Networking Openbas-Lc-Nx12R Controllers Together; X1 And X2 Ports; Figure 21 Networking With The X1 And X2 Ports - Mircom OpenBAS-LC-NX12R Installation Manual

4.8

Networking OpenBAS-LC-NX12R Controllers together

Up to 4 OpenBAS-LC-NX12R controllers can be networked together, providing a total of 48
zones.
There are 2 options for networking: X1 and X2 ports, or RS-485.

4.8.1 X1 and X2 Ports

The OpenBAS-LC-NX12R controller comes with a cable for connecting it to another
OpenBAS-LC-NX12R controller using the X1 and X2 ports. Use the X1 and X2 ports when the
maximum distance between the controllers is 1 m (3 feet).
Figure 21 shows 3 OpenBAS-LC-NX12R controllers networked with the X1 and X2 ports. The
first controller is the master and the others are slaves. Only the master controller requires
power.
You can network a maximum of 4 OpenBAS-LC-NX12R controllers (1 master and 3 slaves)
with the X1 and X2 ports.
First controller on network
(master)
X2 X1
24V 0V
1 m (3 ft)
Second controller on network
(slave)
X2 X1

Figure 21 Networking with the X1 and X2 ports

Third controller on network
(slave)
X2
1 m (3 ft)
Field wiring
X1
31 (40)