Instruction manual
101
APPENDIX S VSI-Pro Max Jumper Settings
Figure 241: VSI-Pro Max PCB Jumper Settings
See independent sections for complete description of jumper settings relating to its particular function. All Factory
Control Jumpers should not be changed for are only used for factory testing and configuration.
Jumper Default
Network RS-422/485 Termination
JP15 ON - Term 120 ohm
OFF - No Term OFF
DB9 Pin 8 Output (Only one ON)
JP3 ON - CTS Output OFF
OFF - No CTS Output
JP4 ON - Network RS-232 ON
OFF - No Network RS-232
Jumper Default
Register RS-422/485 Termination
JP2 ON - Term 120 ohm
OFF - No Term OFF
DB9 Pin 9 Selection
JP6 ON 1-2 Alarm 2 ON
OFF -Enable Signal Gnd Ref
JP18 ON - Signal Gnd Reference
DB9 Pull-Up 3.3K to 12VDC
JP8 ON RTS (Pin 7) ON
JP9 ON DSR (Pin 6) ON
JP10 ON DTR (Pin 4) ON
DB9 Pin 5 Selection
JP14 ON - RS-232 Signal Gnd ON
OFF - RS-232 Isolate Gnd
Register RS-232 Type
JP20 & JP21 ON 1-2 RS-232C ON
ON 2-3 Opto Isolated RS-232
NOTE: Must remove JP14 and use Pin 5 for iso-
lated ground when using Opto Isolated RS-232
input. If using TXD or other input/output signals
simulatenously, must remove JP6 and put JP18
ON and use Pin 9 for signal ground reference.
Factory Control
JP1 ON, JP5 OFF, JP11 ON, JP12 ON, JP13 OFF
VSI-Pro Max POS / Cash Register Interface
The VSI-Pro Max has several internal jumpers to allow the user to configure the device for many special configurations
for operation and interfacing. Some examples to use CTS for Hardware handshaking rather than output formatted
ASCII text. You may also use the internal RS-232 Opto Isolator if there is noise in the video or problem communicat-
ing with devices which have poor or incorrect grounding or isolation. External DSR or DTR can be configured for
pullups or not via removing jumpers. If you have any questions on these jumpers call the factory for detailed explana-
tions.
See the adjacent pages for detailed steps to remove the cover of the VSI-Pro Max to access the internal jumpers.
Make a note in this manual if you do change any so you can refer to them later.
UART PCB Installation & Configuration
This PCB must be installed at the factory for VSI-Pro Max PCB F6 or lower due to internal modification required. On this
version the “Register Data LED” will be disabled. For VSI-Pro Max PCB F7 or higher the user can install this PCB by just
plugging into the J4 connector and the “Register Data LED” will not be disabled. Jumper Settings; JP1 OFF, JP3 OFF,
JP4 OFF, JP5 ON, JP11 ON. RTS Alarm Input or Handshaking is not available when using the UART PCB.
The default setting of the VSI-Pro Max has no Opto Isolation on RXD configured and referenced to power/signal ground.
To configure RXD for Opto Isolation with isolated ground set the following; JP21 2-3, JP20 2-3, JP14 OFF, JP18 ON and
JP6 OFF both. Now RXD Pin 2 and Ground Pin 5 are Opto Isolated. Therefore no ground connection from the POS/Cash
Register to the VSI-Pro Max is made and isolated. TXD Pin 3 or Pin 8 and all other handshaking signals remain the same
and the signal ground is now available on Pin 9. Alarm 2 Hard Output is no longer available.
Opto Isolated RXD Pin 2 Register Input