Euro Tech (Far East) Ltd.--

The IDW-90 is an industrial IDSN modem designed to allow cost effective and simple remote access to legacy serial industrial equipment. The AT command driven modem is capable of synchronizing with a wide range of traditional modem negotiation standards providing data rates of up to 128 kbit/s.

With the built-in V.34 analogue modem the IDW-90 can not only connect to ISDN based modems but also with the PSTN units. The unit even has support for V110 which enables GSM-modems to be connected as well. The complete galvanic separation of all interfaces ensures earth loops and transients do not interfere with communication.

Firewalls are not an issue as data does not use the internet and with call back security it is impossible for either accidental or deliberate access to any equipment attached to the modem. To keep visits to the site to a minimum a watchdog monitors the modem ensuring constant readiness, and remote re-configuration means that changes to settings can be handled without a site visit.

The modem is also simple to configure using the Westermo IDW-tool software; standard commands can easily be entered and saved configurations downloaded. RS-232 connections can be made using the standard D-sub whereas the 422/485 connections uses a standard screw terminal. The modem is designed to be connected to devices with no ability to control dialing so special functions like data dialing and DTR dialing are provided to enable these devices to automatically establish connection.

IDW-90

Product description
Status	Active
Article number	3620-0001
Ports	1 x RS-232 1 x RS-422/485 1 x ISDN
Description	Industrial ISDN Modem
Warranty period	5 Years
Standard compliance
ISDN	TBR-3
Reliability prediction
Service life, operating	Operating, 10 year
EMC (Electromagnetic Compatibility)
EN 61000-6-2	Immunity industrial environments
EN 55024	Immunity IT equipment
EN 61000-6-3	Emission residential environments
FCC part 15	Class B
EN 50121-4	Railway signalling and telecommunications apparatus
IEC 62236-4	Railway signalling and telecommunications apparatus
EMC specifications
EN 61000-4-2, ESD	Enclosure contact, ± 6 kV Enclosure air, ± 8 kV
IEC 61000-4-3, RF field AM modulated	Enclosure: 10 V/m 80% AM (1 kHz), 80 – 1 000 MHz 20 V/m 80% AM (1 kHz), 80 – 2 000 MHz
ENV 50204, RF field 900 MHz	Enclosure, 20 V/m pulse modulated 200 Hz, 900 ± 5 MHz
EN 61000-4-4, fast transients	Signal ports, ± 2 kV Power ports, ± 2 kV
EN 61000-4-5, surge	Signal ports unbalanced, ± 2 kV line to earth, ± 2 kV line to line Signal ports balanced, ± 2 kV line to earth, ± 1 kV line to line Power ports ± 2 kV line to earth, ± 2 kV line to line
EN 61000-4-6, conducted RF immunity	Signal ports, 10 V 80% AM (1 kHz), 0.15 – 80 MHz Power ports, 10 V 80% AM (1 kHz), 0.15 – 80 MHz
EN 61000-4-8, power frequency magnetic field	Enclosure, 100 A/m, 50 Hz, 16.7 Hz & 0 Hz
EN 61000-4-9, pulsed magnetic field	Enclosure, 300 A/m, 6.4 / 16 ms pulse
EN 61000-4-16, Mains freq. 50 Hz	Signal ports, 100 V 50 Hz line to earth
SS 436 15 03, Mains freq. 50 Hz	Signal ports, 250 V 50 Hz line to line
EN 61000-4-29, voltage dips and interruption	DC power ports: 10 & 100 ms, interruption 10 ms, 30% reduction 10 ms, 60% reduction+20% above & –20% below rated voltage
EN 55022, radiated RF emission	Enclosure, class B
FCC part 15, radiated RF emission	Enclosure, class B
EN 55022, conducted emission	DC power ports, class B
Safety
EN 60950-1, dielectric strength	Signal port to other isolated ports, 2 kVrms 50 Hz 1 min Power port to other isolated ports 3 kVrms 50 Hz 1 min 2 kVrms 50 Hz 1 min (@ rated power <60 V)
Safety	EN 60950-1, IT equipment
Climatic
Temperature, operating	+5 to +55ºC (+41 to +131ºF)
Temperature, storage	–20 to +85ºC (–13 to +185ºF)
Humidity, operating	5 to 95% relative humidity
Humidity, storage	5 to 95% relative humidity
Enclosure
Enclosure	UL 94, PC / ABS, flammability class V-1
Dimensions (W x H x D)	34 x 123 x 121 mm (1.33 x 4.84 x 4.76)
Weight	0.21 kg
Degree of protection	IP 21
Cooling	Convection
Mounting	Horizontal on 35 mm DIN-rail
Mechanical
IEC 60068-2-6, vibration	Operating, 7.5 mm, 5 – 8 Hz 2 g, 8 – 500 Hz
IEC-60068-2-27, shock	Operating, 15 g, 11 ms
Interface specifications, power
Rated voltage	12 to 48 VDC 12 to 34 VAC
Operating voltage	10 to 60 VDC 10 to 42 VAC
Rated current	110 mA @ 12 VDC 55 mA @ 24 VDC 30 mA @ 48 VDC
Rated frequency	DC / AC 48 – 62 Hz
Inrush current	0.22 A2s
Startup current	0.30 Apeak
Polarity	Polarity independent
Isolation to	All other ports 3 kVrms 50 Hz 1 min
Connection	Detachable screw terminal
Connector size	0.2 – 2.5 mm2 (AWG 24 – 12)
Shielded cable	Not required
Integrated Services Digital Network (ISDN)
Electrical specification	ISDN BRI: ITU-T I.430
Data rate	300 bit/s – 128 kbit/s
Protocol	Euro ISDN /DSS1, Leased line B1 / B2 V.110 asynchronous, HDLC async to sync, HDLC transparent, Byte transparent X.75- SLP, V.120, X.31 B channel, X.31 D channel, ML-PPP
Protection	Installation Fault Tolerant (up to ±60 V)
Isolation to	Power port 3 kVrms 50 Hz 1 min RS-232 2 kVrms 50 Hz 1 min RS-485 2 kVrms 50 Hz 1 min I/O 2 kVrms 50 Hz 1 min
Connection	RJ-45
Shielded cable	Not required
Interface specifications, RS-232
Electrical specification	EIA/TIA-232
Data rate	1 200 bit/s – 115.2 kbit/s
Data format	7 or 8 data bits, Odd, even or none parity, 1 or 2 stop bits; Σ 9 – 12 bits
Protocol	Transparent
Retiming	Yes
Transmission range	Cable length ≤15 m / 49 ft
Isolation to	Power port 3 kVrms 50 Hz 1 min ISDN line 2 kVrms 50 Hz 1 min I/O 1.5 kVrms 50 Hz 1 min
Galvanic connection to	RS-485
Connection	9-pin D-sub female (DCE)
Shielded cable	Not required
Miscellaneous	Do not connect RS-232 and RS-422/485 simultaneously
Interface specifications, RS-422/485
Electrical specification	EIA RS-485 2-wire or 4-wire twisted pair
Data rate	300 bit/s to 115.2 kbit/s
Data format	7 or 8 data bits, Odd, even or none parity, 1 or 2 stop bits, Σ 9 – 12 bits
Protocol	Transparent
Retiming	Yes
Turning time	50 μs (half duplex)
Transmission range	<1200 m, depending on data rate and cable type (EIA RS-485)
Settings	120 Ω termination and failsafe biasing 680 Ω
Protection	Installation Fault Tolerant (up to ±60 V)
Isolation to	Power port 3 kVrms 50 Hz 1 min ISDN 2 kVrms 50 Hz 1 min I/O 2 kVrms 50 Hz 1 min
Galvanic connection to	RS-232
Connection	Detachable screw terminal
Connector size	0.2 – 2.5 mm2 (AWG 24 – 12)
Shielded cable	Not required
Miscellaneous	Do not connect RS-232 and RS-422/485 simultaneously
Interface specifications, I/O / Digital input
Electrical specification	Opto isolated input
Input voltage range	0 – 60 VDC
Input current	5 mA @ 60 VDC
Input inactive	Uin <2.5 V
Input active	Uin >5.0 V
Transmission range	Cable Length ≤ 15 m
Connection	Detachable screw terminal (DCE)
Connector size	0.2 – 2.5 mm2 (AWG 24 – 12)
Isolation to	Power port 3 kVrms 50 Hz 1 min ISDN line 2 kVrms 50 Hz 1 min RS-232 2 kVrms 50 Hz 1 min RS-485 2 kVrms 50 Hz 1 min I/O output 2 kVrms 50 Hz 1 min
Shielded cable	Not required
Interface specifications, I/O relay output
Electrical specification	One change over contact
Switching voltage	Max 40 VAC/DC
Switching current	Max 500 mA AC/DC
Electrical endurance	5 x 105 operations @ 20 W / 20 VA Resistive load
Transmission range	Cable Length ≤15 m
Connection	Detachable screw terminal (DCE )
Connector size	0.2 – 2.5 mm2 (AWG 24 – 12)
Isolation to	Power port 3 kVrms 50 Hz 1 min ISDN line 2 kVrms 50 Hz 1 min RS-232 1.5 kVrms 50 Hz 1 min RS-485 1.5 kVrms 50 Hz 1 min I/O input 2 kVrms 50 Hz 1 min
Shielded cable	Not required