
MPP2400NMPP2400N
MPP2400N
MPP2400NMPP2400N
Wall Mount, Port Powered Modem
Installation and Operating Manual
Kessler-Ellis Products Co.
Description:
The MPP-2400N Modem is ultra-compact and easy to install. It needs no batteries or AC power because
it’s designed to run on the DC power provided from the SUPERtrol II interface to which it attaches. The
Modem operates at speeds up to 2400 bps. If you are connected to a slower speed modem on the other end
of the line, the MPP-2400 automatically “falls back” to match the speed of the slower modem so your data
transmission is not interrupted. The MPP-2400 also features automatic answer, so it can operate unattended.
It will operate over rotary or touch tone lines since it works in tone or pulse dialing modes. The Modem is very
small and simple to install. It offers a standard DB-9 male connector for your RS-232 port connection and an
RJ-11 jack for your telephone cabling. The MPP-2400 complies fully with the Hayes Standard AT Command
Set and the ITU V.22 bis and V.22 standards, as well as Bell 103 and Bell 212A protocols.
Features
❑ Operates on All Telephone Lines
❑ RS-232 Powered from SUPERtrol II
❑ 2400 BPS Operation
❑ Automatic Fallback
❑ Compatible with All Communications
Software
❑ Automatic Answer
❑ Tone & Pulse Dialing
❑ Compact Wall Mount Enclosure
❑ FCC Approved
Table of Contents
Description........................................................... 1
Safety Instructions ............................................... 2
Introduction .......................................................... 3
Installation............................................................ 3
Dimensions .......................................................... 3
Specifications....................................................... 3
Wiring Terminations............................................. 3
Typical Application............................................... 3
Part Number Breakdown ..................................... 3
99702 12/21/99
MPP2400N
KESSLER-ELLIS PRODUCTS
10 Industrial Way East
Eatontown, NJ 07724
800-631-2165 • 732-935-1320
Fax 732-935-9344
http://www.kep.com
1

SAFETY INSTRUCTIONS
!
The following instructions must be observed.
• This instrument was designed and is checked in accordance with
regulations in force EN 60950 (“Safety of information technology
equipment, including electrical business equipment”).
A hazardous situation may occur if this instrument is not used for its
intended purpose or is used incorrectly. Please note operating
instructions provided in this manual.
• The instrument must be installed, operated and maintained by
personnel who have been properly trained. Personnel must read and
understand this manual prior to installation and operation of the
instrument.
• The manufacturer assumes no liability for damage caused by incorrect
use of the instrument or for modifications or changes made to the
instrument.
Technical Improvements
• The manufacturer reserves the right to modify technical data without
prior notice.
2

INTRODUCTION:
12345
6789
1• N.C.
2• In From Computer
3• Out To Computer
4 • N.C.
5 • Ground
6 • N.C.
7 • N.C.
8 • N.C.
9 • + 6.5V to 12 VDC @75 mA
The MPP2400N is a compact and easy to install
wall mount modem. It needs no batteries or AC
power because it’s specially designed to run on
extremely low current provided by the flow
computer.
The Package Includes:
Make sure that you have the following items. If
anything is missing, please contact your supplier.
• MPP2400N
• This User’s Manual
Features:
The MPP2400N offers the following features:
• Operates on all telephone lines
• Operating power is provided by the flow
computer
• 2400, 1200 and 300 bps operation
• Automatic fallback
• Compatible with all comunications software
• Automatic answer
• Tone and pulse dialing
• Compact size
SPECIFICA TIONS:
Operation: Full- or Half-Duplex
Standards: ITU V.22, V.22 bis, Bell 103/
212A
Interface: RS-232/V.24
Baud Rate: 2400, 1200, 0-300 bps
Command Set: AT compatible
Dialing: Tone and Pulse
Transmit Level: -12 dBm
Receive Sensitivity: -70 dBm
Dropout Level: -43 dBm
Operating Temp.: 32 to 104 °F (0 to 40 °C)
Storage Temp.: -40 to 212 °F (-40 to 100 °C)
Humidity: 10 to 95% (non-condensing)
Connectors: (1) DB-9 male, (1) RJ-11 female
Power: 7-12VDC (RS-232 pins 8 & 9,
75mA)
Size: 3.0"H x 5.1"W x 2.4" D
Weight: 0.5 lb.
Wiring Terminations
RJ-11 DB9 RS-232
INSTALLATION:
To Install The MPP2400N:
1. Mount the MPP2400N near the flow
computer.
2. Connect the RJ-11 jack to the telephone
line. Note the phone number.
3. Configure the flow computer RS-232 port
with all information necessary for it to
operate with the MPP2400N. The flow
computer will test that the modem is
responding.
4. Dial the telephone number assigned to the
MPP2400N and issue properly formatted
commands for the flow computer.
Dimensions
Mounting holes molded directly under cover
screws. Max. screw head .29" (Typ. 4 places)
4.47
(113.5)
2.5
(63.5)
3.15
(80)
Tip
Ring
1 2 3 4 5 6
T ypical Application
PC
MPP-2400
MPP-2400N
SUPERtrol II
PRINT
TEMP4PRE 13RATE2TOTAL
CLEAR•MENU
1
GRAND6SCROLL7PRE 28DENS
Flowmeter Temperature
5
HELP
TIME
0
9
–
Transmitter
ENTER
5.125 (130.2)
TOP VIEW
0.43
(11)
0.18 (5)
SIDE VIEW
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6789
2.43
(61.7)
Part Number Breakdown
How To Order
EXAMPLE MPP2400N
Series
MPP-2400N Wall Mount, Port Powered Modem
3