This cord allows the CSR and/or CSRB CyberSync™ receiver to work with Sunpak brand flash units (with the exception of the 383 or 333). It also allows for triggering of certain cameras (Canon Rebels, Pentax SLRs, and potentially others that have a 2.5mm remote jack) with the CSR and/or CSRB.
Triggering The Flash Units and Camera Together
You will need two CyberSync™ CST2 Transmitters, the SC-CSTAUX cord, and a CyberSync™ CSR or CSRB for each flash unit in your setup.
1. Set the CyberSync™ CST2 (handheld) to CHANNEL 1.
2. Connect the CyberSync™ CSRB to the remote port on your camera using the SC-CSTAUX cord. Set the CSRB to CHANNEL 1.
3. Set a second CyberSync™ CST2 Transmitter to CHANNEL 2, and slide it inside the hot shoe of your camera. (*A separate CST is needed to accomodate the time it takes for the camera to raise the mirror and open the shutter. Without a second CST, if you tried to trigger the lights and camera together, the lights would trip earlier.)
4. Connect a CyberSync™ CSR or CSRB to each flash unit in your setup. Set each on CHANNEL 2.
*Please note this is an auxiliary cord. It does not arrive with any of the CyberSync™ components and must be purchased separately.