Mercury Security © 2016 MS-I8S DOC 10107-0055 REV 1.01 Page 4
7. Status LEDs:
Power-up: All LED’s OFF
Initialization: Once power is applied, initialization of the module begins
When initialization is completed, LEDs A, B, C, 1 through 8 are briefly sequenced ON then OFF.
Run time:After the above sequence, the LEDs have the following meanings:
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 communication port
1 LED: Input Status: 1
2 LED: Input Status: 2
3 LED: Input Status: 3
4 LED: Input Status: 4
5 LED: Input Status: 5
6 LED: Input Status: 6
7 LED: Input Status: 7
8 LED: Input Status: 8
C LED: Cabinet Tamper
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 fault state: Rapid Flash
8. Specifications:
The processor is for use in low voltage, class 2 circuit only.
The installation of this device must comply with all local fire and electrical codes.
Primary power: 12 Vdc ±10%, 130 mA maximum
Inputs: 8 unsupervised/supervised, standard EOL: 500/1k/1k ohm, 1%, 1/4 watt
1 unsupervised, dedicated for cabinet tamper
Communication: 2-wire RS-485. 9600, 19200, 38400, or 115200 bps
Cable requirements:
Power: 18 AWG, 1 twisted pair
RS-485: 24 AWG, 120 ohm impedance, twisted pair with shield, 4,000 ft. (1,200 m)
maximum
Alarm inputs: 1 twisted pair, 30 ohms maximum
