IDM 50B

Multi-Standard Modem

Features

  • A programmable modem for SCADA or power utility communication network
  • Multi-standard support: ITU R.35, R.37, R.38A, R.38B, V.21, V.23, V.29, Bell 103 and 202
  • Fully programmable via Hayes AT command set
  • Specialized Line, Power Line Carrier or radio communication
  • Half or full-duplex operating mode

Description

IDM 50B is a frequency shift keyed (FSK) and quadrature amplitude modulation (QAM) modem for asynchronous and synchronous data transmission in 300-3400 Hz voice band. It is highly immune to interference and noise and permit extensive voice-band communication link utilization.
The modem supports several international standards ITU V.21, V.23, R.35, R.37, R.38A, R.38B, V.29, Bell 103, Bell 202 and proprietary Cegelec 1200/600Bd and Indactic 33 communication standards.
The modem can operate in half or full-duplex, point-to-point or point-to-multipoint mode. When using FSK modulation receive and transmit channels may be independently set.
The modem employs advanced DSP technology, thus offering high service flexibility through programmable features. Software configuration is performed via Hayes AT command set. AT commands can be initiated from any terminal application using ITU CCITT V.24 & V.28 (EIA RS-232C) communication interface. Additionally, for easy firmware upgrade a bootstrap loader is provided.

Application

IDM 50B is designed for use in SCADA systems mainly based upon power utility communication networks. Depending of modulation standard it can communicate through specialized, private or leased lines, radio links and power lines (PLC).

Mounting Types

IDM 50B is available as a desktop modem or in two different types of standard 19 inch rack:

  • 1U rack with 1, 2 or 3 modems per rack;
  • 3U rack with 10,12 or 14 modems per rack, and additional blank front plates covering unused slots.

All connectors at the rear side are accessible at the back openings.

TECHNICAL SPECIFICATION

Operation
TypeData transmission on audio frequency analog medium.
MediaLeased line, Radio, PLC
Modes- Asyncronous or synchronous, Point-to-point, multipoint, 2-wire or 4-wire
- Support for synchronous Indactic 33 protocol

 

Standards
FSKTransmission
rate
Bd
Frequency
deviation
Hz
Channel
spacing
(bandwidth)
Hz
Channel mean frequency
adjustable in steps of 120Hz
Lowest                    Highest
Hz                             Hz
ITU R.3550± 301204203300
ITU R.37100± 6024048003120
ITU R.38B200± 903605403060
ITU R.38A200/300± 1204806003480
ITU V.21300± 1004001080/1750
ITU V.23 /0/1/2/3/4/5600/1200± 200/400800/16002850/1500/1700/1140/2850/1800
Bell 103300± 1004001170/2125
Bell 2021200± 50020001700
QAMTransmission
rate
Bps
Symbol rateConstellation
points
Carrier
frequency
Hz
Mode
ITU V.294800240041700Half duplex
7200240081700Half duplex
96002400161700Half duplex

 

Interfaces
DTE interface- ITU CCITT V.24 & V.28 (EIA RS-232C), DB9 (female) connector
- Signals: DCD, RD, TD, DTR, SG, DSR, RTS, CTS, RI
- Character length: 5-9 data bits, 1 start, 1 stop
- RTS/CTS delay: adjustable by 1ms step within range of 40-6825ms
- Option to switch on fail relay if DCD off
- Option to transmit on RTS
- Configuration: AT command set
Analog line- DB15 (female) connector;
- 600Ω or high impedance with return loss < 0.2;
- Transmission level: 0 to -32dBm, programmable by 1dB step
- Receive level: 0 to -40dBm, programmable by 1dB step, sensitivity min. - 48dBm
- Radio control: half-duplex control and squelch detection
Power supply2-position screw plug type (for 2-2.5mm2 wire)

 

General
LED indicationPWR, TXD, RXD, RTS, DCD
Power supply9-18VDC, 9-12VAC , model -12
18-36VDC, 14-23VAC, model -24
36-60VDC, 25-50VAC, model -48
IsolationTransformer up to 1500V
Immunity to noise- Peak pulse noise: 100V Peak
- Effective interference at 50 Hz: 80V rms
TemperatureOperation and storage: -10° to +50 °C
Dimensions- desktop: aluminium enclosure 112x30x170mm
- 19'' rack: EUROCARD PCB, 160x100mm 3HE, 6T in 1U and 3U rack

ORDERING INFORMATION

ModelSKUDescriptionPrice 
IDM-50B modem card10131Frequency shift keyed (FSK) and quadrature amplitude modulation (QAM) modem
€390 

*Please note that all accessories are sold separately.

ACCESORIES

ModelSKUDescriptionPrice 
ENCL-MC-3U84HP101333U 84HP Mount Chassis, for 19-inch Rack
€294 
ENCL-MC-1U84HP101321U 84HP Mount Chassis, for 19-inch Rack
€176 
ENCL-DESK-IDM10156Desktop aluminium enclosure for IDM 50B
 €27.60
ENCL-MS-3U6HP-IDM101373U 6HP Mounting Set for IDM 50B, for 3U 84HP Mount Chassis
€7.60
ENCL-MS-1U28HP-IDM101381U 28HP Mounting Set for IDM 50B, for 1U 84HP Mount Chassis
€7
ENCL-MS-3U6HP-BP101773U 6HP Mountinf Set, Blank Plates, for 3U 84HP Mount Chassis
€5

5.00

5.00

Add To Cart

SKU# 10177
ENCL-MS-1U28HP-BP101801U 28HP Mounting Set, Blank Plates, for 1U 84HP Mount Chassis
€5
ENCL-DIN35-H12027135mm DIN Rail Holder, Aluminium
€4
PS-4830-3U6HP101783U 6HP Power Supply, DC48V 30W, AC88-264V, for 3U 84HP Mount Chassis
€150

150.00

150.00

Add To Cart

SKU# 10178
PS-4805D-1U28HP103211U 28HP Power Supply, 2x DC48V 5W, AC85-264V, for 1U 84HP Mount Chassis
€120

Product Documents