Rockwell Automation 2755 Enhanced Decoder Series B - Manual (Page 59)

4–20 Installing the Decoder
Publication 2755-833
The bottom of the decoder has two holes for I/O module field wiring.
The
7 /
8
inch holes accept standard 1 /
2
inch conduit fittings or NEMA
4 Conduit Hubs, or the 2755-NB0 NEMA 4 Connector Kit. The
NEMA 4 connector can be used with either NEMA 1 or NEMA 4
decoders. Figure 4.12 shows the location of the holes in the bottom
of the enclosure.
Figure 4.12 Connecting I/O to external devices
Connect I/O Devices using:
Two Catalog No. 2755-NB0
7/8 inch holes for 1/2 inch conduit
I/O Module Field Wiring Holes
Switch and Power
Connector Area
Switch and Power
Connector Area
NEMA 4 Connector Kits
See the next section for details on how to install conduit hubs in the
I/O module field wiring holes. Use the 2755-NB0 Connector Kit or
the 1490-N1 conduit hubs in the NEMA Type 4 decoder to maintain
the environmental rating.
Figure 4.13 shows how the factory installed NEMA Type 4
Connectors are pre-wired to the I/O module locations. Below each
output module is a terminal block connector which accepts up to 12
gauge wire.
Connecting I/O Modules to
External Devices
Wiring I/O Modules