L-INX User Manual 49 LOYTEC
Version 4.0 LOYTEC electronics GmbH
BACnet MS/TP / Modbus RS-485 Ground
BACnet MS/TP / Modbus RS-485 Non-Inverting
Input
BACnet MS/TP / Modbus RS-485 Inverting Input
Power Supply 12 – 35 VDC or 12 – 24 VAC ± 10 %
Do not connect terminal 17 to earth ground!
Table 7: LINX-20X/21X Terminals.
3.9 Wiring
3.9.1 LINX-10X/11X
The CEA-709 network segment connected to the LINX-10X/11X needs to be terminated
according to the rules found in the specification of the transceiver (see Section 14.1).
Important: When using shielded network cables, only one side of the cable should be connected to
earth ground. Thus, the shield must be connected to earth ground either at the
LINX-10X terminals or somewhere else in the network.
Important: Never connect terminal 17 to earth ground!
Figure 32: Connecting the LINX-10X/11X.
3.9.2 LINX-20X/21X
If BACnet over MS/TP is enabled, the MS/TP network segment must be properly
terminated with an LT-04 network terminator connected at each of the two ends of the
segment media.