Manual

EdgeAccess Universal Chassis System
Model 1202 CIM User Manual
2-2
All modules in the chassis supply their alarm status to the alarm relay contacts on the CIM. You
can connect an external device to the terminal to provide alarm information to a person or an
environment away from the chassis.
6. Connect devices to collect alarm information for Major and Minor alarms. The alarm
contacts are located on the front panel; see Figure 2. The relay alarm contacts provide both
normally open and normally closed contacts for each port:
• NO The contacts are open for normal operation and closed in a fault condition
• COM The electrical common
• NC The contacts are closed for normal operation and open in a fault condition
2.3 Front Panel Controls
The front panel of the CIM includes four LEDs that show current status, contacts for alarm
outputs, and an Alarm Acknowledgment pushbutton.
2.3.1 LEDs
Figure 2 shows the four LEDs on the front panel; Table 1 describes them.
Table 1. Front Panel LEDs
LED State Definition
CLK (Clock) Green This CIM is providing the active clock source for the management bus
Off This CIM is not the clock source
STA (Status) Green Normal operation
Amber This alarm relay is latched with a major and/or minor alarm
Red Fault in the CIM
MAJ (Major) OFF No major alarms
Red A major alarm in the CIM or the chassis
MIN (Minor) OFF No minor alarms
Amber A minor alarm in the CIM or the chassis
Note: When an alarm occurs in a multiple chassis configuration, only the chassis that generates
the alarm shows the amber STA LED.