The Async RS-232 to 2-Wire RS-485 Converter provides excellent versatility in a compact package. Requiring no AC power or batteries for operation, the Converter
supports asynchronous RS-232 data rates to 115.2 kbps over one unconditioned twisted pair in half-duplex mode. The line is automatically turned around from receiving to transmitting upon the beginning of receiving of RS-232 data. No RS-232 control signal is
needed to turn around the line.
The Converter is equipped with either male or female DB25 connectors for RS-232. For the twisted pair connection, you can choose either a 4-wire terminal block or an RJ-45 female connector. Silicon Avalanche Diodes provide 600 watts per wire of protection against harmful data-line transient surges.
Transmission Format — Asynchronous
Data Rate — Up to 115,200 bps
Distance — Up to 4000 feet (1219.2 m) on Category 5 solid cable
Connectors — IC520A-F: (1) DB25 female, (1) 4-screw terminal block;
IC520A-M: (1) DB25 male, (1) 4-screw terminal block;
IC521A-F: (1) DB25 female, (1) RJ-45 female;
IC521A-M: (1) DB25 male, (1) RJ-45 female
Interface — RS-232 is DCE
Transmit Line — 2-wire unconditioned twisted pair (24 AWG, solid, unshielded twisted pair [CAT-5])
Transmit Mode — 2-wire half-duplex
Surge Protection — 600 W power dissipation at 1 ms
Temperature — 32 to 122 °F (0 to 50 °C)
Humidity — 5 to 95%, noncondensing
Power — Draws operating power from RS-232 data and control signals; no AC power or batteries required
Size — 0.7©H x 2.1©W x 2.7©D (1.7 x 5.3 x 6.9 cm)
Weight — 0.1 lb. (0.06 kg)
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