Low Power DC Modem

Bell 103, 212ALP, V.22bis

The LP9624 Modem ( 300bps Bell 103, 1,200bps   Bell 212 & V.22 , and 2,400bps V.22bis) runs on 9 to 15 VDC and is ultra-compact and easy to install. It's designed to run on extremely low current from DC power and is idea for Solar Powered applications. This unit is designed for applications where power can be provided at pin 20 ( DTR ) of the DB 25 connector. Current consumption in active state is less than 75 ma and in power down mode, less than 20 ma.

After 5 seconds of inactivity, the unit automatically goes into power down mode.

ARC Modem
LOW-PWR 2.4

 

The LP9624 Modem (300, 1,200, and 2,400bps) runs from 6 to 15 VDC and ultra-compact and easy to install. This rugged little unit is designed for applications where power can be provided at pin 20 (DTR) of the DB-25 connector. Current consumption in active state is less than 70ma and in power down mode, less than 20ma making it ideal for those solar powered applications.

The Modem is ultra-compact and easy to install. The LP2.4 designed to run on extremely low current on pin 20 or optional power cable. The other end of the modem connects directly to your RJ-11 telephone cable and has Surge Suppression of 15,000 Volts.

The LP9624 operates at speeds of 300, 1,200, 2,400bps. The modem also features automatic answer and will connect to any speed modern, the modem automatically "falls back" to match the speed of the slower modern. The modem can also be locked to any of the 3 speeds.

The Modern is compatible with all communications software features automatic answer mode, so it can operate unattended in those remote sites.

It will operate over rotary or push-button lines since it works in tone or pulse dialing modes.

The Modem complies fully with the Hayes' Standard AT Command Set and the ITU V22 bis and V.22 standards, as well as Bell 103 and Bell 212A protocols.

The Modem connects directly to your DTE comm. port and operates on all telephone Lines.

Though it's tiny and needs little power, the Modem still supports all the standard Hayes AT commands including basic, dial and register commands. The Modern also uses industry - standard result codes that let you know if the commands worked properly.

This modem can replace the Bell 103, 212ALP, V.22bis modems and yet it is in a small case the size of a DB-25 connector head. This allows the modem to be used where space is at a premium.

After 5 seconds of inactivity, the unit automatically goes into power down mode.

 

  • Hayes " AT " command set compatible.
  • Data speed 2400, 1200, 300 baud
  • Automatic fall back
  • Non Volatile memory to store user configuration
  • RS 232 interface ( Only DTR, TXD, RXD, RTS lines supported )
  • Tone and Pulse dialing
  • FCC ( Part 15B and Part 68 ) approved
  • 6 to 18 VDC,
  • Low Power and Sleep mode
  • -20 to +80 C temp.
  • Enclosure size 2 1/4" x 3 1/4" x 7/8".

Line Power and Low Power PIC 9-21-98.jpg (13281 bytes)

15,000 Volts Surge protection

 

 

Specifications

Operation Full or half-duplex

Standard ITU V.22, V.22 bis,Bell 103, 212A

Interface-RS-232/V.24

Speed-2400, 1200, and 0-300 bps

Command Set AT compatible

Dialing. Tone and Pulse

Transmit Level- -12 dBm

Receive Sensitivity -40 dBm

Dropout Level- 43 dBm

Operating temper  (-10 to 60 -C)

Humidity-10 to 95% noncondensing.

Connector (l) DB25 female, (1) RJ-11 female

Enhanced AT Commands

Power -  power supplied on pin 20 of the DB25 RS232 connector
or use optional power cable
6 to 18 VDC, max. load (at turn on) 100 milliamps -
normal run is at 70 milliamps
power down mode runs at 22 milliamps.

15,000 Volts Surge protection

Size - .9" high by 2.3" wide by 3.4" deep

Weight 18 lb. (0.08 kg)

 

Part # ARC-LP24

jump to LP24 Manual PDF file

LOW-PWR 2.4
modem connector pin out

                       DB25 female
 

       2 = TX Transmit to modem
       3 = REC Receive from modem
       7 = Signal ground, negative voltage
     20 = 6 to 15 DC positive voltage
            22 to 70 m amps 

     Using optional power cable

     Green - lead negative Pin - 7
     Red - lead positive 6 to 28 VDC Pin -20

ARC ELECTRONICS

Phone us at 301-924-7400 EXT 25