must be clear and concise to have convenient
maintenance.
【
Specifications
】
Communication Parameter
Interface Protocol: meet EIARS-2332/485
agreement