Many electronic devices expose the UART only as logic (TTL) levels. In order to interface with a traditional RS232 port, the signals must be converted to higher, bipolar voltages. That’s what the Dongle does. It is self-powered; it does not need a separate power source. It has digital input and output lines on a terminal block, so any device can be wired in. It also has shunts to change the Dongle from Normal operation to Null modem. The RS232 connector is a standard DSub-9.
- Baud rate to 250 kbps.
- Operating voltage: 3 to 5.5 Vdc.
- Standard DsubB-9 female DCE connector.
- Can be easily configured for straight or null modem.
- Compact size: 2.75 × 1.30 × 1.00 in = 80 × 33 × 25 mm.
- Power LED.
- Slide on-off switch.
- Signals are diode protected.
- Powered by two CR2032 batteries.
- 15 kV ESD protected.
- Meets EIA/TIA-232 and V.28/V.24 specifications.
Any instrument ordered from BOE may be returned for full refund, less shipping costs, within 30 days of delivery, provided that the instrument has not, in the opinion of BOE been damaged or misused. An RMA number is required in all cases. See our Standard Terms & Conditions – Instruments for more details.
There are volume breaks at 5, 10, 25, and 50 units.