VT485r / OSDPv2 reader extension slot
- Vladimir Tayzhev
- 1 Function and purpose
- 2 Technical specification
- 3 Drawing / Dimensions
- 4 Physical description
- 5 Installation of VT485r
- 6 Activate VT485r
- 7 Connect readers/keypads to VT485r
- 8 Add RFID virtual element (e.g. SE mini reader)
- 9 Adding the RFID cards
- 10 Accessories
- 11 Package contents
- 12 Frequently asked questions and errors
- 13 What is the OSDPv2 protocol and what are its advantages?
- 13.1 Higher Security
- 13.2 Advanced Functionality
- 13.3 Ease of Use
- 13.4 More Interoperability
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Function and purpose
The VT485r is an extension PCB board that allows for the connection of readers and keypads that support the OSDP protocol. This board is compatible with Vutlan monitoring systems, including VT335t, VT336t, VT825t, and VT855t. It can be installed while the unit is in operation, providing flexibility and minimizing downtime. The board comes with an internal termination that is switched on by default, which can be turned off if needed.
The VT485r supports various devices such as SE mini reader and other third-party OSDP readers or keypads, making it a versatile tool for integrating access control into Vutlan monitoring systems.
Technical specification
Function & Purpose | Description |
|---|---|
Device type: | Extension PCB slot |
Used for: | For connecting readers, keypads to Vutlan monitoring systems. |
Max. readers: | We recommend connecting up to x4 readers. See the diagram in the section “Connect readers/keypads to VT485r”. Up to x2 readers using internal system power supply. |
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Communications | Description |
Control: | In the Vutlan web interface |
Interface: | OSDPv2 |
Wiring & distance: | Readers installed up to 1000 m from VT485r |
Inputs/Outputs: | 4P4C, RS-485 |
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Environmental | Description |
Operating temperature | Optimal temperature range: -10° C to +80° C |
Operating humidity | 0 to 95 % (non-condensing) |
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General | Description |
Manufactured in: | Slovak Republic, E.U., by Vutlan s.r.o. |
HS code: | 8517 69 90 |
GTIN: | 8588009886327 |
Drawing / Dimensions
Physical description
a) "Status" - LED for displaying VT485r status.
LED color | Description |
Red | Sending signal |
Blue | Receiving signal |
Red - send
Blue - receive
b) “+12V, A+, B-, GND“ - VT485r port with RS485 pins
Installation of VT485r
This procedure can be done during an operational Vutlan monitoring unit.
Step | Picture | Description |
|---|---|---|
1
| Unscrew the small panel on the monitoring unit using the screw driver. Put the panel aside. | |
2 | Plugin VT485r PCB into the unit so that the PCB will placed between the PCB guide rails.
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3 | Take the panel from step 1 and cut off the panel inside it using pliers. | |
4 | Mount the panel back to the unit using the screw driver. |
Activate VT485r
Step | Picture | Description |
|---|---|---|
1 | Open Vutlan web Interface of your system. Go to panel “Preferences” >> tab “OSDP”. If the Extension VT485r is connected, you should see the the element “VT485R OSDP reader board” Tick “Enable OSDP” >> press “Save”. |
Connect readers/keypads to VT485r
You can connect the following OSDPv2 readers/keypads/devices:
Any other 3rd OSDPv2 party reader/keypad/device
Usually, OSDPv2 is back-compatible with OSDPv1 devices. However, each such device needs to be tested.
We recommend connecting no more than x2 devices/readers powering from VT485r. If you power too many devices, a fuse inside the monitoring unit will activate and it will power down the monitoring system.
Terminate B(-) and A(+) end of the line with a 120 Ohm resistor.
VT485r PCB has 120Ohm resistor termination.
Use only twisted pair cables for B(-) and A(+) conductors.
Add RFID virtual element (e.g. SE mini reader)
To add a reader to the system, we need to create an “RFID reader” virtual element.
# | Illustration | Description |
|---|---|---|
1 | Go to “System tree” panel >> press “+” at the top panel. A model window “Add new element” will pop up. Scroll down and press “RFID reader”.
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2 |
| Fill in the data >> press “OK” to add the reader |
Parameter | Description |
|---|---|
Name | Any distinguishable name you want |
Initial baud rate | 9600 |
Initial address | 0 |
Initial key | 303132333435363738393a3b3c3d3e3f |
Address | 15, all readers should have a different address |
Key | 00000000000000000000000000000015 |
# | Picture | Description |
|---|---|---|
3 | The reader is added. |
Parameter | Description |
|---|---|
Name | Any distinguishable name you want |
ID | given by the system automatically |
Type: osdp reader | given by the system automatically |
Class: devhwr | given by the system automatically |
Current state | “RFID reader not connected” - the reader is disconnected “Waiting for reading” - operating |
Address | 15 |
Key | 00000000000000000000000000000015 |
Adding the RFID cards
Adding an RFID card with a known
# | Picture | Description |
|---|---|---|
1 |
| Go to Vutlan web interface of the system >> “OSDP reader cards” panel >> press “+” at the top >> Fill in the fields: Card name - any name, e.g. Jack Miles Card key - a unique card identifier |
2a | a) If you already know the “Card key” and you are certain that it is correct >> press “OK” >> “Are you sure you want to save the card settings?” >> press “Yes” >> the card is added
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2b |
| b) If you do not know the “Card key” >> press “Read” >> Select a reader to read the card >> press “OK” >> Bring the Card key close to the reader >> The reader will beep >> a “Card key” field will get filled in automatically>> press “OK” >> “Are you sure you want to save the card settings?” >> press “Yes” >> the card is added |
3 |
| You can add multiple cards to the system. |
Accessories
This is a list of OSDPv2 recommended readers:
Model | Manufacturer | Description |
|---|---|---|
Successfully tested | ||
8CD 2.0 slim OSDPV2 |
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This is a list of OSDPv2 recommended keypads:
Model | Manufacturer | Description |
|---|---|---|
SE keypad | U-prox | We are testing this device now. |
Package contents
Included page VT485r package content
Frequently asked questions and errors
Problem | Cause | Solution |
|---|---|---|
A message pops up “Unable to update the element data!”
| A reader is connected incorrectly or the data entered is incorrect | Check the cable connections. Check the filled in data. |
I added VT485r as a virtual element, but the LEDs on VT485r are not blinking. | VT485r is faulty |
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OSDP tab does not appear in the settings panel. | You have an old cache stored in the browser. | Clean the cache of the browser for this page. In Firefox press Ctrl + Shift + R |
What is the OSDPv2 protocol and what are its advantages?
Open Supervised Device Protocol (OSDP) is an access control communications standard developed by the Security Industry Association (SIA) to improve interoperability among access control and security products.
OSDP was approved as an international standard by the International Electrotechnical Commission in May 2020 and has been published as IEC 60839-11-5.
SIA OSDP v2.2, which is based on the IEC 60839-11-5 standard, was released in December 2020. SIA OSDP is in constant refinement to retain its industry-leading position.
Higher Security
OSDP is more secure than the most common access control communications protocol.
OSDP Secure Channel supports high-end AES-128 encryption (required in federal government applications).
OSDP constantly monitors wiring to protect against attack threats.
Advanced Functionality
OSDP supports advanced smartcard technology applications, including PKI/FICAM and biometrics.
OSDP supports bi-directional communications among devices.
OSDP supports an advanced user interface, including welcome messages and text prompts.
OSDP’s use of 2 wires instead of 12+ allows for multi-drop installation, supervised connections to indicate reader malfunctions, and scalability to connect more field devices.
Ease of Use
Audio-visual user feedback mechanisms provide a rich, user-centric access control environment.
Guesswork is eliminated since encryption and authentication are predefined.
Low cost of implementation on an embedded device.
More Interoperability
Using OSDP enables communication among different manufacturers' devices and solutions.
The standard applies to peripheral devices such as card readers and other devices at secured access doors/gates and their control panels.
SIA promotes the standard at regular “plugfests” among manufacturers and at SIA InteropFest– an annual interoperability event held at the ISC West trade show.
The OSDP specification is currently recommended when TCP/IP, USB or other common protocols do not lend themselves to the application.
The OSDP specification is extensible to IP environments and the OSDP Working Group is working on deploying OSDP over IP soon.
Copyright:
Vutlan s.r.o.
Remote Infrastructure Monitoring and Control
43 ul.Svornosti, 821 06 Bratislava,
Slovak Republic, E.U.
www.vutlan.com