Important – Rockwell Automation 1790-XXXX Digital Expansion D-Shell CompactBlock LDX I/O User Manual
Page 6

6
Publication 1790-IN003A-EN-P - April 2001
2.
Position the expansion module with proper spacing.
3. Mount the expansion module using panel or DIN rail
mounting, as described in the previous section.
4. Plug the expansion cable into the base and expansion
modules.
5. Replace the expansion covers on all modules.
IMPORTANT
The expansion cable can only be
connected to the modules so that the red
stripe on the cable is on the bottom as
shown below.
CompactBlock LDX
1790-16BVO
X
DC INPUTS
EXPANSION UNIT
16 INPUTS-DCPOWER
0
7
DC OUTPUTS
0
7
CompactBlock LDX
1790-16BVO
X
DC INPUTS
EXPANSION UNIT
16 INPUTS-DCPOWER
0
7
DC OUTPUTS
0
7
Base Module
Expansion Module
95 mm
3.74 in
95 mm
3.74 in
Expansion cover
Expansion cover
41 mm
1.6 in
25 mm
1 in
41 mm
1.6 in
CompactBlock LDX
1790-16BVO
X
DC INPUTS
EXPANSION UNIT
16 INPUTS-DCPOWER
0
7
DC OUTPUTS
0
7
CompactBlock LDX
1790-8BV8V
DC INPUTS
MOD NET
STATUS
8 INPUTS/8OUTPUTS-DC POWER
0
7
DC OUTPUTS
0
7
To install plug, gently pull
and swing cover inward
Red strip must be on bottom
of expansion cable