Federal Signal 2001

The Federal Signal 2001 is an electro-mechanical series of warning sirens manufactured by Federal Signal Corporation. It is currently one of the most popular sirens on the market, and is one of 5 sirens Federal Signal makes today.
History
The Federal Signal 2001 was designed in the late 1980's by Earl Grosswiller. It was designed to run on DC (battery) power as well as AC power. It was not meant to be a 'Civil Defense' siren; however just to be a 'Warning Siren'. The siren began its production in 1988, and exceeded the Thunderbolt series siren, also made by Federal Signal. The first two models were the Federal Signal 2001-DC, running on DC power only, and the Federal Signal 2001-AC, running on AC power only.
However, many cities that bought these sirens in the 1980's or early 1990's are beginning to see problems with the siren, such as motor failures or bad pitch; however, there is not much they can do but wait for these sirens to become outdated.
Siren Models
The exact design of the Federal Signal 2001 has varied in its 22 years of production.
*2001-AC: The first model, an alternative to the Federal Signal Thunderbolt.
*2001-DC:Almost exactly like the 2001-AC, the 2001-DC ran on DC power only, instead of AC. It had 3 generations:
First Generation: The first generation featured a mesh screen on the horn, a large FS logo on the inside cone, and the words 'FEDERAL 2001:DC' on the rotator.
Second Generation: Almost exactly like the first generation, except this siren had no FS logo on the cone.
Third Generation: This siren had all the same decals on the rotator, but had a rounded cone and a small FS logo on it, and had no mesh screen on the horn.
*2001-SRN: Almost exactly identical to the third generation 2001-DC, except this siren had different metal plating on the cone, no decals on the rotator box, and could run off of AC or DC power.
*2001-SRNB: First Generation: Similar to the 2001-SRN, except it had a small cube-shaped rotator box instead of a rectangular rotator, as was used on older 2001 models.
Second Generation: This generation had a cube-shaped rotator, decals on the rotator, and a bigger FS logo on the cone.
*2001-130: Almost completely identical to the second generation 2001-SRNB, except this siren had a taller backbox. This is the currently made model of the 2001's.
Signals
The Federal Signal 2001 produces these tones, or signals:
*Alert (Steady)
*Attack (Wail)
*Fast Attack (Fast Wail)
*Growl (Test)
The duration of these signals is set manually according to individual cities' testing requirements.
Rotator Motor Facts
The Federal Signal 2001's rotator motor speed varies by siren model.
*2001-AC/2001-DC/2001-SRN: 2, 4, or 8 RPMs.
*2001-SRNB/2001-130: 3 or 8 RPMs.
The early models of the 2001s had the exact same rotator speed settings as the Federal Signal Thunderbolt siren.
Facts
*Colors: Yellow or White
*Decibel Output: 127 - 130 decibels, quietest is 2001-AC, loudest is 2001-130.
*Weight: 450 lbs (Includes siren head, controls, and batteries.)
*Operating Temperature: -30°C to 60°C
*Mounting: Pole or Roof
*Batteries: 4 Delco Voyager Model M24MF, 15 minutes of battery backup after AC power loss on 2001-SRN, 2001-SRNB, and 2001-130.
*This siren's chopper motor is located inside the siren head.
*This siren is rather popular with cities looking for a cheap DC-run siren.
See Also
*Thunderbolt Siren
*Federal Signal Modulator
*Federal Signal 2T22
*Civil Defense Siren

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