I couldn't get the strobe to fire using the Stand Alone Controller and tried different cables and other strobes. The only way I could get the strobe to fire was using the Adorama R2 RF remote triggered by the Controller with a sync cable. After some time I traced the problem down to type of cables used. The strobe placed the trigger voltage (~ 4.7 volts) between the external trigger input connector center pin and the next ring on the connector, not the base ring ground pin on the dual conductor cable!! So the Controller was shorting the center pin to the base but the strobe wasn't firing because the second ring wasn't getting grounded!! The reason the RF trigger worked was because the old sync cable uses only a center pin and ground base single conductor cable and the trigger was being done with RF rather than the external sync input on the Studio Strobe (has built in RF).
You may already know this, but I didn't or maybe just forgot!! Only single center conductor connector & cables should be used for sync trigger, not the popular dual conductor type. Fortunately I have a couple adapters that I was able to use that short the second ring to the base of the dual conductor cables, thus creating an effective single conductor cable assembly.
Going to order some single conductor cables soon, so I don't get bit by this again
Hope this helps someone having trouble with sync cables triggering strobes and other items.
Best,
