The Broadcast Tools SRC-16 + G2 is a computer GPIO interface to the real world. Using RS-232 serial or TCP/UDP Ethernet port the SRC-16 + G2 can notify your PC software program that any of 16 optically isolated inputs have been opened or closed and allow your software to control any of the 16 SPST, 1-amp (form A) relays.Communication with the SRC-16 + G2 can be accomplished via short burst type ASCII or binary commands from your PC (computer mode.) Alternatively, the SRC-16 + G2 may be used in Data mode which allows the user to define custom ACSII strings to control the relays as well as send custom ASCII strings when an input is on or off. Two units may be operated in a standalone pair mode to form a relay extension cord, with 16 channels of bi-directional I/O over serial or Ethernet. The unit can communicate using RS-232, TCP, or UDP. Serial data rates up to 38,400 baud are supported. The SRC-16 + G2 may be expanded to 64 inputs and 64 outputs from a single serial or Ethernet port by adding up to three additional units.Main Features:16 optically-isolated status/trigger inputs. Dry contact (default), or wet +3.3 to +24 VDC input, or +25 +48 VDC input via an external 3.3K ohm resistor.16 SPST (form A) dry contact (30v @ 1-amp maximum) relay outputs, normally open (default,) or normally closed, each jumper selectable.RS-232 serial interface and TCP/UDP Ethernet interface for connection to a PC or Network.Backwards compatible with the AT1616, SRC-16 and SRC-16 Plus commands.LED indicators for all inputs and relay outputs.Status and relay connections are on removable euro-block screw terminal connectors to simplify wiring and service, mating plugs are supplied.Expansion ports allow up to three additional units to be added (daisy-chained) to one serial/Ethernet port for up to 64 inputs and outputs.Fully RFI proofed.Surge protected internal power supply, 9VDC @1amp universal switching power adapter with 120/240 IEC AC input suppliedUp to two SRC-16 + G2s may be rack mounted on one RA-1, 1-RU rack shelf.Specifications:Digital Inputs: 16 – Optically Isolated inputs, dry configuration (default) or wet configuration +3.3 to 24 VDC input, or +25-48 VDC input via an external 3.3K ohm resistor). 50 ms minimum duration.Relay Outputs: 16 – SPST, 1 amp/30 VDC relays. Jumper selectable either normally open (N.O) or normally closed (N.C) Factory default = N.O.RS-232 Serial Port: 1,200, 4,800, 9,600, or 38,400 baud, 8 data bits, no parity, 1 stop bit.Display: LEDs for inputs, relays, Tx & Rx serial data, TCP link, and power.Interfacing:-Inputs Plug-in euroblock screw terminals. Two 16-pin connectors.-Relays – Plug-in euroblock screw terminals. Two 16-pin connectors.-RS-232 Serial Port RJ11 Jack-TCP/UDP Ethernet Port RJ45 Jack with Link LEDs-Expansion port Two RJ45 jacks.Logic: Flash microprocessor / Non-volatile memory.Power: 9 VDC @ 1000ma. 2.1mm ID x 5.5mm OD coaxial connector, center positive. Surge protected. Universal (90 – 264 vac / 50/60 Hz) with IEC input plug and domestic AC cord.Operating Environment: 32F/0C-122F/50C; 0%-95% non-condensing relative humidity; 10,000ft/3048m