Keri Systems EP1502 - Manual (Page 6)

Mercury Security Corporation © 2011 EP1502 DOC 10107-0031 REV 1.05 Page 6
9. Memory and Real Time Clock Backup Battery:
The static RAM and the real time clock are backed up by a lithium battery when input power is removed.
This battery should be replaced annually. If data in the static RAM is determined to be corrupt after
power up, all data, including flash memory, is considered invalid and is erased All configuration data
must be re-downloaded. Remove the insulator from the battery holder after installation. Battery type:
BR2325, BR2330, or CR2330.
10. Status LEDs:
Power-up: All LED's OFF.
Initialization: LED's 1, 2, 3, TMP, FLT, R1, R2, IN1, IN2, IN3, IN4, IN5, IN6, IN7 and IN8 are sequenced
during initialization. LED's 1, 3, and TMP are turned ON for approximately 4 seconds 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 3 seconds without a card database. Each
10,000 cards will add about 3 seconds to the application initialization. When LED's 1, 2, 3 and TMP flash
at the same time, data is being read from or written to flash memory, do not cycle power when in this
state.
Running: After initialization is complete, the LEDs have the following meanings: At power up, LEDs 2
through 6 are turned ON then OFF in sequence.
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 or Serial Port 1)
3 Internal SIO Communication Activity
TMP External SIO Communication Activity
FLT Unassigned
R1 Reader 1: Clock/Data or D1/D0 Mode = Flashes when Data is Received, Either
Input. RS-485 Mode = Flashes when Transmitting Data
R2 Reader 2: Clock/Data or D1/D0 Mode = Flashes when Data is Received, Either
Input. RS-485 Mode = Flashes when Transmitting Data
D16 Flashes with Host Communication (Ethernet Port 0)
YEL Ethernet Speed: OFF = 10Mb/S, ON = 100Mb/S
GRN OFF = No Link, ON = Good Link, Flashing = Ethernet Activity
IN1 Input IN1 Status: OFF = Inactive, ON = Active, Flash = Trouble. See Note 1.
IN2 Input IN2 Status: OFF = Inactive, ON = Active, Flash = Trouble. See Note 1.
IN3 Input IN3 Status: OFF = Inactive, ON = Active, Flash = Trouble. See Note 1.
IN4 Input IN4 Status: OFF = Inactive, ON = Active, Flash = Trouble. See Note 1.
IN5 Input IN5 Status: OFF = Inactive, ON = Active, Flash = Trouble. See Note 1.
IN6 Input IN6 Status: OFF = Inactive, ON = Active, Flash = Trouble. See Note 1.
IN7 Input IN7 Status: OFF = Inactive, ON = Active, Flash = Trouble. See Note 1.
IN8 Input IN8 Status: OFF = Inactive, ON = Active, Flash = Trouble. See Note 1.
K1 Relay K1: ON = Energized
K2 Relay K2: ON = Energized
K3 Relay K3: ON = Energized
K4 Relay K4: ON = Energized
Note 1: If this input is defined, every three seconds the LED is pulsed to its opposite state for 0.1
seconds, otherwise, the LED is off.