Table of Contents

1    INTRODUCTION 

2    TECHNICAL DESCRIPTION    

    2.1    OVERVIEW OF PCB-BORD    

    2.2    STATUS LED INDICATORS    

  

  2.3    POWER OPTION    

            2.3.1    +/- 24v input    

            2.3.2    J5 – Power output    

            2.3.3    J3 – Strapping pin for electronic lock    

    

    2.4    OUTPUTS    

            2.4.1    J2 - Electronic lock    

            2.4.2    J7 - Potential free relay    

    

    2.5    INPUTS    

            2.5.1    J9 – Exit button    

            2.5.2    J8 – Contact sensor    

            2.5.3    R29 – Intercom input    


3    STEP-BY-STEP INSTALLATION    

        3.1    PREPARATION    

            3.1.1    Software    

            3.1.2    Cable preparation    

            3.1.3    Tools    

       

         3.2    PHYSICAL INSTALLATION    

            3.2.1    Placement / Mounting    

      

          3.3    CONNECTING ELECTRONIC LOCK    

            3.3.1    Fail secure    

            3.3.2    Fail safe    

      

        3.4    CONNECTION OPENING BUTTON    

        3.5    CONTACT SENSOR    

        3.6    CONNECTING THE ST2020 INTERCOM    

            3.6.1    Cable revisions    

            3.6.2    Connecting the cable to the ST2020 Intercom    

       

         3.7    POWERING ON THE UNITS    



1    Introduction

This article provides instructions for setting up and installing the 200-002 LTE Door Central, which is specifically designed to be used in conjunction with the Steplock Access ST2020 Intercom.  


NOTE: There are two versions of the Door central for the ST2020 Intercom; PoE+ and LTE. This article only applies to the LTE version specifically for 200-002. For information on the other LTE or PoE+ version, please refer to our support pages. 

    

For how to install the intercom. Please follow  this article.  



2    Technical description

2.1    Overview of PCB-bord

J2 – Electronic lock

J3 – Strapping pin for electronic lock

J4 – NOT IN USE

J5 - Power out

J7 – Potential free relay

J9 – Exit button.

J8 – Magnet Contact

J11 - RS485 A-B

R29 – Intercom

+/- 24v – Power input

Power to - J5 

D2 - Firmware alive

D4 - Power

 


2.2    Status LED indicators

ST20290 PCB board have 2 status LED-indicators.


  • D2 - When D2 blinks green, it signifies that the firmware is running successfully. Should blink roughly every 5 seconds.
  • D4- A solid green colour on LED2 indicates that the unit is powered and is functioning properly. 


There is no other colour or blinking pattern that signifies different states.



2.3    Power option

2.3.1    +/- 24v input 

You power the 200-002 LTE +/- 24v input, using a DC balanced ripple-free power supply with a minimum capacity of 2 amperes.

 


IMPORTANT: Take extra care to measure the total power budget on your setup and configuration.  The Door central uses 600mA and the intercom uses 1000mA. When planning your power usage, don't forget to consider additional factors such as the electronic lock and whether you'll be using the J5 power output. It's crucial to calculate your total power budget to ensure that you have enough voltage and amperage to meet your needs. 
It is recommended to use a DC balanced ripple-free power supply with a minimum capacity of 2 amperes. Please note that the total power consumption of connected products may vary, so it's important to check this carefully before selecting the power supply.



2.3.2    J5 – Power output

The J5 component offers a choice of power output, either 12v or 24v. To select the desired output voltage, simply use the strapping pin located adjacent to the output.

 


2.3.3    J3 – Strapping pin for electronic lock

J3 is responsible for regulating the power supplied to the electronic lock, ensuring that it operates within safe and reliable parameters. Depending on the specific requirements of your application, J3 provides the flexibility to choose between two power output options: 12v and 24v.


NOTE: It is important to note that when using electronic locks other than STEP, it is highly recommended to incorporate a protective diode between the lock and the relay on J3. This diode serves as a safeguard against voltage spikes and reverse current, which can damage the electronic components and lead to system failure.

 



2.4    Outputs

2.4.1    J2 - Electronic lock

J2 functions as the relay for the electronic lock, providing a critical connection between the lock and the system. To configure J2 for your specific needs, simply use the strapping pin located on J3 to select the desired voltage output. This allows you to choose between 12v or 24v.

 


2.4.2    J7 - Potential free relay

“J7 - Relay Output” is a potential free relay and follows the “J2 - Lock output”, meaning if the “J2 - Lock-output” is triggered, then the “J7 - Relay output” will also be triggered without delay. 

 



2.5    Inputs

2.5.1    J9 – Exit button

J9 serves as the designated connection point for the exit button in the system.

 




2.5.2    J8 – Contact sensor

J8 serves as a contact sensor, designed to detect the state of the door (open or closed) regardless of whether it is locked or unlocked. 


IMPORTANT: It is critical to note that in the absence of a contact sensor on the door, it is necessary to connect pin A to pin B on this input to simulate the sensor effect. Failure to do so will result in the door not opening when the J2 relay is triggered.

 


2.5.3    R29 – Intercom input

R29 is the designated connection point for linking the ST2020 intercom to the door unit. This connection is crucial for enabling communication between the intercom and the door unit, allowing for seamless operation of the system. It is important to ensure that R29 is properly wired. Below you will find instructions for this. 

 




3    Step-by-step installation

WARNING: Only power on the ST2029 once you have carefully read and understood these instructions and confirmed that the unit is properly connected. Failure to follow these instructions may result in damage to the product and render it inoperable.

3.1    Preparation

3.1.1    Software

Prior to installing the ST2029, make sure that you done the following tasks in StepCloud:


•    Created a Cloud tenant for your end customer

•    Created a Property in the end customers Cloud tenant

•    Added the mac-address of the ST2020 to the end-customers Cloud tenant. 


NOTE: If you have not done this, and you do not know how to do the above mentioned steps, contact our support specialists.


3.1.2    Cable preparation

The following cables are required for a standard installation and should be installed in the door location before installation begins.    


•    CAT 6 cable - From PoE+ enabled switch to ST2029 PoE+ Door Central. 

•    CAT 6 cable from ST2029 PoE+ Door Central to the Intercom. Note: This cable is split at the intercom side. 

•    Standard wiring used between electronic lock, exit button, KAC etc.  



3.1.3    Tools

The following tools will be required for the installation: 


•    A good quality RJ45 termination tool

•    Good quality RJ45 Network cable tester 

•    RJ45 plugs

•    CAT6 cable shielded / unshielded.



3.2    Physical installation

NOTE: This guide assumes that all necessary cables have been installed between the Intercom location (Point A), the 200-002 LTE Door Central location (Point B), and you have set up proper power to the door central (Point C). The cables have been properly terminated and are ready to be connected. The CAT 6 cable must not be longer than 100 metres between each point.


3.2.1    Placement / Mounting

The ST2029 should be installed in close proximity to the door. A common location to mount the ST2029 is above the door as this is where the majority of electronic lock, exit button, and door automation connections are typically found.

 



3.3    Connecting electronic lock

3.3.1    Fail secure

For fail secure configuration connect “+” on the left pin “NO+” on J2 - Lock Output and “-” on the middle pin (“-”) of the J2 - Lock Output as illustrated below.

3.3.2    Fail safe

For fail safe configuration connect “+” to the right pin “NC+” on J2 - Lock Output and “-” on the middle pin (“-”) of the J2 - Lock Output as illustrated in Fig.14.



NOTE: If electronic locks other than Steplock are being used, it is recommended to install a protection diode (e.g. 1n4004) between the electronic lock and the output. The diode should be placed as close to the electronic lock as possible.



3.4    Connection opening button

Connecting the exit/open button to the 200-002 LTE is straightforward. Connect exit button on J9. 


If your exit/open button requires 12V, it can be powered separately using the J5 - Power output. In the following example, we have used a touchless exit button which requires 12V.


 




3.5    Contact sensor

IMPORTANT: Note that J8 is designated for use with a contact sensor. In the absence of a contact sensor in the door, it is necessary to connect pin A and B to maintain the door in an open position when an open request is made.


 



3.6    Connecting the ST2020 intercom

NOTE: These instructions are only for connecting the ST2020 intercom to the 200-002 LTE Door Central. For detailed instructions on how to install and set up the ST2020 intercom, please refer to the following article.

3.6.1    Cable revisions

The 200-002 connects to the ST2020 Intercom using a CAT 6 (T568B) cable. 

There are three revisions for the cable that comes with the ST2020 intercom.


CAT 6 T568B REV 1:


•    Brown/White     = 12V

•    Brown                = PWR_GND

•    Blue                   = RS485B

•    Blue/White        = RS485A


 



Cable revision: CAT 6 T568B REV 2


•    Red                  = 12V

•    Black               = PWR_GND

•    Brown              = RS485B

•    Brown/White    = RS485A


 



Cable revision: CAT 6 T568B REV 3


•    Red                    = 12V

•    Black                    = PWR_GND

•    Blue                   = RS485B

•    Blue/White        = RS485A


 



NOTE: Please note that if you are creating the cable for the ST2020 Intercom and the 200-002 door central on your own, it is important to use a network tester to verify that at least the fully terminated pairs are correctly terminated. You should have ok on the following pins: 1,2,3 and 6. 


IMPORTANT: Use only the following RJ-45 plugs. 

 


3.6.2    Connecting the cable to the ST2020 Intercom

Insert the fully terminated end of the cable it into the "R29" port located on the bottom PCB of the 200-002 LTE unit.

 


Connect the split end of the cable to the ST2020 intercom in the following manner depening on your cable (See paragraph 3.6.1 above for details) :


Example:

 

3.7    Powering on the units

WARNING: If you have linked other devices to the 200-002 LTE unit, it is important to examine the strapping pins on J3 and "Power to J5" before activating the unit. Make sure you have correct voltage for your device and that your total power budget is met. 


IMPORTANT: It is recommended to use a DC balanced ripple-free power supply with a minimum capacity of 2 amperes. Please note that the total power consumption of connected products may vary, so it's important to check this carefully before selecting the power supply."



Now you can connect a balanced, ripple-free power supply with a minimum output of 2 amperes and 24 volts to the +/- 24V power input.