Connecting Sensor-Relay cards to Stretch (VRC6004, VRC6008, VRC6416) cards

Building security video subsystem with the use of Stretch (VRC6004, VRC6008, VRC6416) video capture cards one can install Sensor-Relay cards in order to connect external sensors and executive devices (relays) to the Server.

Connect Sensor-Relay card as follows:

1. Change the SW1 switch on the Sensor-Relay card in accordance with the table.

   Sensor-Relay card	SW1 (1)	SW1 (2)
   Sensor-Relay card 1	OFF	OFF
   Sensor-Relay card 2	ON	OFF

2. If sensors need power supply (active sensors), then set the J6 jumper to 2 and 3 contacts, otherwise – to 1 and 2 contacts (passive sensors).

   Note

   The SW2 switch is used for the RS485 interface configuration.

3. Make sure that the power of computer is off.
4. Connect the Sensor-Relay card to the vodeo capture card with the help of a loop bundled with the distribution kit. The loop is connected to the J1 and J2 connectors (see Appendix 5. Video capture cards pins section).
   
5. If it is necessary connect one more Sensor-Relay card. Connect the loop to the J3 connector on the first and second Sensor-Relay card.
6. Install the Sensor-Relay card into a vacant motherboard slot and fix it in the casing.
7. Connect sensors and relays in accordance with the pinout of external pin of the Sensor-Relay card.

Sensor-Relay card is now connected.