Shure Model FP42 SPECIFICATIONS, ACCESSORIES, ￿￿￿$￿O￿O￿H￿J￿U￿R￿6￿R￿X￿Q￿G￿￿￿F￿R￿Pup, Telephone interconnection, Telephone Line Surge Protection

is recommended for normal use to provide approximately 14 dB of										Distortion
headroom from operating level to clipping level.										0.4% or less THD, 30 to 20,000 Hz at + 15 dBm output; 0.5% or
The VU meters are illuminated by a single cartridge-type, 6.3V in-										less IM distortion at +15 dBm output into 600 ohms
candescent lamp, operating well under its normal rating for a life ex-										Common Mode Rejection
pectancy of greater than 10,000 hours. The lamp is only lit for ac										65 dB minimum with input of – 20 dBV at 100 Hz
operation. Consequently, the illumination serves as a visual alarm if										Control Interaction
the ac is interrupted and the unit has switched to battery operation.
										Less than 1 dB with any control combination
The VU meters are connected on the primary side of the output
										Overload and Shorting Protection
transformer to assure protection from any dc level on a telephone
										Shorting outputs, even for prolonged periods, will cause no dam-
line.
										age; microphone input will not be damaged by signals up to 3V
Telephone interconnection
										Separation (left and right outputs)
When using the FP42 connected directly to a telephone line, check
										40 dB minimum at 10 kHz; 50 dB minimum at 1 kHz
to see whether the telephone company requires an interface cou-
										Low-Cut Filters
pler between the FP42 and the telephone line. If a coupler is re-
quired, make certain the coupler selected and the wiring arrange-										6 dB per octave rolloff at 150 Hz
ment are in compliance with local telephone company regulations.										Limiter
Connect the telephone line to the left or right Output connector and
										Threshold: Adjustable, +8 to +14 dBm
turn the Pan controls so that the entire output signal is on the tele-
										Attack Time: 3 msec typical
phone-connected output, or switch to mono operation.
										Recovery Time: 500 msec typical
Telephone Line Surge Protection										Peak/Limiter Indicators
When using the FP42 connected directly to a telephone line subject										Limiter out: lights 6 dB below clipping
to lightning-induced voltage surges, the following part (commer-										Limiter in: lights at onset of limiter action
cially available) can be installed across the output terminals to pro-										Phase
vide additional protection for output circuit components: Metal Ox-
										All outputs in phase with all inputs. Pin 2 is “high” with respect to
ide Varistor, General Electric Co., Type No. V22ZA1.
										pin 3; pin 1 is ground. Tip of mix bus jack in phase with pin 3. Tip
SPECIFICATIONS										and ring of headphone jacks in phase with pin 2 of left and right
										outputs, respectively.
Frequency Response (ref 1 kHz)
										Tone Oscillator
	30 to 20,000 Hz, +1, –3 dB
										1 kHz; +18 dBm maximum at both outputs with Master level full
Voltage Gain (at 1 kHz)					￿￿￿$￿O￿O￿H￿J￿U￿R￿6￿R￿X￿Q￿G￿￿￿F￿R￿Pup
	INPUT					OUTPUT				Phantom Power
		LINE		MICROPHONE		MIX BUS	PHONES		PHONES (CUE)	30 Vdc nominal, 3.3k series resistance, automatically disabled
	Mic	90 dB		40 dB		25 dB	100 dB		85 dB
										with input switch in Line position
	Line	40 dB		–10 dB		–25 dB	50 dB		35 dB
										Operating Voltage
	Mix Bus	55 dB		5 dB		–	62 dB		–
Inputs										Ac Operation: 120 or 240 Vac ±10% (internally selectable),
										50/60 Hz, 6W
	INPUT		IMPEDANCE (at 1 kHz)				INPUT CLIPPING LEVEL
		FOR USE WITH			ACTUAL			(at 1 kHz)		Dc Operation: 27 Vdc nominal at 30 mA typical no-signal, 32 mA
	Mic	19–600 ohms				1k	–40 to –5 dBV*			typical at 0 VU (+4 dBm) output; 21.5 Vdc minimum; battery life
	Line	Less than 10k				66k	+10 to +45 dBV*			approximately 10 hours with alkaline batteries at +4 dBm output
	Mix Bus	3.5k			3.5k				0 dBV
										in continuous use; three 9-volt batteries, type NEDA 1604A
	*Dependent on input control setting.
Outputs										Temperature Range
										Operating: –18°to 57° C (0° to 135° F)
	OUTPUT		IMPEDANCE (at 1 kHz)				OUTPUT CLIPPING LEVEL			Storage: –29°to 71° C (–20°to 160° F)
		FOR USE WITH			ACTUAL			(at 1 kHz)
										Dimensions
	Mic	150 ohms			<1 ohm		–33 dBV min. across150
									ohms	79.5 mm H x 310 mm W x 230 mm D
							+18 dBm min. across 600
	Line	600 ohms			185 ohms					(3–1/8 in. x 12–7/32 in. x 9–1/16 in.)
									ohms
	Mix Bus		3.5k			3.5k	–15 dBV min. across 3.5k			Weight
	Headphones	8–2000 ohms			100 ohms		+6 dBV min. across 200 ohms
										Net: 2.95 kg (6 lb 8 oz)
Noise
										Packaged: 3.45 kg (7 lb 10 oz)
	Equivalent Input Noise: –129 dBV (low-impedance micro-
										Certifications
	phone, 150 ohms, 300 to 20,000 Hz) into 600-ohm load at full
										Listed by Underwriters Laboratories, Inc.; listed by Canadian
	gain
										Standards Association as Certified
	Equivalent Input Hum and Noise: –127 dBV (low-impedance
	microphone, 150 ohms, 20 to 20,000 Hz) into 600-ohm load at									ACCESSORIES
	full gain
										The Model A16R Rack Panel Kit consists of a 19 in. x 3–1/2 in.
	Output Noise: –70 dBV maximum (output control full counter-
										(483 mm x 89 mm) precut rack panel and necessary hardware for
	clockwise [off]), –55 dBV maximum (output control full clockwise
										rack-mounting the FP42 with its cover in place and end caps re-
	[on]) (input control down, 300 to 20,000 Hz)
										moved in a standard 19” (483 mm) rack panel.
	Output Hum and Noise: –62 dBV maximum (output control
	down), – 53 dBV max. (output control up, input control down, 20
	to 20,000 Hz)									￿$￿O￿O￿H￿J￿U￿R￿6￿R￿X￿Q￿G￿￿￿F￿R

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