OSDP is a bi-directional protocol that can be used to communicate between devices. When used with readers it has advantages over the typical Wiegand and Clock/Data protocols in that the communication is bi-directional. This allows functionality like clock updates, LCD text updates, and detecting if the device is online.
OSDP Readers require at least Access It! Version 5.2+ to add within the Access It! software.
Functionality for clock and LCD text updates currently exist only on the MR-DT keypad.
OSDP v0.9
- EP-1501
EP-1501+ Reader does not support OSDP. - EP-1502
- MR-50 Series II
- MR-52 Series II
- MR-51e
- MR-DT min f/w 1.63
OSDP v2.1.6 w/secure channel
- LP-1501
LP-1501+ Reader does not support OSDP. - LP-1502*
- LP-4502*
- EP-1501 min f/w 1.201
EP-1501+ Reader does not support OSDP. - EP-1502 min f/w 1.201
- EP-2500 min f/w 1.201
- EP-4502 min f/w 1.208
- MR-52 Series III*
- MR-50 Series III*
- MR-51e min f/w 1.5.9
- MR-62e
OSDP Readers cannot be assigned an address from an MR-62e. Readers must be addressed prior to connecting to the MR-62e. - MP-02
In certain installation environments, OSDP readers are interpreting a non-driven 485-line as data. This interpretation results in a communication fault that is inhibiting the panel and reader from properly communicating. Place a 120Ω +/- 2Ω resistor on the panel side to pull down the Mercury RS485- (D0) to GND line. This will create a communication bias that will keep the reader from improperly interpreting data. To function properly, there must be no ground faults in the installation. Please ensure that the DC Ground (power supply return) is not connected to earth ground. The following panels must have a resistor installed.
- LP-1501 where the PCB revision printed on panel is a "B" and the assembly revision found on white sticker is a "B"
- LP-1502 where the PCB revision printed on panel is a "C" and the assembly revision found on white sticker is a "C"
- LP-4502 where the PCB revision printed on panel is a "B" and the assembly revision found on white sticker is a "C"
- MR-50-S3 where the PCB revision printed on panel is a "F" and the assembly revision found on white sticker is a "F"
- MR-52-S3 where the PCB revision printed on panel is a "B" and the assembly revision found on white sticker is a "E"
In order to add an OSDP reader to an Access It! system, the reader must support the following:
- Address selectable between 0 and 3
OSDP Readers cannot be assigned an address from an MR-62e. Readers must be addressed prior to connecting to the MR-62e. - Baud Rate configurable for 9600, 19200, 38400, or 115200
With Access It! v5.2 only a single OSDP reader is allowed for each reader port. This has changed with Access It! v6.1 and newer. See **OSDP IN/OUT Multi-Drop Mode for more information.**
| HID OSDP Reader | Panel Reader Port |
| Tan | Data 0 |
| Red/Green | Data 1 |
| HID SIGNO | Panel Reader Port |
| Green | Data 0 |
| White | Data 1 |
| Farpointe Data OSDP Reader | Panel Reader Port |
| White (D1) | Data 0 |
| Green (D0) | Data 1 |
| WaveLynx OSDP Reader | Panel Reader Port |
| White (RS-485B) | Data 0 |
| Green (RS-485A) | Data 1 |
| Vanderbilt OSDP Reader | Panel Reader Port |
| A | Data 0 |
| B | Data 1 |
Powering up Wavelynx reader and holding at a 45 degree angle reset to factory defaults./
- Within Access It!, navigate to the Hardware menu
- Within the Hardware Tree, select Installed Readers
- Edit the reader that will be using the OSDP Protocol
- Select the Reader Settings tab
- Select the Edit button next to Reader Type
- Select New
- Within the Reader Type Name field, enter a friendly name for the OSDP format
- Select the Options tab
- From the LED mode/protocol list, select the option Enable OSDP driver
- Select the baud rate to be used for this OSDP format
- Select the reader address for this OSDP format
- If encrypted OSDP communication is required, select (check) the Secure channel option
See Secure Channel Configuration section for more information. - Selecting Enable diagnostic tracing will insert debugging information within the SCP debug text file
Only to be enabled per the advice of RS2 Technical Support. - Select the Reader LED Function to be used for this OSDP format
- Click OK
- Click Save
Within Access It!, the following steps must be taken.
- Within Access It!, navigate to the Hardware menu
- Within the Hardware Tree, select Installed Readers
- Edit the reader that will be using the OSDP Protocol
- Select the Reader Settings tab
- Set the Reader Type to the newly created OSDP format
- Click Save
Enabling the Secure Channel OSDP setting will encrypt the data communication between the OSDP reader and the SIO reader port. Prior to the following steps, the reader must ready to accept the default key in order to begin using encrypted communication.
Please note that once a reader has been paired to an encrypted reader channel, the reader is married to that specific port for life and will no longer work with any other reader port without first being unpaired. To un-pair a reader Access It! Technical Support needs to be engaged.
Not all OSDP readers support Secure Channel. Consult the reader manufacturer for Secure Channel compatibility.
- Within Access It!, navigate to the Hardware menu
- Within the Hardware Tree, select Installed Readers
- Edit the Reader
- Select the Reader settings tab
- Ensure the reader type assigned is configured for OSDP Secure Chanel
- Click Save
- Right click on the reader which requires encrypted OSDP communication
- From the command list, select Start Link Mode
