Nortel Networks operation manual RTU-292 Specifications

1-6

RTU-292 Operations Manual

Table 1-3	RTU-292 SPECIFICATIONS
TELEPHONE LINE INTERFACE (J2, Male DB-9 Connector)
Output & Input Levels to Phone Line	Nominally -12 dBm. (Adjustable -21 to 0 dBm in 3 dB steps).
Frequency Response	+2 dB, 300 to 3200 Hz.
Output Impedance to Phone Line	600 Ohm .
VOX Sensitivity	16 +2 dB Below Phone Line Input Level Setting.
	(-25 dBm @ -9 dBm Level Setting, for example)
VOX Hang Time	0.6 Second or 2.0 Seconds, (Internally Settable).
Hybrid Balance/Adaptation Speed	-30 dB over 300 to 3200 Hz BW within 1.25 Sec.; measured with
(into 600 Ohm)	white noise source.
Ultimate Hybrid Balance (into 600 Ohm)	-50 dB typical over 300 to 3200 Hz BW; measured with a single
	tone.
Hybrid Impedance Matching Capability	0 to 10k Ohm Complex Impedance.
Phone Line Connections	RJ11C Connector (J1) and screw terminals on rear panel term
	block.
RADIO INTERFACE (J1, Male DB-9 Connector)
Input Impedance	Balanced or Unbalanced 600 Ohm or Unbalanced 47K Ohm.
Input Level	-40 to +10 dBm, Internally Adjustable.
Output Impedance	600 Ohm balanced.
Output Level	-40 to +10 dBm, Internally Adjustable
Frequency Response	300 to 3200 Hz + 2 dB.
Key Relay Output	Low Level Relay Contacts, 60VA max., Switching Speed: 5 msec.
TELEPHONE
Handset (RJ12C Jack)	Electret microphone, dynamic receiver.
Dialing Modes	DTMF, Pulse at 10 pps
Pulse Dial Make/Break Ratio	40/60.
Dialing Keypad	3x4, Standard Telephone Layout.
GENERAL
Microphone Interface	ALC (Automatic Level Control) with 30 dB dynamic range.
Headphone Interface	Drives high, medium, or low impedance headphones.
Phones Jack (monaural)	Delivers NLT 10mW into 600-Ohm headphones.
Speaker Driver Power	4W min @ 10% Distortion.
Internal Speaker	3 inch square, 3.2 Ohms.
Indicators	Peak Level, Keyed, and Indicator for each pushbutton.
Front Panel Controls	Power Switch, Dialing Keypad, Speaker and Handset Volume
	Controls, Pushbuttons: Tel Line/Phone, Tel Line/Radio, Off,
	Handset/Phone, Handset/Radio, Speaker/Phone, Speaker/Radio,
	Tel VOX, Manual Key, Auto Answer, Audible Ring.
AC Input Power	115 or 230 VAC +/- 15%, 47-63 Hz, 20 VA typical, 50 VA max.
DC Input Power	+11 to +15VDC or +22 to +30VDC, 1 A Maximum.
Size	3.5"H x 19"W x 10"D (8.9 x 48.3 x 25.4 cm)
Weight	12 lbs. (5.5 kg).
ENVIRONMENTAL
Operating Temperature	-200C to +550 C.
Storage Temperature	-400C to +850 C.
Humidity	Up to 95% @ 550 C.
Shock	MIL-STD-810D, method 516.3 procedure VI.
Vibration	MIL STD 810D, method 514.3 Category I.

JPS Communications, Inc.