Applies to: Azure Access NOP-IO168, NOP-RI2M, NOP-RI4
Summary
This article explains the LED indicators used in Azure Access NOP-series downstream controllers. LEDs provide visual feedback for system status, communication, input/output activity, faults, and reader signals.
Common LED Indicators
| LED | Description |
| HB (Heartbeat) | Indicates device operational status: Offline: 200ms ON / 800ms OFF Online: 800ms ON / 200ms OFF |
| COM | Flashes on RS-485 data transmission or reception |
| TMP | Cabinet tamper input status: ON = Alarm OFF = Secure Alternates with PFLT when in bootloader |
| PFLT | Power fault input status: ON = Alarm OFF = Secure Alternates with TMP when in bootloader |
| PoE PWR | ON = PoE+ power is active |
| Ethernet (Speed/Link) | Speed (Left): ON = 100 Mbps Link (Right): Flashing = Network activity |
NOTE: All LEDs briefly pulse to the opposite state for 0.1 seconds
every 4 seconds as a status heartbeat.Device-specific Indicators
NOP-IO168
| LED | Description |
| IN1–IN16 | Input status: ON = Alarm OFF = Secure Flash = Fault |
| K1–K8 | Output relay status: ON = Energized OFF = De-energized |
NOP-RI2M
| LED | Description |
| IN1–IN6 | Supervised input statuses |
| K1–K4 | Relay status indicators |
| RDR1–RDR4 | Reader Port LEDs RS-485 (OSDP): Flashes when communicating TTL: Flashes on card swipe (Wiegand/Clock-Data) |
NOP-RI4
| LED | Description |
| IN1–IN12 | Supervised input statuses |
| K1–K8 | Relay status indicators |
| RDR1–RDR4 | Reader Port LEDs RS-485 (OSDP): Flashes when communicating TTL: Flashes on card swipe (Wiegand/Clock-Data) |
Comments
0 comments
Article is closed for comments.