Black Box MD1640A Receiver Sensitivity, AGC Dynamic Range, Interface, Connectors, Diagnostics

	CHAPTER 1: Introduction and Description
Receiver Sensitivity	-43 dBm under worst case conditions
AGC Dynamic Range	43 dB
Interface	EIA RS-232C/ITU V.24
Connectors	Both models: (1) DB25 female for RS232C,
	(1) RJ-11 female for phone hadset, (1)
	Power inlet;
	336+ (MD1640A) model only: (1) RJ-11
	female for dialup line, (1) RJ-11 female
	for 2- or 4-wire leased line;
	336 (MD1641A) model only: (1) RJ-11 female
	for dialup line or 2-wire leased line
Diagnostics	Power-on Self Test, Local Analog Loop,
	Local Digital Loop, Remote Digital Loop,
	Back-to-Back Test.
Indicators	All front-mounted LEDs:
	Both models: Transmit Data, Receive Data,
	Carrier Detect, Speed Indicators, Off Hook,
	Terminal Ready, Error Correction, and Fax;
	336+ (MD1640A) model only: Error
Controls	Toggle switches for Power and for
	Voice/Data with Originate or Answer, DIP
	Switches for various modem options, and
	volume knob
Speaker	Speaker for call progress monitoring
Operating Temperature	0˚ to 50˚C (32˚ to 120˚F)
Power Requirements	115-VAC, 60Hz, 0.3amp (2-prong outlet-
	mounted transformer)
Dimensions	1.38"H x 6.2"W x 9"D (3.5 x 15.6 x 22.9 cm)
Weight	1.6 pounds (0.7 kg) without transformer,
	2.6 pounds (1.2 kg) with transformer

15