i-Vu Open Link
7
4
Turn on the i-Vu Open Link's power.
For...
Use i-Vu Open Link
port...
Wire Carrier
terminal...
...to third-
party device
terminal
EIA-232
Set the port's
jumper(s) on i-Vu
Open Link
S2
TX
Rx
Signal Ground
Rx
Tx
Gnd
EIA-232
EIA-485,
2-wire
S2
Net+
Net-
+
-
EIA-485
2-wire
NOTES
•
If you cannot determine the media type or connections of the third-party device, contact your third-party
representative.
•
Use the same polarity throughout the network segment.
•
Repeaters are required for more than 31 devices. See your third-party device manufacturer's
recommendations.
•
To reduce communication and data errors, terminate each end of an EIA-485 network with a resistor
whose value equals the network's characteristic impedance. Some third-party manufacturers provide a
built-in resistor that you enable or disable with a jumper. Make sure that only devices at the end of a
network have termination enabled.
EXAMPLE
If an EIA-485 2-wire network's characteristic impedance is 120 Ohms, terminate one pair by
placing a 120 Ohm resistor across the
Net+
and
NET-
connectors of the i-Vu Open Link. Terminate the
other pair by placing a 120 Ohm resistor across the
+
and
-
connectors of the furthest third-party
controller.
•
A solid receive light on the i-Vu Open Link indicates a wiring or polarity problem.
Addressing the i-Vu Open Link
i-Vu Open Control hardware, when used in conjunction with i-Vu Open routers (i-Vu Open Link and i-Vu Open
Router), has a convenient feature of automatic addressing. To address the i-Vu Open Link for third-party
integration, using i-Vu/Field Assistant, go to
Driver Properties
>
Protocols
>
Properties
tab. Refer to the
appropriate protocol
Integration Guide
for further details.
The i-Vu Open Link needs two addresses, one for the Open network and one for the IP Network.
