2.9 Status LEDs
2.9.1 Power-up
All LEDs are OFF.
2.9.2 Initialization
Once power is applied, initialization of the module begins.
When initialization is completed, LEDs A through R2 are briefly sequenced ON then OFF.
2.9.3 Run time
After the above sequence, the LEDs have the following meanings:
LED
Description
A LED
heartbeat and
on-line status
Off-line: 1 sec rate, 20% ON
On-line: Non-encrypted communication: 1 sec rate, 80% ON Encrypted communication: .1 sec ON, .1
sec OFF, .1 sec ON, .1 sec OFF, .1 sec ON, .1 sec OFF, .1 sec ON, .3 sec OFF
A LED
Error Indication: Waiting for application firmware to be downloaded: .1 sec ON, .1 sec OFF.
B LED
SIO Communication Port Status: Indicates communication activity on the SIO communication port
1 LED
Input Status: IN1
2 LED
Input Status: IN2
3 LED
Input Status: IN3
4 LED
Input Status: IN4
5 LED
Input Status: IN5
6 LED
Input Status: IN6
7 LED
Input Status: IN7
8 LED
Input Status: IN8
TMP
Cabinet tamper
PFL
Power fault
Input in the inactive state: OFF (briefly flashes ON every 3 seconds), Input in the active state: ON
(briefly flashes OFF every 3 seconds), Input in a trouble state: Rapid Flash.
R1 LED
Reader port 1:
Clock/Data Mode: Flashes when data is received, either input
D1/D0 Mode: Flashes when data is received, either input
RS-485 Mode: Flashes when transmitting dataF/2F Mode: Flashes when data/acknowledgment is
received
R2 LED
Reader port 2:
Clock/Data Mode: Flashes when data is received, either input
D1/D0 Mode: Flashes when data is received, either input
RS-485 Mode: Flashes when transmitting dataF/2F Mode: Flashes when data/acknowledgment is
received
K1 through
K6 LEDs
Illuminates when output relay RLY 1 (K1) through RLY 6 (K6) is energized.
Every three seconds, LEDs A through R2 are pulsed to their opposite state for 0.1 sec.
PLT-05248, A.2
13
June 2021
Powering
Trusted Identities
HID Mercury™ MR52-S3 Reader Interface
Installation and Specifications
