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1. "SIM" - connector with an ejector, used when a GSM modem is installed inside of the appliance to connect a SIM card.
2. "SMA" - connector, used when the GSM modem is installed inside of the appliance to connect the GSM antenna.
3. "LAN" - Ethernet 10/100 Base-T port, provides an Ethernet connection.
• LEDs - "yellow" (status) and "green" (traffic) shows show the network traffic. The status LED: flashes green when the system starts up, and shows the connection state (constant green light - the connection is established, blinking green - the connection attempt).
4. "USB" - type A USB-port 2.0, is required for a USB flash drive to upgrade an appliance.
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8. LEDs: "ACT" - indicates appliance status, "CN1" - indicates CAN1 bus traffic, "CN2" - indicates CAN2 bus traffic, "ERR»" ERR” - indicates error and traffic
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9. "CAN" - two equivalent digital connectors RJ12 for the connection to the master module, CAN sensors, or CAN extensions on a CAN bus, with auto-sensing.
10. "TR" - labled labeled "1" on this picture. Needed for connection of CAN sensors.
11. "Sensor" - RJ12 analog sensor input with auto-sensing.
12. "AC line" - power input 240V. IEC C14 connector.
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14. "Dry contacts" - empty slot for dry contacts module SC16, used to connect dry contacts on doors, windows, etсetc.
15. "DC 12V" - backup power socket, to connect a battery or a battery backup.