Description
Item Description:
The FT3120-E4S40 Smart Transceiver integrates a high-performance Neuron® Core with a free topology twisted-pair transceiver in a 32-SOIC housing. It only requires a transformer like the FT-X1, FT-X2 or FT-X3 .
Product Specs:
| Brand | Echelon |
| MPN | FT3120-E4S40 |
| Model | FT 3120 |
| Data Communications Type | Differential Manchester coding |
| Network Polarity | Polarity insensitive |
| Isolation Between Network and 0-60Hz, 60 seconds | 1000Vrms |
| Isolation Between Network and 0-60Hz, continuous | 277Vrms |
| EMI | Designed to comply with FCC Part 15 Level B and EN55022 Level B |
| ESD | Designed to comply with EN 61000-4-2, Level 4 |
| Radiated Electromagnetic Susceptibility | Designed to comply with EN 61000-4-3, Level 3 |
| Fast Transient/Burst Immunity | Designed to comply with EN 61000-4-4, Level 4 |
| Surge Immunity | Designed to comply with EN 61000-4-5, Level 3 |
| Conducted RF Immunity | Designed to comply with EN 61000-4-6, Level 3 |
| Safety Approvals (FT-X1/FT-X2 Communication Transformer) | Recognized by UL to Standards UL 60950, 2000 and CSA C22.2 No. 60950, 2000; Recognized by TÜV EN 60950 |
| Transmission Speed | 78 kilobits per second |
| Number of Transceivers Per Segment | Up to 64 |
| Network Wiring | 24 to 16AWG twisted pair |
| Network Length in Free Topology | 1000m (3,280 feet) maximum total wire with one repeater
500m (1,640 feet) maximum total wire with no repeaters 500m (1,640 feet) maximum device-to-device distance |
| Network Length in Doubly Terminated Bus Topology | 5400m (17,710 feet) with one repeater
2700m (8,850 feet) with no repeaters |
| Maximum Stub Length in Doubly-Terminated Bus Topology | 3m (9.8 feet) |
| Network Termination | One terminator in free topology; two terminators in bus topology |
| Power-down Network Protection | High impedance when unpowered |
| Physical Layer Repeater | The FT 3120/FT 3150 Free Topology Smart Transceiver cannot be used to implement a physical layer repeater. In the event that the limits on the number of transceivers or total wire distance are exceeded, FTT-10A transceivers may be used to create physical layer repeaters. |
| Operating Temperature | -40 to 85°C |
| Operating Humidity | 25-90% RH @50°C, non-condensing |
| Non-operating Humidity | 95% RH @ 50°C, non-condensing |
| Vibration | 1.5g peak-to-peak, 8Hz-2kHz |
| Mechanical Shock | 100g (peak) |
