OSDP IN/OUT Multi-Drop Mode


Beginning in Access It! Universal.NET 6.1, support has been added to have up to two OSDP readers wired to a single reader port allowing for a easier installations of paired readers. This functionality only is supported on Series 3 hardware.

Panel Requirements

The following Mercury-Security panels currently support multi-drop OSDP readers:

  • Series III MR-52
  • Series III MR-50
  • LP-4502
  • LP-1502
  • LP-1501
  • MR-51e (f/w 1.5.12)
  • MR-62e
  • EP-4502 (f/w 1.24.1)

Reader Requirements

In order to add an multi-drop OSDP readers to an Access It! Universal.NET system, the readers must support the following:

  • Address selectable between 0 and 3
    Multi-dropped readers must be uniquely addressed when wired to a single reader port.
  • Baud Rate configurable for 9600, 19200, 38400, or 115200

Access It! Universal.NET

SIO Configuration

The following steps outline how to add an SIO within Access It! Universal.

  1. Navigate to the Hardware menu by clicking the hardware section
  2. Expand SCPs by clicking the arrow icon
  3. Expand the name of the SCP for which the Series III SIO is going to be attached to by clicking the arrow icon
  4. Select the word SIOs from the expanded SCP
  5. From the right hand pane, select the SIO to be enable
  6. Click the Edit button from the icon tool bar
  7. Select the appropriate Model from the drop list
  8. Check the Device Installed check box
  9. Select the Options tab
  10. Check the Enable OSDP IN/OUT Mode checkbox
  11. Click Save

Reader Type Configuration
A reader type must be defined for each unique combination of installed reader address and baud rate.

  1. Navigate to the Hardware menu by clicking the hardware section
  2. Select Installed Readers
  3. Edit reader 1 of the newly added SIO
  4. Select Reader Settings tab
  5. Click Edit  button to edit reader types
  6. Select New
  7. Select Options tab
  8. Select Enable ODSP driver from the LED mode/protocol droplist
  9. Set baud rate as needed for this reader
  10. Set address as needed for this reader
  11. Click OK
  12. Repeat steps 6-11 for each additional reader address/baud rate combination being used
  13. Assign the newly created reader types to each reader as needed

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  • 17-Jul-2018