- TMS370 Microcontroller/Gang Programmer User's Guide

Microcontroller Programmer Overview and Description
1-3
The base unit of the programmer contains two LEDs. The red LED is marked
program or device power and is lit whenever power is applied to device
sockets. The green LED is marked
power and indicates that the base is turned
on. This LED should turn on approximately three seconds after power is
supplied to the programmer.
Do not insert or remove devices from the programmer while the red
program (device power) LED is lit!
On the front edge of the programmer base is a black banana plug receptacle.
This is attached to the safety ground of the power cord in order to assist you
in connecting to electrostatic protection equipment.