The CVT-485-3 is a compact, rugged, industrial-grade, optically-isolated, port-powered RS232 to RS485 converter, which can be used to convert any standard RS232C port into a 2-wire half-duplex RS485 port and vice versa. This industrial opto-isolated RS232 to RS485 converter supports multi-drop RS485 networks and can be used to communicate with one loop of up to 64 units of RS485 devices. It operates within temperature range of -40ºF to 185ºF (-40ºC to 85ºC), features 600W surge protection, 15kV static protection and 2500V opto-isolation circuitry, which effectively protect your RS-232 devices from ground loops, noise problems, transient surges, remote lightning, and spikes. The device is efficiently powered from the RS232 data line, and it supports data direction auto-turnaround, which automatically enables the RS485 transceiver when data is present on the RS232 side. Therefore, it requires no external power, software drivers or flow control. The ALL-IN-ONE rugged terminal block, which was professionally designed for different requirements such as selectable 120-Ohm terminator and optional 5V DC input, makes the unit an ideal solution for all types of installations.
CommFront's products quality is ensured by our ISO-9001 quality control system (Cert No. SG12/04213, strictly certified by SGS), and we back our high-quality products with a 5-year replacement warranty and a 30-day risk-free money-back guarantee.
- Rugged industrial-grade port-powered opto-isolated RS232 to RS485 converter.
- Converts RS232 to 2-wire RS485 and vice versa.
- Port-powered, no external power or RTS, DTR required.
- Industrial grade enclosed in a rugged, rustless ABS housing.
- 2500V optical isolation.
- Supports multi-drop RS485 networks (up to 64 nodes).
- 1.2K to 57.6K Baud operation (auto-sensing & self-adjusting).
- Operating temperature: -40ºF to 185ºF (-40ºC to 85ºC).
- Accepts external 5V DC regulated power if the port-power is insufficient.
- Plug and play (hot-pluggable, data format auto-sensing & self-adjusting).
- Data direction auto-turnaround, no software drivers or flow control is required.
- Built-in selectable 120Ω terminator for system reliability and easy installation.
- Built-in 600W surge protection, 15kV static protection and circuit protection.
- ALL-IN-ONE rugged terminal block designed for different requirements.
- Surface Mount Technology manufactured to RoHS and ISO-9001 standards.
- Safety: Strictly certified by TUV (Cert No. SG-CE-090012).
- 5-year manufacturer's warranty.
|Compatibility:||EIA/TIA RS-232C standard and RS-485 standard|
|Power Source:||Port power from RS232 data line|
|Current Consumption:||Less than 10mA|
|Optical Isolation:||2500Vrms (AC, 1 min)|
|Baud Rates:||1,200 to 57,600bps (auto-sensing & self-adjusting)|
|Distance:||RS-232 side: 16 ft (5m); RS-485 side: Depending on power from RS232 port, will transmit up to 4000 ft (1.2km) at 19,200bps|
|Connector:||RS232 Side: DB-9 Female; RS485 Side: DB-9 Male; Termination Board: DB-9 Female and a 4-Way Terminal Block|
|Maximum number of drops:||64|
|End of Line Terminator:||120Ω (built-in, selectable)|
|Static protection (ESD):||Up to 15KV|
|Dimensions (H x W x D):||0.6 x 1.3 x 3.5 in (16 x 32 x 88 mm)|
|Weight:||1.36 oz (39 g)|
|Operating Temperature:||-40ºF to 185ºF (-40ºC to 85ºC)|
|Operating Humidity:||Up to 90% RH (no condensation)|