Cable Required — Unconditioned twisted pair between converters: 2 or 4 wires (1 or 2 pairs)
Data Format — Transparent
Distance (Maximum) — Between RS-232 device and converter: 50 ft. (15.2 m), but converters not directly attached will be underpowered;
Between non-RS-232 device and converter: 9 mi. (14.4 km)
Enclosure — ABS plastic
Environmental Operation — Temperature: 32 to 122º F (0 to 50º C);
Humidity: 5 to 95% noncondensing
Hardware Flow Control Signaling — Raise DSR in response to DTR; raise CD in response to carrier; raise CTS in response to RTS (after no delay or 8-ms delay, user-selectable); carrier is either constantly on or controlled by RTS, user-selectable
Operation — Transparent to 2-wire half-duplex or 4-wire full- or half-duplex
Protocol — Asynchronous
Software Flow Control — Transparent
Speed (Maximum) — Transparent to 115.2 kbps
Surge Protection — Internal Silicon Avalance Diodes dissipate surges up to 600 watts per wire within 1 ms
User Controls — (2) internal 4-position DIP switches for configuration
CE Approval — Yes
Interface — To devices: RS-232: Pinned according to TIA-574 on DB9, DCE;
To line: 2- or 4-wire RS-485
Power — From the RS-232 data and control signals
Size — 2.5"H x 1.2"W x 0.8"D (6.4 x 3 x 2 cm)