Spectrum Controls 1746sc-OAP8I - Manual (Page 15)

Installation Instructions
Isolated-Circuit
Discrete Input and Output Modules
13
!
1.Turn off power to the I/O chassis.
2.Align the circuit board of your module
with the card guides at the top and
bottom of the chassis
3.Slide your module into the chassis until
both top and bottom retaining clips are
secure. Apply firm even pressure on
your module to attach it to its
backplane connector. Never force your
module into the slot.
Cover all unused slots with the Card Slot Filler, Allen-Bradley part 1746-N2.
To remove your module, follow these steps:
1. Turn off power to the I/O chassis.
2. Remove the terminal block or field device wiring if necessary.
3. Press the retaining clips at the top and bottom of your module.
Note that the components on the circuit board may get very hot:
• 1746sc-IB8I & -IC8I 120
°
C (UL temperature code T4A)
• 1746sc-IM8I 135
°
C (UL temperature code T4)
• 1746sc-OAP8I 100
°
C (UL temperature code T5)
CAUTION
HOT COMPONENTS
When removing the 1746sc-IM8I or -OAP8I after use, avoid touching any of
the components on its printed circuit board.
Failure to observe this precaution can cause personal injury.