Bolt VS-570SMI Wireless TTL Flash for Cameras - Manual (Page 16)

16 | Extended Interface
Extended Interface
You can connect your VS-570 to an external power source or PC sync via the extended interface on the side of
the flash.
External power source: An external power source, such as the Bolt Cyclone Battery Pack, can greatly
increase the battery life of your flash and reduce the recycle time in between flashes.
Note: When using an external power source, the AA batteries must still be in the flash in order to operate.
PC Sync: You can synchronize your VS-570 with a camera by running a PC cord between your camera and the
VS-570’s PC sync socket. This lets you position the flash away from the camera, thus giving you more
lighting options.
Note: The PC sync socket on the VS-570 is only for synchronous signal input, and not output.
To access the extended interface, follow these steps:
1. Pull back the contact cover on the side of the flash.
2. Plug the cable into the corresponding socket.
A. For an external power source, plug the Bolt BO-1011 power cable (sold separately) into the external
power source socket.
B. For PC sync, plug a PC cord into the PC sync socket.