Tech Notes
Connect keypads and other addressable devices (4204, 4219, 4229, 4286, 5881, LRR, etc.) to the control’s keypad terminals as shown on the Summary of Connections diagram. The system supports up to 8 keypads and 4 AUI consoles, which can be assigned to partitions in any combination. Use the Table of Device Addresses to determine the appropriate address for each device.
Determine wire size using the Wire Run Chart. Multiple devices can be daisy chained on a single wire run.
For single wire runs you must determine the current drawn by all devices on the run, then refer to the Wiring Run chart to determine the maximum length that can be safely used for each wire size.
TOTAL CURRENT DRAWN BY ALL DEVICES CONNECTED TO A SINGLE WIRE RUN
Wire Size 50 mA or less 100 mA 300 mA 500 mA 600 mA
#22 900 ft (274m) 450 ft (137m) 150 ft (46m) 90 ft (27m) 75 ft (23m)
#20 1400 ft (427m) 700 ft (213m) 240 ft (73m) 140 ft (43m) 120 ft (37m)
#18 1500 ft (457m) 1100 ft (335m) 350 ft (107m) 220 ft (67m) 170 ft (52m)
#16 1500 ft (457m) 1500 ft (457m) 550 ft (168m) 350 ft (107m) 270 ft (82m)
The length of all wire runs for both partitions combined must not exceed 1500 feet
(457m) when unshielded quad conductor cable is used (750 feet if shielded cable is used).
This restriction is due to the capacitive effect on the data lines when quad cable is used.
Note: It is always a good idea to Home Run Supervised Devices like RF Receivers and LRR whenever possible to prevent any Supervision problems from occurring.
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