GE B30 UR Series Instruction Manual page 90

3.3 DIRECT INPUT AND OUTPUT COMMUNICATIONS 3 HARDWARE
Figure 3–44: C37.94SM TIMING SELECTION SWITCH SETTING
Modules shipped since January 2012 have status LEDs that indicate the status of the DIP switches, as shown in the follow-
ing figure.
Figure 3–45: STATUS LEDS
The clock configuration LED status is as follows:
• Flashing green — loop timing mode while receiving a valid data packet
3-42 B30 Bus Differential System GE Multilin