Chapter 2: Installation
Concord 4 Installation Manual 9
Device Max. wire
length to panel
Standby mA
draw
Alarm mA draw
Two-wire smoke detectors (ESL 429AT, 429C,
429CT, 521B, 521BXT, 521NCSXT
22 ga.: 330 ft.
18 ga.: 330 ft.
70 µA 60 mA
Two-wire smoke detectors (system sensor 2400,
2400TH)
22 ga.: 330 ft.
18 ga.: 330 ft.
120 µA 80 mA
Hardwired interior siren (13-949) 22 ga.: 750 ft.
18 ga.: 1,500 ft.
0 mA 85 mA
Piezo dynamic exterior siren (13-950) 22 ga.: 750 ft.
18 ga.: 1,500 ft.
0 mA 150 mA
Speaker siren (60-528 or 13-060) 18 ga.: 100 ft. 0 mA 500 mA
*Maximum current draw for the SnapCards does not include the load which may be applied to their
auxiliary DC supply.
Table 5 below describes the total system wire lengths allowed for all SuperBus 2000
devices when installing systems using unshielded or shielded cable. After determining
panel location, run all necessary wires to that location using the information in
Table 6 below.
Table 5: Wire lengths
Wire type Total system wire
18-gauge, unshielded
18-gauge, shielded
4,000 ft.
3,000 ft.
22-gauge, unshielded
22-gauge, shielded
4,000 ft.
3,000 ft.
Table 6: Device wire requirements
Device Wire requirements
AC power transformer 2-conductor, 18-gauge, 25 ft. max.
Earth ground Single conductor, 16-gauge solid, 25 ft. max.
Telephone (RJ-31X) 4-conductor
Detection devices 2- or 4-conductor, 22-gauge, 1,000 ft. max.
2- or 4-conductor, 18-gauge, 2,500 ft. max.
(based on 30 ohms max. loop resistance including
device)
Speakers 2-conductor, 18-gauge, 100 ft. max.
SuperBus 2000 devices 4-conductor, 22- or 18-gauge
Interrogator 200 AVM power and microphone 4-conductor, 22-gauge, shielded
2-wire smoke detectors 2-conductor, 22-gauge, 330 ft. max.
2-conductor, 18-gauge, 830 ft. max.
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