Simplex Flex Installation Instructions Manual page 8

Amplifier Field Wiring
Overview
This section contains field wiring guidelines and illustrations for the amplifiers. These diagrams apply to both the Flex-35 and Flex-50. Wiring of optional
NAC Expansion, Class A, and Constant Supervision NAC (CSNAC) modules is also covered in this section, as well as speaker circuit wiring distances.
Since the Flex amplifiers allow self-backing operation, no wiring is required for configuring an amplifier for backup operation.
Note: TrueAlert ES speaker appliances have a maximum wire length. Refer to the Speaker Wiring Application. Guidelines in the ES Power Supply IDNAC
Card Installation Instructions, 579-1289 (for legacy EPS installations, see 579-1015 )
Note: "Applied Power" is the total amplifier power available to the speaker circuit. Applied power is consumed by speakers and wiring losses. "Actual
Power" is the speaker power available over the maximum distances designated for each wire size. Complying with the wire sizes and associated
distances specified will ensure no more than a 3dB wiring power loss to the end of the speaker circuit.
VRMS Power (Watts)
Applied Actual
25 50
25 40
25 30
25 20
25 10
70 50
70 40
70 30
70 20
70 10
VRMS Power (Watts)
Applied Actual
25 50
25 40
25 30
25 20
25 10
70 50
70 40
70 30
70 20
70 10
* Wiring distances affected by capacitance of speaker circuit wiring if using CSNAC. See notes Figure 10.
page 8
Table 1: Class A Speaker Circuit Wiring Distances for Flex Amplifiers*
Distance to the Last Speaker (One Way) (Feet/Meters)
12 AWG
2
(3.309 mm )
25 812 ft. (247 m)
20 1,015 ft. (309 m)
15 1,350 ft. (411 m)
10 2,035 ft. (620 m)
5 4,070 ft. (1,241 m)
25 6,500 ft. (1,981 m)
20 8,121 ft. (2,475 m)
15 10,860 ft. (3,310 m)
10 16,212 ft. (4,941 m)
5 32,400 ft. (9,876 m)
Table 2: Class B Speaker Circuit Wiring Distances for Flex Amplifiers*
Distance to the Last Speaker (One Way) (Feet/Meters)
12 AWG
2
(3.309 mm )
25 1,624 ft. (495 m)
20 2,033 ft. (620 m)
15 2,707 ft. (825 m)
10 4,067 ft. (1,240 m)
5 8,140 ft. (2,481 m)
25 13,000 ft. (3,962 m)
20 16,243 ft. (4,951 m)
15 21,721 ft. (6,621 m)
10 32,424 ft. (9,883 m)
5 64,800 ft. (19,751 m)
Flex Amplifiers Installation Instructions
14 AWG
2
(2.081 mm )
510 ft. (155 m) 340 ft. (104 m)
640 ft. (195 m) 402 ft. (123 m)
850 ft. (259 m) 535 ft. (163 m)
1,250 ft. (381 m) 804 ft. (245 m)
2,600 ft. (792 m) 1,600 ft. (488 m)
4,096 ft. (1,248 m) 2,578 ft. (786 m)
5,108 ft. (1,557 m) 3,212 ft. (979 m)
6,800 ft. (2,073 m) 4,270 ft. (1,301 m)
10,190 ft. (3,106 m) 6,400 ft. (1,951 m)
20,000 ft. (6,096 m) 12,500 ft. (3,810 m)
14 AWG
2
(2.081 mm )
1,021 ft. (311 m) 680 ft. (207 m)
1,279 ft. (390 m) 804 ft. (245 m)
1,704 ft. (519 m) 1,070 ft. (326 m)
2,558 ft. (780 m) 1,608 ft. (490 m)
5,120 ft. (1,561 m) 3,219 ft. (981 m)
8,197 ft. (2,498 m) 5,154 ft. (1,571 m)
10,216 ft. (3,114 m) 6,424 ft. (1,958 m)
13,602 ft. (4,146 m) 8,553 ft. (2,607 m)
20,394 ft. (6,216 m) 12,823 ft. (3,908 m)
40,000 ft. (12,192 m) 25,000 ft. (7,620 m)
16 AWG 18 AWG
2
(1.309 mm ) (0.8231 mm
200 ft. (61 m)
252 ft. (77 m)
337 ft. (103 m)
505 ft. (154 m)
1,012 ft. (308 m)
1,620 ft. (494 m)
2,020 ft. (616 m)
2,689 ft. (820 m)
4,030 ft. (1,228 m)
8,000 ft. (2,438 m)
16 AWG 18 AWG
2
(1.309 mm ) (0.8231 mm
400 ft. (122 m)
505 ft. (154 m)
673 ft. (205 m)
1,011 ft. (308 m)
2,024 ft. (617 m)
3,241 ft. (988 m)
4,040 ft. (1,231 m)
5,379 ft. (1,640 m)
8,065 ft. (2,458 m)
16,000 ft. (4,877 m)
2
)
2
)
579-173 Rev. Q