15
Item
Silk-screen
Name
Description
G
DO1~DO4
Digital output
Relay output interface. The
specification
of
the
relay:
250Vac/1A or 30V/1A
H
PT1, PT2, AI1~AI4
Analog input
Reserved function
I
A1B1 - A6B6
RS485
communication
port
Supports 6-input RS485; can be
connected to the slave devices
or the background
J
CAN
CAN
communication
port
Reserved function
K
24V
DC24V
power
supply port
Current
≤ 2.0A
L
AC(110~240V)
AC power supply
port
Connects to 110~240Vac
(50/60Hz), current
≤ 0.5A
M
GPS/BDS
GPS
antenna
port
Used for time service and
positioning
N
RF
Wireless
antenna port
Reserved function
O
Grounding port
Connects to protective earthing
P
L1, L2
Reserve
Reserve
Digital input and output ports (DIN, DO1
– DO4) are used to control the
node data collection and node communication control.
GPS antenna should be installed outdoors. The corresponding port
(GPS/BDS) is used for time calibration and positioning.
It calibrates the time of the Logger3000 itself
It outputs the positioning info through communication.
GPS antenna does not support hot plug. Power down of the Logger3000
is required during installation.
The max. communication distance of COM1
– COM6 (A1B1 – A6B6) is
no more than 1000m.
