GE C30 Instruction Manual page 73

CHAPTER 3: INSTALLATION DIRECT INPUT AND OUTPUT COMMUNICATIONS
Figure 3-45: C37.94SM timing selection switch setting
3
Modules shipped since January 2012 have status LEDs that indicate the status of the DIP switches, as shown in the
following figure.
Figure 3-46: Status LEDs
The clock configuration LED status is as follows:
• Flashing green — loop timing mode while receiving a valid data packet
C30 CONTROLLER SYSTEM – INSTRUCTION MANUAL 3-39