General Diagnostic Features; Section 1.2 System Overview - Spectrum Controls 1769 Series User Manual

Section 1.2
System Overview
User's Manual Pub. 0300244-01 Rev. A
The illustration below shows the module's hardware features.
Item Description
1 Bus lever
2a Upper panel mounting tab
2b Lower panel mounting tab
3 Module status LED
4 Module door with terminal identification label
5a Movable bus connector (bus interface) with female pins
5b Stationary bus connector (bus interface) with male pins
6 Nameplate label
7a Upper tongue-and-groove slots
7b Lower tongue-and-groove slots
8a Upper DIN rail latch
8b Lower DIN rail latch
9 Write-on label for user identification tags
10 Removable terminal block (RTB) with finger-safe cover
10a RTB upper retaining screw
10b RTB lower retaining screw
11 CJC sensors

1.1.5 General Diagnostic Features

The module contains a diagnostic LED that helps you identify the source of problems that
may occur during power-up or during normal channel operation. The LED indicates both
status and power. Power-up and channel diagnostics are explained in Chapter 5,
Diagnostics and Troubleshooting.
The modules communicate to the controller through the bus interface. The modules also
receive 5 and 24V dc power through the bus interface.
Chapter 1: Module Overview 1-3