HID Mercury LP4502 User Manual

2.10 Status LEDs
2.10.1 Power-up
All LEDs are OFF.
2.10.2 Initialization
After power is applied or reset switch pushed, LED 1 is ON for about 15 seconds, then LEDs 2, 3, 4, 5, 6, R1, R2,
IN1, IN2, IN3, IN4, IN5, IN6, IN7 and IN8 are flashed once at the beginning of initialization. LEDs 3 and 4 is
turned ON for approximately 1 second after the hardware initialization has completed, then the application
code is initialized. The amount of time the application takes to initialize depends on the size of the database,
about 1 second without a card database. Each 10,000 cards will add about 2 seconds to the application
initialization. When LEDs 1, 2, 3 and 4 flash at the same time, data is being read from or written to flash
memory, do not cycle power when in this state. If the sequence stops or repeats, perform the bulk erase
procedure, see Bulk erase configuration memory.
2.10.3 Running
After initialization is complete, the LEDs have the following meanings:
LED Description
1 Off-line / On-line and battery status
Off-line = 20% ON, On-line = 80% ON
Double flash if battery is low
2 Host communication activity (Ethernet)
3 Internal SIO communication activity
4 External SIO communication activity (Port 1)
5 External SIO communication activity (Port 2)
R1 Reader 1: Clock/Data or D1/D0 Mode = Flashes when data is received, either input.
F/2F mode: Flashes when data/acknowledgment is received
RS-485 mode = Flashes when transmitting data
R2 Reader 2: Clock/Data or D1/D0 Mode = Flashes when data is received, either input.
F/2F mode: Flashes when data/acknowledgment is received
RS-485 mode = Flashes when transmitting data
YEL Ethernet speed: OFF = 10Mb/S, ON = 100Mb/S
GRN OFF = No link, ON = Good link, Flashing = Ethernet activity
D16 Ethernet activity
IN1 Input IN1 status: OFF = Inactive, ON = Active, Flash = Fault
1
IN2 Input IN2 status: OFF = Inactive, ON = Active, Flash = Fault
1
IN3 Input IN3 status: OFF = Inactive, ON = Active, Flash = Fault
1
IN4 Input IN4 status: OFF = Inactive, ON = Active, Flash = Fault
1
IN5 Input IN5 status: OFF = Inactive, ON = Active, Flash = Fault
1
IN6 Input IN6 status: OFF = Inactive, ON = Active, Flash = Fault
1
IN7 Input IN7 status: OFF = Inactive, ON = Active, Flash = Fault
1
PLT-05246, A.4 17 June 2021
Powering
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HIDMercury™ LP4502 Controller
Installation and Specifications

HID Mercury LP4502 Specifications

General

Brand	HID
Model	Mercury LP4502
Category	Controller
Language	English