Keri Systems MR51e - Manual (Page 5)

Mercury Security © 2013 MR51e DOC 10107-0035 REV 1.05 Page 5
Relay Circuit Wiring (continued):
It is possible for the MR51e to provide power for a 12 Vdc door strike providing the maximum current is
not exceeded, see specification section.
Diode Selection:
Diode current rating: 1x strike count
Diode breakdown voltage: 4x strike voltage
For 12 Vdc or 24 Vdc strike, diode 1N4002
(100V/1A) typical.
MOV Selection:
Clamp voltage: 1.5x Vac RMS.
For 24 Vac strike, Panasonic ERZ-C07DK470
typical
9. Status LEDs:
At power up, LEDs 2 through 6 are turned ON then OFF in sequence.
After the above sequence has completed succes sfully, the MR51e goes to the “Waiting for IP Address”
mode, when in the MSC-Specific DHCP or Public DHCP addressing modes:
Waiting for IP Address mode:
LED DESCRIPTION
1 Off-line: 0.2 second ON, 0.8 second OFF
Waiting for application firmware to be downloaded: .1 sec ON, .1 sec OFF
2 Waiting for IP address: 0.5 second ON, 0.5 second OFF
The following table describes the LED ’s in the Normal Running mode. If communication is lost, the
MR51e reverts back to the “Waiting for IP Address” mode, when in the MSC-Specific DHCP or Public
DHCP addressing modes:
Normal Running mode:
LED DESCRIPTION
On-line, encryption disabled = 0.8 second ON, 0.2 second OFF
1 On-line, encryption enabled = four pulses; 0.1 second ON, 0.1 second OFF per second
Off-line: 0.2 second ON, 0.8 second OFF (static addressing mode only)
Waiting for application firmware to be downloaded: .1 sec ON, .1 sec OFF
2 Flashes when there is host communication (approximately every 5 seconds)
3 Flashes when data is received from either reader/downstream devices
4 Input IN1 Status: OFF = Inactive, ON = Active, Flashing = Trouble. See note 1
5 Input IN2 Status: OFF = Inactive, ON = Active, Flashing = Trouble. See note 1
6 Input IN3 Status: OFF = Inactive, ON = Active, Flashing = Trouble. See note 1
YEL Ethernet speed: OFF = 10 Mb/S, ON = 100 Mb/S
GRN OFF = No Link, ON = Good Link, Flashing = Ethernet Activity
Note 1: If this input is defined, every three seconds the LED is pulsed to its opposite state for 0.1
second, otherwise, the LED is off.
TB5
2-C
NC
NC
NO
1
NO
1-C
TB6
1
NO
1-C
NC
NC
NO
2-C