Telenetics MOT202T manual Functional Description, Power Requirements, Environmental Specifications

25111 Arctic Ocean Drive Lake Forest, CA 92630

tel. 949.455.4000 fax. 949.455.4010 www.telenetics.com

Specifications*

FUNCTIONAL DESCRIPTION

General
Data Rate	From 0 to 1800 bps (baud) depending
	on transmission facility
Modulation	Phase-coherent Frequency shift keying
	(FSK).
Line Impedance	600 ohms ± 10 %, transformer coupled
	and transient protected
Operation	The modem operates at full duplex or
	half duplex over four-wire lines, or
	half-duplex only over two-wire lines.
	It operates asynchronously.

Receive and		Space:		2200	Hz
Transmit		Mark:		1200	Hz
Frequencies
		Soft carrier:		900	Hz
Timings		All	settings and	timings are
		controlled by jumpers on the modem
		board.
Anti-streaming		Option to turn transmitter OFF after a
		selected time, even if Request To Send
		is ON
Test Features		The modem employs a rotary switch
		that selects these test options:
		¥	Data Mode
		¥	Self Test
		¥	Analog Loop back
		¥	Digital Loop	back
		¥	Test Pattern	Transmit
Indicators		The	modem has LED indicators for the
		following interface circuits:
		RTS, CTS, DCD, RD, TD, TM (Test Mode)
		and PWR.
Receiver
Receiver	Center	1700Hz ± 16 Hz
Frequency	Tolerance

Receiver Performance The modem receiver will operate with the following performance at 3002/C2 or M1025 lines

1200Bps:	B.E.R. equal to 1 x 10-5with 12 db
	signal to noise ratio
1800Bps:	B.E.R. equal to 1 x 10-5with 18 db
	signal to noise ratio
Carrier Detect	The received carrier detect threshold can
Threshold	be configured by the on-board jumper.
With jumper option:
DCD off ➞ on	Carrier stronger than Ð30 dBm
OR
DCD off ➞ on	Carrier stronger than Ð45 dBm
Hysteresis:	Approximately 2 dB
Receiver Dynamic	0 dBm to Ð 43 dBm
Range

Transmitter
Transmit	FrequencySpace frequency:			± 0.1	%
Tolerances		Mark frequency:		± 0.1	%
		Soft Carrier frequency:		± 0.1	%
Transmit	Levels	The modem transmit level is
		selectable from 0 dBm to Ð 14 dBm in
		2	dB steps by the on-board jumper S2-
		1	to 8.

POWER REQUIREMENTS

Rack & Standalone

AC Power	20 VAC RMS @ 150 mA, centertapped.
	10 VAC RMS @ 225 mA.
	115VAC &		220/240VAC
DC Power	+15	VDC	referred to gnd
	-15	VDC referred to gnd.
	+8.5 VDC		referred to gnd.

ENVIRONMENTAL SPECIFICATIONS

Operating Temperature		-40	to	+	85	degrees C
Storage	Temperature	-40	to	+	85	degrees C
Relative	Humidity	95%,	non-condensing

INTERFACE SPECIFICATIONS

Analog Line edge An 8-pin edge connector located at

connectorthe backend of the modem board. The four signals routed to and from this connector are the analog transmit and receive pairs. Each pair are fully differential signals.

Pin Signal Name		Function
3	DTR	Receive	Line for four wire systems
4	DTX	Transmit/Receive Line for two wire systems
5	DRX	Transmit/Receive Line for two wire systems
6	DRR	Receive	Line for four wire systems

The maximum data rate for this modem is:

▲0 to 1200 bps (baud) over ITU M.1025 or BELL 3002 Basic services.

▲0 to 1800 bps (baud) over ITU M.1020 or BELL 3002 C2 conditioned lines.

Interface Compatibility

▲The modemÕs line interface is compatible with the Bell Systems/WE 202 specifications and with the ITU V.23 recommendation.

▲The modemÕs data interface is compatible with the RS 232C specifications and with the ITU V.24/28 recommendations.

Document #0071 0700

Telenetics is registered trademark of Telenetics Corporation. All other trademarks are the property of their respective holders. ©2000