User Interface
AS-P Server LEDs
There are several LEDs on the front panel of an AS-P server.
The AS-P server comes in different models. The AS-P and AS-P-S models have nine LEDs whereas the AS-P-NL and AS-P-NLS models have seven LEDs.
Function | Color |
RS-485 A, Tx | Yellow |
RS-485 A, Rx | Green |
RS-485 B, Tx | Yellow |
RS-485 B, Rx | Green |
Ethernet 1, Link/Act/Speed | Green/Yellow |
Ethernet 2, Link/Act/Speed | Green/Yellow |
LON, Txa | Yellow |
LON, Mode a | Red |
Status (AS-P server) | Green/Red |
- The AS-P server models AS-P-NL and AS-P-NLS do not have LEDs for LonWorks (LON).
The AS-P server Ethernet and Status indicators comprise two LEDs (green/yellow and green/red respectively) in one structure. Normally, when one LED is lit, the other is not lit and vice versa, that is, the indicator will show one color at a time.
The LEDs indicate status of the AS-P server and the ongoing communication.
Status LED
The AS-P and AS-B server Status LED indicates the condition of the device.
LED Patterns | Condition |
Green, constant | Normal operation, status OK |
Green, flashing (~1 Hz) | Device restarting, wait |
Green, flashing (~10 Hz) | Device shutting down |
Red, constant | Detected error, attention required |
Red, flashing (~1 Hz) | Device operates, but a problem needs attention |
Red/green, flashing (~1 Hz) | Device firmware upgrade (DFU) mode or firmware being downloaded in DFU mode |
No light | No input power |
RS-485 LEDs
The RS-485 (COM A and COM B) LEDs indicate the condition of the RS-485 communication.
LED Patterns | Condition |
Yellow, flashing (Tx) | Transmit data |
Green, flashing (Rx) | Receive data |
Ethernet LEDs
The Ethernet (1 and 2) LEDs indicate the condition of the Ethernet communication.
LED Patterns | Condition |
Green, flashing | 10 Mbit communication |
Yellow, flashing | 100 Mbit communication |
LON LEDs
The LON LEDs indicate the condition of the LonWorks RS-485 communication.
LED Patterns | Condition |
Yellow, flashing (Tx) | LON communication RS-485 |
Red, short flash (Mode) | During start-up; otherwise for future use |
The AS-P server models AS-P-NL and AS-P-NLS do not have LonWorks (LON) LEDs.
AS-P Servers
Status LEDs