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LNL-4420 Intelligent Dual Reader Controller
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Specifications
The LNL-4420 is for use in low voltage, class 2 circuits only.
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Primary Power: 12 to 24 VDC ±10%, 500mA maximum (plus reader current)
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12 VDC @ 250mA (plus reader current) nominal
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24 VDC @ 150mA (plus reader current) nominal
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Memory and Clock Backup Battery: Volt Lithium, type BR2325, BR2330 or CR2330
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Host communication: Ethernet: 10BaseT/100Base-TX.
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Downstream communication: Two each, 2-wire RS-485, 2400 to 115200 bps, asynchronous, half-
duplex, 1 start bit, 8 data bits, and 1 stop bit.
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Inputs:
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Two (2) unsupervised, dedicated for tamper and UPS fault monitoring
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Eight (8) unsupervised/supervised, for door position monitoring, REX inputs or alarm contacts
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Relays: Four, Form-C, 5A @ 30 VDC, resistive
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Reader interface:
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Reader power (jumper selectable): 12 VDC ±10% regulated, current limited to 150mA for each
reader or 12 to 24 VDC ±10% (input voltage passed through) current limited to 150mA for each
reader.
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Data inputs: TTL compatible inputs, magnetic stripe and Wiegand standards supported
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RS-485 mode: 9600 to 38400 bps, asynchronous, half-duplex, 1 start bit, 8 data bits, and 1 stop bit.
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LED output: TTL levels, high > 3V, low < 0.5 V, 5mA source/sink max.
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Buzzer output: TTL levels, high > 3V, low < 0.5 V, low=active, 5mA source/sink max.
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Cable Requirements:
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Power: 1 twisted pair, 18 to 16 AWG
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Ethernet: CAT 5
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TTL Reader: 22 to 16 AWG, depending on length and requirements
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RS-485 (I/O device ports): 24 AWG stranded twisted pair(s) with an overall shield, 4000 feet
(1219 m) maximum
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RS-485 (Reader port): 24 AWG stranded twisted pair(s) with overall shield, 2000 feet (609.6 m)
maximum
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Alarm Input: 1 stranded twisted pair, 30 ohms maximum, typically 22 AWG @ 1000 feet (304.8 m)
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Environmental:
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Temperature: Operating: 0° to +70° C (32° to 158° F), Storage: -55° to 85° C (-67° to 185° F)
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Humidity: 0 to 95% RHNC
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Mechanical:
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Dimensions: 8 x 6 x 0.78 in. (203.2 x 152.4 x 20 mm)
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Weight: 9 oz. (255 g) nominal, board only
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Certifications:
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UL294 & UL1076 Listed
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ULC Listed
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FCC Part 15
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FIPS 197 Certificate #766
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CE marking
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RoHS compliant
206 —
revision 7
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