Specifications - Lenel OnGuard Hardware Installation Manual

83

Specifications

**The DRI is for use in low voltage, class 2 circuits only. These specifications are subject to change without
notice.
• Power: 12 to 24 VDC + 10%, 550mA maximum (plus reader current)
- 12 VDC @ 450mA(plus reader current) nominal
- 24 VDC @ 270mA (plus reader current) nominal
• Outputs: Six outputs, Form-C, 5A @ 28 VDC resistive
• Inputs:
- Eight (8) unsupervised/supervised, standard EOL, 1k/1k ohm, 1% 1/4 watt
- Two (2) unsupervised, dedicated for cabinet tamper and UPS fault monitoring
• Reader interface:
- Reader power (jumper selectable): 12 VDC + 10% regulated, 125mA maximum each reader or 12
to 24 VDC ±10% (input voltage passed through) 125mA maximum each reader
- Reader LED output: TTL compatible, high > 3V, low < 0.5V, 5mA source/sink maximum
- Reader buzzer output: Open collector, 5 VDC open circuit maximum, 10mA sink maximum
- Reader data inputs: TTL compatible inputs or 2-wire RS-485
• Communication: RS-485 two-wire, 9600 to 115,200 bps
• Cable requirements:
- Power: 18 AWG, 1 stranded twisted pair
- RS-485: 24 AWG, 120 ohm impedance, stranded twisted pair with shield, 4000 feet (1219 m)
maximum
- Alarm inputs: 1stranded twisted pair per input, 30 ohms maximum
- Outputs: As required for the load
- Reader data (TTL): 6 conductors, 18 AWG stranded, 500 feet (150 m) maximum
- Reader data (RS-485): 24 AWG, 120 ohm impedance, stranded twisted pair with shield, 2000 feet
(609.6 m) maximum
• Mechanical:
- Dimension: 6 x 8 x 1 in. (152 x 203 x 25 mm)
- Weight: 11 oz. (312 g) nominal
• Environmental:
- Temperature: 0 to +70° C operating, -55 to +85° C storage
- Humidity: 0 to 95% RHNC
• Certifications:
- UL294 & UL1076 Listed
- ULC Listed
- FCC Part 15
- C-Tick
- CE marking
- RoHS compliant
- WEEE
Hardware Installation Guide
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revision 7 —