Key the backplane connector, Install the field wiring arm – Rockwell Automation 1771-OQ/B Isolated 24V dc Output Module Installation Instructions User Manual
Page 5

Publication 1771-IN081B-EN-P - June 2004
Isolated 24V dc Output Module 5
Key the Backplane
Connector
Place your module in any slot in the chassis except the leftmost slot which is
reserved for processors or adapters.
Install the Field Wiring Arm
Position the keying bands in the backplane connectors to
correspond to the key slots on the module.
Place the keying bands:
- between 2 and 4
- between 10 and 12
Y ou can change the position of these bands if
subsequent system design and rewiring makes
insertion of a different type of module necessary.
.
Upper
Connector
11022-I
I/O chassis
Observe the following precautions when in-
serting or removing keys:
• insert or remove keys with your
fingers
• make sure that key placement is
correct
Incorrect keying or the use of a tool can
result in damage to the backplane connector
and possible system faults.
ATTENTION
ATTENTION
Remove power from the 1771 I/O chassis backplane and
field wiring arm before removing or installing the I/O
module. Failure to remove power from the backplane or
wiring arm could cause:
• module damage, degradation of performance, or
injury.
• injury or equipment damage due to possible
unexpected operation.
Place the module in the card guides on the top and bottom of the
chassis that guide the module into position.
Important:
Apply firm even pressure on the module to seat it
into its backplane connector .
1
1771-A1B, -A2B, -A3B, -A4B I/O chassis
Snap the chassis latch over
the top of the module to
secure it.
Swing the chassis locking bar
down into place to secure the
modules. Make sure the
locking pins engage.
1771-A1B, -A2B, -A4B Series B I/O chassis