The TINY TOOLS SRC-2 interfaces two optically isolated inputs and two SPST relays to a RS-232 or USB port. The SRC-2 can notify a user's PC software program that any of two optically isolated inputs have been opened or closed and allows your software to control two SPST, 1-amp relays. Communication with the SRC-2 is accomplished via short "burst" type ASCII commands from the users PC.

Also, two units may be operated in a standalone mode (master/slave mode) to form a "Relay extension cord," with two channels of control in each direction. The unit communicates using RS-232 at baud rates up to 9600. The SRC-2 is powered by a surge protected internal power supply.

Ethernet capabilities are available with the SRC-2X.

Main Features:
• Inputs: 2 - Optically isolated inputs. Internally powered or externally powered 5 to 24vdc.
• Relays: 2 - SPST, 30Vdc/1 amp.
• Logic: Flash Microprocessor with non-volatile memory
• RS-232: RS-232, 8N1. 300, 1200,4800, 9600. Handshaking disabled.
• Connectors: Inputs/Relays - Plug-in euroblock screw terminals. Serial - Female DB-9 Power - 2.1mm coax connector, center positive.
• Power Requirement 9 VAC/DC, 1 Amp, wall transformer, supplied.
• Internal power supply surge protected.
• Size 2.60” x 4.25” x 1.12”, Plastic enclosure with aluminum end panels.
• Weight 1.0 lb.