Spectrum Controls 1771sc-IMI16 - Manual (Page 3)

Power Supply Requirements Your module receives its power from the chassis power supply through the
1771 I/0 chassis backplane. The module requires 100 mA, maximum, from the
output of this supply. Add this to the requirements of all other modules in the
I/O chassis to prevent overloading of the chassis backplane and/or backplane
power supply.
Installing The Module In this section, we tell you how to key your I/O chassis, install your module,
and connect your wiring.
Keying Your I/O Chassis
Use the plastic keying bands, shipped with each I/O chassis, to key the I/O slots
to accept only this type of module.
The module circuit board is slotted in three places on the rear edge. The position
of the keying bands on the backplane connector must correspond to these slots
in order to insert your module. You can key any connector in an I/0 chassis to
receive this module except for the left-most connector, which is reserved for
adapter or processor modules.
Place keying bands between the following numbers labeled on the backplane
connector:
• Between 2 and 4
• Between 12 and 14
You can change the position of these keys if system redesign and rewiring
makes inserting a different module necessary.
Installing The Module In Your Chassis
To install the 1771sc-IMI16 in your 1771 I/0 chassis, follow these steps:
WARNING
POSSIBLE EQUIPMENT DAMAGE AND OPERATION
Always remove power from the 1771 I/0 chassis backplane and wiring arm
before removing or installing an I/O module.
¥ Failure to remove power from the backplane or wiring arm can cause module
damage, degraded performance, or injury.
¥ Failure to remove power from the backplane can also cause injury or equipment
damage due to possible unexpected operation.
Installation Data
AC/DC (220/240 V) Input Module
Cat. No. 1771sc-IMI16
3
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