Nortel Networks RTU-292 Operations Manual, VMM-100 SPECIFICATIONS, General, Environmental

RTU-292 Operations Manual

Table 7-6	VMM-100 SPECIFICATIONS
GENERAL
Frequency Response		100 to 3400 Hz +/- 2dB
Input Level		0 dBm nominal
Input Impedance		Unbalanced 10k Ohm
DSP Output Delay		< 10mS
Noise Reduction Type		Dynamic Peaking around coherent signals
Noise Reduction		Approximately 10-20 dB
Audio Output		10 Ohm unbalanced, 0 dBm nominal
Audio Output Distortion		Less than 0.5% @ 1 kHz
VMR Performance		Probability of detection (Pd) > 95% at 0 dB
		S/N ratio
VMR Output Delay		0-300 ms, adjustable
VMR Hang Time		0.75-2.25 sec, adjustable in half-second
		increments
Indicators		Audio Level/Speech Present LED
Size		5.75" x 3.0" printed circuit board
Power Requirements		+5 VDC, 200 mA nominal
		+12 VDC, 5 mA nominal
		-5 VDC, 20 mA nominal
ENVIRONMENTAL
Operating Temperature		-20C to +55C
Storage Temperature		-40C to +85C
Humidity		Up to 95% @ +55C
Shock		MIL-STD-810D, method 516.3 procedure VI
Vibration		MIL-STD-810D, method 514.3 Category I
Altitude		Up to 10,000 ft.

7-9 JPS Communications, Inc.