- The DCD (Door Control Device) is designed to control a single access point. This device can accept inputs from most reader technology, analog alarm devices, and analog inputs from request to exit devices.
- In the event of a computer or communications failure it will still operate and log history transactions into the memory buffer.
- Supports Wiegand Card Reader protocols, configurable from 0-50 bits; Magstripe technologies ABA/ISO Track 2 with configurable data bits; Clock and Data, and Marlok optical key protocol.
- Communicates using various types of supervised wiring methods including; Daisy-Chaining, T-Tapping, Home Running, Star Configuration, and High Security Loop Back.
- Up to 100,000 DCD’s can be connected over 1000 SCU’s (Site Control Units).
- Included in kits 135-510016 and 135-510017 (2), 064-510299 (1) and 064-510430 (1)
- 9-14 VDC, from our standard Power nSupply . Current consumption is 50mA nominal, and 150 mA maximum. Circuit Protection
- Input power is protected from reverse polarity, over voltage, and transient surges.
DCD Device Communications
- A twisted pair, multi-drop, RS-485 polling scheme is used to communicate from the DCD to the other Millenium Devices.
- 4.24” x 7.35” @ < 1lb, 10.4 x 18.7cm @ < 0.4Kg
- Each DCD employs 2 programmable Single pole, Form C relays that are rated for 2 amps @ 24 VDC.
- The DCD has the capability to monitor up to 7 independent alarm inputs. 4 are supervised with 1K EOL resistors, and the other 3 are normally closed circuits. The circuit must have a break time of at least 500 ms for the alarm to trigger.
All Events History Buffer
- 200 all events history, stored in RAM memory with a minimum of 24 hours backup.
- 14° to 104°F (-10° to 40°C) less than 90% non-condensing humidity.
- 100 software selectable priority events (alarms, com fail, etc.). These events are stored on-board if the SCU is offline with the host computer. They can be programmed to send signals back to the computer if they are activated.
- On-board integrated tamper switch.
Approvals and Listing
- UL 294