Supported field bus integrations include BACnet MS/TP and N2 Bus. The SNE1100x, SNE110Lx, and SNE1050x models come with one field bus connection each and the SNE2200x model features two field bus connections. All models also include an RJ-12 FC Bus connection.
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Connect the 3-wire bus cable to the removable 4-terminal plugs labeled FC
BUS-1 or FC BUS-2 as shown in Figure 1. If you have the SNE2200x with two integrations,
use FC BUS-1 for one network and FC BUS-2 for the other.
Note: The FC Bus terminal blocks on the SNE are blue.Figure 1. FC Bus terminal blocks and wiring connections (SNE22000 shown)
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To add additional field devices, wire from one device to the next in a
daisy-chained fashion as shown in the following figure. Do not connect more than
two wires to each terminal.
Figure 2. Field bus wiring detail: daisy chained devices
Callout
Description
1
Daisy-chained device on FC Bus segment
2
Terminating device on FC Bus segment
3
FC Bus terminal plugs
4
To next device on FC Bus segment
5
From previous device on FC Bus segment
6
Isolated shield connection terminal