Relay Controller Device

2 Relay Controller Device (RCD) If additional relays are needed beyond the two that are available on the DCD, then a RCD can be employed. Each RCD has eight Form “C” relays on-board. The relays are configured using the software and have a variety of means of operation. The Millenium Windows System can support up to ten RCD’s per SCU for a total of 80,000 relays per system.

3 RCD Spec’s Voltage: 9 to 14 VDC (RCD will not operate below 9 volts) Current: 200 ma (worst case current draw, board only) Data Storage: 24hr minimum clock and memory backup. Output: 8 Form “C” relays, rated at 24 2 amps. –Relay 0 on the RCD addressed as Device 0 is hard coded as a network communications failure output. Tamper: Independent signal for cover tamper. Operational Temperature: 14  F to 104  F (-10  C to 40  C).

4 Addressing the RCD

5 RCD J1 Terminal Block Connections

6 RCD J2 Programming Connector

7 RCD J3 Jumper

8 RCD J4 Jumper

9 RCD J5 Terminal Block Connections

10 RCD J6 Terminal Block Connections

11 RCD Firmware Revisions

12 Deleting Programmed Data on the RCD

13 RCD Watchdog LED

14 RCD Trunk Communications

15 RCD Data Wiring

16 RCD Input Power

17 RCD Power and Data Wiring

18 RCD Relay Outputs

19 RCD Tech Notes The inbound data trunk cable and the power cable should have some form of identification like a piece of electrical tape around the jacket to ensure that future trouble shooters know which direction the power and data source is feeding from. The inbound and outbound shield of the trunk data cable, should be twisted together and fastened with an electrical crimp or wire nut. The shield should not connect to any terminals of the RCD PCB. The first RCD on the network branch must have an address of “0”.

20 RCD Tech Notes Inbound and outbound data trunk connections should be made on terminals 1 and 2 (respective of polarity) on the J1 connector. Since the 12 AWG power cable is difficult to install under the terminals of the RCD, it is recommended that the inbound and outbound cables be combined with an 18 AWG pigtail which is wired to terminals 1 and 3 of the J6 connector. The first relay on the board address as “0” is hard coded as a communications supervisory output and cannot be reprogrammed. RCD’s are not sold with an enclosure, make you order them.

21 RCD Terminal Summary Label