1. “A1..A4” - 4 RJ12 analog sensor inputs with auto-sensing.
2. “LAN” - Ethernet 10/100 Base-T port, provides Ethernet connection. LEDs: “yellow” (status) and “green”
(traffic) shows the network traffic. The status LED: flashes green when system starts up, shows the con-
nection state (constant green light - the connection is established, blinking green - the connection at-
tempt).
3. “HS USB” - type miniAB USB-port 2.0, required to connect a USB camera or to restore an appliance.
4. LEDs: “ACT” - indicates appliance status, “E1” - indicates 12V E1 relay status, “E2” - indicates 12V E2 relay
status, “ERROR” - indicates error and traffic, “CAN” - indicated CAN connection and configuration.
5. LED: “GSM” - indicates GSM SIM card status and “SIM” - connector with an ejector, used when “VT700 /
GSM modem” is installed inside of the appliance to connect SIM card (VT700 is ordered separately).
6. “RESTART” - restarts the appliance.
7. “TEMPERATURE SENSOR” - ac/- 1 °C.
8. “ANTENNA” - connector, used when GSM modem (VT700 is ordered separately) is installed inside of the
appliance to connect GSM antenna.
9. Chassis grounding.
10. “Dip switch” Normal (up) “Off” - the system should be always switched to this mode.
Recovery (down) “On” - use this option only in case you need to recover manufacturing settings.
11. “OUTPUT 12V 0.25A” - 12V 0.25A output electronic relay teminal
12. “DRY CONTACTS 1...4” - Dry contacts terminal (type INPUT)
13. “CAN” - digital connector RJ12 for the connection of CAN sensors and CAN extensions on a CAN bus,
with auto-sensing.
14. “DC 12V 2A” - DC power input.
15. “1-WIRE” - Used when “VT10 / 1-Wire module” (extension board ordered separately) is installed inside.
Serial communication protocol that uses a single data line plus ground reference between master (VT335
/ Monitoring unit) and 1-Wire slave device.
Connections of your Room Guard VT335
