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Connections
iCANnet wiring
Cable connections to the iCANnet network are made to
a removable 5-way connector block located at one end
of the SI-2 unit:
+12V
CAN-H
DRAIN
(red)
(white)
(gray)
+12V
CAN-H
DRAIN
(orange
(Blue/
(Brown
pair)
white)
pair)
Cable type:
Maximum cable length: 1000 ft. (305 m) *
Devices per segment:
* A maximum segment distance of 3200 ft. (1000 m) is possible if an
additional 12V power supply is used.
iCANnet announce button
The SI-2 unit features a small button adjacent to the
green connector which can be used to add the device to
an iCANnet network. When pressed, the SI-2 will send
an announcement message across the iCANnet net-
work. Please see the section 'Adding the SI-2 to
iCANsoft' for more details.
P3
CAN-L
0V
(blue)
(black)
Cooper
LC cable
CAT 5
cable
CAN-L
0V
(Blue)
(Green
pair)
Cooper LC or CAT 5
100 (without bridge or repeater)
iCANnet termination
The iCANnet link is a 'daisy chain' protocol that requires
termination on the devices located at either end of the
iCANnet chain.
iCAN
iCAN
Device
Device
The SI-2 unit is supplied with termination enabled as
standard. If it is not connected as an end device in the
iCANnet chain, you need to disable termination.
Note: The connection to the serial device is treated
separately and has no impact on whether or not the SI-2
should be terminated.
To disable SI-2 termination, move the jumper from the
lower two pins to the upper two pins, as shown here:
Termination off
Termination on
SI-2
Serial
Device
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