Instruction manual
65
VSI-Pro VIDEO SERIAL INTERFACE
HYDRA / REGCOM COMMUNICATION PROTOCOL
OPERATION
The RegCom receives RS-232 data from a cash register, VSI-Pro, Interface Adapter, or ECR Interface card inside the
cash register. It then stores this data in its buffer before sending it on to the Hydra via the RS-485 network.
The RegCom & Hydra use a bi-directional, 2-wire RS-485 databus to communicate with each other. The Hydra is a
“master” device and the Regcom is a “slave” device. One master device can be connected to a maximum of 16
slave devices. Only one master device can exist on a single network.
The master device or Hydra controls the flow of data by polling each of the slaves in turn. When polled, a slave device
or RegCom will either respond with a ‘‘No Data’’ code to say it has no data to send, or it will begin sending data from its
buffer.
The Hydra can support many manufactures of DVR for direct storage of the transaction data on the DVR as a file
rather than just inserting in the video image for recording. It also supports the VSI-ADD (VSI Addressable) and Vnet
formats which allows multiple VSI-Pros to be mounted in a convenient rack and connected on Hydra for display of cash
register data remotely.
HYDRA COMPATABILITY LIST
DVR
AVE MVDR3000 Pelco DX8100 Heitel Revo
AVE MVDR5000 Sanyo DSR-HB8000 Artnix IDIS
AVE DRX Excalibur Pinetron DigiIT Geovision
Norbain Columbus Dallmeier Dynacolor
GE StoreSafe Appro Toshiba
Kalatel StoreSafe Redi Watch Nuvico
NOVAR VP UDP Technology Samsung
Other
RegCom
Networker
Vnetworker
LED STATUS INDICATION
Status light A illuminates whenever data is sent from the Regcom to the master unit .
Status light B illuminates to indicate the Regcom is correcly connectly connected via the RS-485 network to the master
unit.
Figure 115: Hydra / Regcom Rear PanelFigure 114: Hydra / Regcom Front Panel
HYDRA and REGCOM APPENDIX C