XIO USER MANUAL | 2106424MNAB | 29
3.4.3 Mounting when using an enclosure
The XCORE enclosure has tags for wall-mounting (Figure 3-1). Mount the enclosure per field
specifications. The XIO is usually already mounted on an internal DIN rail inside the enclosure.
To us e non-ABB enclosures, follow the vendor’s mounting instructions. The DIN rail can be installed on a
wall or in an enclosure that meets the environmental ratings for that location. It is recommended that 4
inches of clearance be available above and below the device, and 1 inch to the left and right of the XIO, or
the XIO and any TFIOs connected.
Figure 3-1: XCORE enclosure top mounting tabs and interior view
3.4.4 Wire serial communication ports
Wire the XIO serial communication (COM) ports to communicate with and power external devices. Wire for
communication according to the type of serial interface with the external device. Wire for power if there is
no external supply powering the external device.
: The maximum amount of current draw is 5A for all connected devices
(XIO/RMC, TFIO modules, and auxiliary field wired equipment)
.
This section provides wire length specifications per serial interface type, tables for port pinouts and
generic instructions for field wiring. There are also two examples of serial communication in the following
table.
Table 3-1: Serial communications specifications
type
length
Removable Terminal connector (8 POS), spring-cage
termination. Wire Gauge 16 AWG to 24 AWG. Use
ferrules without insulating collar, according to DIN
46228‑1 as specified in
Tab le 3-2.
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