4-channel conversion between 3.3 Vdc TTL/CMOS and RS232. TD, RD, RTS, CTS support. Powered by pin/signals 7(RTS), 4 (DTR), 3(TD); lines can be high or low, but must be present to power the converter. Pin 5 is SG for both connectors. Use with microcontrollers or PLCs supporting TTL.
Advantech
BB-232LPTTL33
ULI-227D3 - RS-232 (DB9F) to 3.3 Volt TTL (DB9 Male) Converter, Port Powered
£48.34
- Converts 2 channels in each direction from RS-232 to 3.3 V TTL/CMOS
- Data rate: up to 115.2 kbps baud
- Powered from RS-232 data/handshake lines (high or low) - no power supply needed
- RS-232 DB9 female connector; TTL/CMOS DB9 male connector
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Datasheets
Specification
General
| Technology | Serial |
Serial Communication
| TTL & Current Loop Converter | RS-232 to TTL 3.3 Vdc |
| Serial Port Connector Type | 1 x DB9 Female, 1 x DB9 Male |
| Serial Port Number | 1 |
| Maximum Serial Transmission Speed | 115.2 Kbps |
Environment
| Operating Temperature | 0 ~ 70°C (32 ~ 158°F) |
Power
| Power Input (Serial) | Port-Powered from RS-232 |
Accessory General
| Mounting | Inline |
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