TM 5-3895-374-24-1
Chapter 6
Wiring Your I/O
Modules
Using Removable Terminal
Removable Terminal Blocks (RTBs) are provided on all 12-point and 16-point discrete
Blocks (RTB)
I/O modules and analog modules They allow for faster and more convenient wiring of the
I/O modules The modules and RTBs are color-coded as follows:
Color
Type of 1/O Removable Terminal Block
Red
AC Inputs/outputs
Blue
DC inputs/outputs
Orange
relay outputs
Green
specialty modules
Replacement terminal blocks are available if they are lost or damaged See
the replacement part list In chapter 10
Removing RTBs
Below are guidelines for removing the I/O Removable Terminal Block
ATTENTION: Never install or remove I/O modules or terminal
blocks while the SLC is powered
1.
If the I/O module is already installed in the chassis, remove power to the SLC.
2.
Unscrew the upper right and lower left terminal block release screws.
3.
Grasp the RTB with your thumb and forefinger and pull straight out.
4.
Label the RTB with appropriate slot, chassis and module identification.
(page 3-424)
