SRC-2X Installation and Operation Manual
PRODUCT DESCRIPTION
The tiny TOOLS SRC-2X interfaces two optically isolated inputs and two SPST relays to an Ethernet port. The SRC-2X can notify a users PC software program that any of two optically isolated inputs have been opened or closed and allows the users software to control two SPST, 1-amp relays. Communication with the SRC-2X is accomplished via short "burst" type ASCII commands from the users PC. The user may also add up to 64 ASCII strings per input and 16 user-defined strings per relay, while 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 an Ethernet connection. The SRC-2X is powered by a surge protected internal power supply. The SRC-2X may be rack mounted on the option- al RA-1 mounting shelf.
INSTALLATION
Please examine your SRC-2X carefully for any damage that may have been sus- tained during shipping. If any is noted, please notify the shipper immediately and retain the packaging for inspection by the shipper. The package contains the SRC- 2X, 7.5 VDC @ 1 amp wall power transformer, CAT 5 cable and this manual.
Installation of the SRC-2X in high RF environments should be performed with care. Shielded cable is suggested for all I/O connections. All shields and the station ground should be connected to the ground screw on either of the inputs terminals. It is recommended that all cables connected to the SRC-2X be looped through ferrite cores to suppress RF. Surge protection with RF filtering such as the Tripp-Lite ISO- BAR 4 or 6” is also suggested for the wall transformer.
Rack mounting: The SRC-2X may be rack mounted using the optional RA-1, 1-RU rack shelf. Apply a short strip of user-supplied Velcro to the bottom of the SRC-2X and attach the other mating strip to the surface of the RA-1.
Inputs connections: Two optically isolated inputs. Connect your equipment to the plug-in euroblock screw terminals labeled IN1 and/or IN2 and GND. Contact clo- sures, TTL logic and/or open collectors may be used to activate each input. To inter- nally power the optically isolated inputs, leave JP1 in the “LOC” position. To power externally, move JP1 to the “EXT” position and connect any positive DC voltage from 5 to 24 VDC to the “EXT+” terminal and the groundside of the power supply to the GND terminal. The red “DATA” led blinks when either input changes state.
Relay connections: Two SPST relays with Normally Open dry contacts. Make your connections to the desired relay. K1NO & K1COM and/or K2NO & K2COM. The two yellow led’s indicate which relay is active.
The SRC-2X is factory programmed for an internal voltage source for the optically isolated inputs. The baud rate should be left at 9600,8,N, 1 and the operating mode is set for PC control. The Dipswitches are used for baud rate and mode selection. To select the desired baud rate and mode, refer to the Dipswitch descriptions on pages 4 and 4. When your SRC-2X is reconfigured, reinstall the cover, screws, reat- tach all connections and apply power to the unit. Verify that the green “PWR” led is lit.
e-mail:support@broadcasttools.com voice: 360.854.9559 fax: 360.854.9479
NOTE:
To make jumper or Dipswitch changes, all connections should be removed from the SRC- 2X, along with the four screws on the bottom of the enclosure. Remove the cover to expose the circuit assembly, jumper and the Dipswitch.
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