The IFC-W1R-TTL-RS232-01 is an interface which converts communication signals between the TTL and RS-232 signal levels. This interface is ideal for providing RS-232 communication capabilities for micro controller circuits which currently do not have RS-232 level interface. The TTL to RS-232 Interface derives its power from the micro controller board. Connections include: Transmit Data (TXD); Receive Data (RXD); Request to Send (RTS); and Clear to Send (CTS).
Applications
- Construction Equipment, Mobile Equipment, Material Transport Vehicles, On-road Vehicles (Bus)
| Technical Specifications: | Line Interface (TTL to RS-232) |
| Order Codes: | P/N: IFC-W1R-TTL-RS232-01-000 (rail mount, no cable) Other variations are available without packaging, a choice of cable termination and varying cable lengths. |
| RS-232 SIDE | |
| Output Swing | +/- 8 V typical +/-22 mA |
| Input Voltage Range | +/-30 V maximum |
| Output Short Circuit Current | +/-22 mA |
| TTL SIDE | |
| Input Logic Low | 0.8 V |
| Input Logic High | 2.0 V min. |
| Output Logic Low | 0.4 V max. |
| Output Logic High | 3.5 V min. |
| Output Short Circuit Current | 10 mA Sourcing V out = GND 15 mA Sinking V out = VCC |
| Power Supply | |
| Operating Supply Voltage Resistance | 4.5 V min., 5.5 V max. |
| VCC Supply Current | 4 mA typical no load, 10 mA max. no load 15 mA typical 30 kOhm load on both Outputs |
| Pinout | |
| TTL: | 1 - GND 2 - +5 V 3 - TXD To RS-232 4 - RTS To RS-232 5 - RXD From RS-232 6 - CTS From RS-232 7 - +5 V 8 - GND |
| RS-232: | 2 - TX From TTL 3 - RX To TTL 4 - Connected to Pin 6 5 - GND 6 - Connected to Pin 4 7 - CTS to TTL 8 - RTS From TTL |
| Connectors: | TTL: 8-Pin Molex with 3 Feet Wires, Pre-Tinned on Ends RS-232: DB-9 Female |
| Packaging: | Rail Mount |
| Dimensions: | 80 x 30.8 x 40 mm (L x W x H including rail mount) |
| PDF Datasheet: |  Click icon for PDF datasheet. |