Table 1: WRG LED designations and operation
LED name Description
FC BUS Off - auto bauding
Blinking - FC Bus active
On - baud rate detected (no token)
ZFR EOL Off - switch OFF
On - switch ON
Note: Should always be set ON.
FC EOL Off - Switch OFF
On - Switch ON
LED test sequence at startup
During startup, the WRG automatically initiates a self test to verify correct operation. Immediately
after you connect the supply power, the following LED lighting sequence occurs:
• The HEARTBEAT LED starts on blue and then blinks between blue and purple during normal
operation.
• The FAULT LED flashes for approximately 30 seconds, then turns off.
• The Wi-Fi LED remains off until you connect the Wi-Fi dongle. When you connect the Wi-
Fi dongle, the corresponding USB LED turns on and the Wi-Fi Activity LED goes on, which
indicates that the WRG Access Point is enabled and is waiting for a device. The WiFi Activity
LED blinks when a device is connected to the access point.
Repair information
If the Wireless Router Gateway fails to operate within its specifications, replace the unit. For a
replacement Wireless Router Gateway, contact the nearest Johnson Controls representative.
Do not open the WRG housing. The WRG has no user-serviceable parts inside.
The WRG requires no periodic field maintenance.
Wireless Router Gateway Installation Guide10
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