MD-N33
Installation Instructions
Data Communication Modem
1
0706-00
1.
Introduction
The MD-N33 is a data communication modem intended for data
transfer over worldwide PSTN networks. It is intended to link RS232
based serial communication devices over dial-up telephone lines
in applications where these are located on remote areas.
The MD-N33 is a V.34/33.6K modem complies with worldwide
telecom requirements. The modem is AT Command set compatible
and can be configured from any PC based communication
program
The following pages outline the installation and configuration
instructions for your new MD-N33 modem.
2.
Features
•
V.34/33.6K
•
AT command compatibility
•
60-character command line buffering
•
Auto-dial, redial, and auto-answer
•
Pulse or tone dial
•
Remote hang-up detection
•
Digital PBX detection and protection
•
Global approvals
•
Buzzer for call progress monitoring
•
LED indication of telephone line status
•
LED indication of power supply
•
Intelligent DAA technology detects line status
•
Industry-standard error correction and data compression
•
DTMF detection and distinctive ring
•
Non Volatile RAM (memory) to store user profiles
•
Line protection circuitry included
3.
Technical Specifications
3.1
Data Characteristics
Data format: Serial RS232 interface
Data -
V.34, V.32bis, V.32, V.22bis, V.22, V23, V.21, Bell
212A & Bell103
Error Correction: V.42 (LAP-M or MNP 2-4)
Data Compression: V.42bis, MNP 5
Fax:
V.17, V29, V.29ter, V.21 ch.2
Class 1 and 1.0 commands
Modes of Operations: Full duplex over dial-up lines; data mode,
command mode,
Online command mode
Advanced -Extension pickup detection, remote hang-up
detection, line-in-
Use detection, digital PBX detection and protection
Flow Control -
XON/XOFF (software), RTS/CTS (hardware)
Command Buffer - 60 characters
Telephony - V.253 commands: V.253
2-bit and 4-bit ADPCM, 8-bit linear PCM, and 4-bit
IMA coding 8 kHz sample rate
Concurrent DTMF, ring, and Caller ID detection
3.2
Electrical Characteristics
Input
Power
:
10
-
16 V DC
Power Consumption: Typical:
70
mA
Maximum: 100 mA
Buzzer:
For call progress monitoring
LED -
Blue LED indication of telephone line status
Red LED indication of power supply
3.3
Environmental Characteristics
Operating Environment: indoor use
Operating Temperature: 0°C to 63°C (32°F to 145°F)
Operating Humidity: 0 to 95% (Non-Condensing)
3.4
Physical Characteristics and Interface
Dimensions: 110mm(4.3")x63mm(2.5")Wx39mm(1.5")
Weight: 0.214 Lbs. (97g)
Phone -
RJ-11 jack for phone line
Data -
D9 Male connector, RS232 link:
1
–
DCD
2 – RD
3 – TD
4 – DTR
5 – GND signal
6 – DSR 7 – RTS
8 – CTS
9 – NC
4.
Connection and Configuration
4.1
Hardware Requirements
The following are the required hardware units used to connect the
MD-N33 to either the PC or remote Unit.
•
Crossed linked RS-232 cable - 9 pin D type female plugs on
both sides.
•
Standard telephone cable- RJ11 plugs on both sides.
•
12V (200mA) DC power adaptor, connected to the unit's DC
jack.
•
MD-N14 RS485 to RS232 Converter (for RS485 units)
4.2
General:
Both Md-N33's, the one connected to the remote unit and the one
connected to the PC need to be configured while connected to
the PC, prior to remote installation.
Figure 1: Front View of the MD-N33
Figure 2: Rear View of the MD-N33
D9-RS232 Jack
Power Jack
RJ-11 Jack
