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The TD-36 485 is an industrial modem designed to allow cost effective and simple remote access to legacy serial industrial equipment. The AT command driven modem is capable of synchronising with a wide range of traditional modem negotiation standards providing data rates up to 33.6 kbit/s over both PSTN and 2- or 4-wire lease line circuits.
Designed with remote unmanned industrial locations in mind the modem can operate in extremes of temperature and electromagnetic field. The complete galvanic separation of all interfaces ensures earth loops and transients do not interfere with communication. 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.
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 provide resilience a second line interface allows a PSTN connection to be established in the event of a lease line failure.
The modem is also simple to configure using the Westermo TD-tool software; standard commands can easily be entered and saved configurations downloaded. RS-232 connections can be made using screw connections as well as the standard D-sub. The modem is designed to be connected to devices with no ability to control dialling so special functions like data dialling and DTR dialling are provided to enable these devices to automatically establish connection.
| Status: | Active |
| Article number: | 3618-0001 |
| Ports: | 1 x Public Switched Telephone Network (PSTN) 1 x Leased Line (LL) 1 x RS-422/485 1 x RS-232 |
| Description: | Industrial backup PSTN and Leased Line Modem |
| Warranty period: | 5 Years |
| PSTN: | CS 03 Part 1, issue 9 FCC part 68, TIA-968-A ETSI TS103 021-1, ETSI TS103 021-2, ETSI TS103 021-3 AS/ACIF S002, AS/ACIF S006 |
| Service life, operating: | Operating, 10 year |
| EN 55024: | Immunity IT equipment |
| EN 55022: | Emission IT equipment |
| EN 61000-6-1: | Immunity residential environments |
| EN 61000-6-2: | Immunity industrial environments |
| EN 61000-6-4: | Emission industrial environments |
| FCC part 15: | Class A |
| EN 50121-4: | Railway signalling and telecommunications apparatus |
| IEC 62236-4: | Railway signalling and telecommunications apparatus |
| EN 61000-4-2, ESD: | Enclosure contact, ± 6 kV Enclosure air, ± 8 kV |
| IEC 61000-4-3, RF field AM modulated: | Enclosure 20 V/m @ (80 – 2700) MHz 1 kHz sine, 80% AM |
| 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 61000-4-11, Voltage dips and interruption: | AC power ports 10 & 5 000 ms, interruption 10 & 500 ms, 30% reduction 100 & 1 000 ms, 60% reduction |
| EN 61000-4-16, Mains freq. 50 Hz: | Signal ports, 100 V 50 Hz line to earth |
| 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: | Class A |
| FCC part 15, radiated RF emission : | Class A |
| EN 55022, conducted emission: | AC power ports, class B PSTN, class B DC power ports, class B |
| FCC part 15, conducted emission: | AC power ports, class B |
| 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) |
| Temperature, operating: | –25 to +70°C (–13 to +158°F) |
| Temperature, storage: | –40 to +70°C (–40 to +158°F) |
| Humidity, operating: | 5 to 95% relative humidity non condensing |
| Humidity, storage: | 5 to 95% relative humidity non condensing |
| Enclosure: | UL 94, PC / ABS, flammability class V-1 |
| Dimensions (W x H x D): | 55 x 100 x 132 mm (2.16 x 3.93 x 5.19 in) |
| Weight: | 0.36 kg |
| Degree of protection: | IP 20 |
| Cooling: | Convection |
| Mounting: | Horizontal on 35 mm DIN-rail |
| 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 |
| Rated voltage: | 20 to 250 VDC 24 to 240 VAC |
| Operating voltage: | 18 to 300 VDC 22 to 264 VAC |
| Rated current: | 125 mA @ 18 VDC 15 mA @ 110 VDC 8 mA @ 250 VDC 120 mA @ 22 VAC 35 mA @ 95 VAC 28 mA @ 240 VAC |
| Rated frequency: | DC |
| Inrush current: | 0.45 A²s |
| Startup current: | 0.25 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 |
| 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 PSTN line, 2 kVrms 50 Hz 1 min Leased 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 |
| Electrical specification: | One change over contact |
| Switching voltage : | Max 40 V AC/DC |
| Switching current : | Max 500 mA AC/DC |
| Electrical endurance: | 5 x 10^5 operations at 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 PSTN line 2, kVrms 50 Hz 1 min Leased 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 |