Manual

STEP  Door Controller ST2029-DCE
Version 1

Item number: ST2029-DCE

1. Introduction

This article provides instructions for setting up, installing and using the ST2029 DCE Door Central. 
NOTE: There are three versions of the ST2029; DCE, PoE+ and LTE. This article only 
applies to the DCE version. For information on the PoE+ and LTE version, please refer to 
the User Manual ST2029-POE Door central for intercom ST2020 or ST2029-LTE Door central for intercom ST2020

1.1 Technical specifications

2. Overview of PCB-board

Following is an overview of the PCB board for the ST2029-DCE Door central. 

2.1. Status LED indicators

The ST2029-DCE PCB board is equipped with four status LED indicators that provide important information about the device's status:

• The indicator, ETH, blinks when the ST2029 is connected to the internet and communicating with the cloud      
   service.

• The indicator, PLC, blinks when the ST2029 receives power from the ST2055 Master via DCE.

• The indicator, COM, blinks blue when there is successful communication with the intercom. This indicator 
   should blink approximately every five seconds. If COM does not blink or blinks in a different pattern, it may 
   indicate an issue with the communication between the ST2020 intercom and the ST2029 DCE

• The indicator, PWR, remains a solid blue colour when the ST2029 DCE PCB board is powered

It is essential to note that there are no other colours or blinking patterns used for these LED indicators to signify different states.

2.2 Power Supply

The ST2029 DCE is powered via the ST2055 DCE-Master. For more information see manual for ST2055.
 

2.2.2 Jumper Pins

The ST2029 has 2 jumper pins, both used to adjust the voltage to locks or external power output.

J11 is used to adjust the voltage for the Lock Output.

J6 is used to adjust the power supply voltage to external devices

2.3 Outputs

2.3.1 J5 - Lock Output

The pins on the "Lock Relay" are labeled "+ | - | +".
In practice, if you have a fail-safe electronic lock, you must connect the "+" wire to the left pin labeled "+". Conversely, if you have a fail-secure configuration, the "+" wire should be connected to the right pin labeled "+".

NOTE: It is important to understand that the correct wiring configuration depends on the type of electronic lock used. A fail-secure configuration keeps the door locked in the event of a power failure, while a fail-safe configuration unlocks the door in the same situation. Therefore, it is crucial to identify the correct wiring setup for the specific lock used to ensure proper functionality and security.

2.3.2 J4 - Relay Output

Relay Output, is a potential-free relay that is linked to the Lock output with a 1000ms delay feature.
This means that when the Lock output is triggered, there is a one-second delay before the relay output is activated.
This delay can be useful in a variety of situations where a brief pause is needed between triggering the Lock output and activating the Relay output.

2.3.3 J10 - Power Output

J10 is a power output port that is explicitly designed to provide a stable power source for external accessory devices only. This port can supply the necessary voltage and current required to ensure efficient and reliable 
operation of compatible devices.
The use of J10 enables external accessory devices to draw power from the ST2029 DCE, eliminating the need for a separate power supply. This can be beneficial in situations where you -for example - have an exit button that 
requires power.

NOTE: It is important to note that J10 is designed to output direct current 
(DC) power only.

IMPORTANT: It is important to note that J10 is not intended for cascading connections, meaning it is not designed to be used as a power supply for other devices or systems. To avoid any potential damage, it is 
recommended to use J10 solely for powering external accessories devices that are compatible with the voltage and current provided by the port. 

2.4 Inputs

2.4.1 J8 - Open button

The Open button input is designed to trigger both the J4 Relay output and the J5 Lock output simultaneously when activated. This means that when the J8 port is triggered, it will result in the immediate activation of the J4 and J5 ports. 

This functionality can be useful for controlling the access to a specific area, as it enables the device to unlock the door and activate additional systems or devices simultaneously. For instance, it could be used to activate a 
camera system or a notification system to alert security personnel.

NOTE: It is important to note that triggering the J8 port will cause an immediate and simultaneous activation of the J4 and J5 ports. Therefore, it is recommended to use this feature carefully and with proper consideration 
of the potential consequences. 

2.5 J1 - ST2020 Intercom

The J1 port, also known as the ST2020 Intercom, is a multi-functional port that provides power, communication (RS485), and Ethernet to the ST2020 intercom.

The power delivered through J1 ensures that the intercom is continuously powered. There is no need to power the ST2020 additionally. 

The RS485 communication allows for two-way communication between the intercom and the ST2029 DCE Door Central.
Moreover, the Ethernet connection provided by J1 enables the intercom to connect to a local network or the internet, enabling residents to grant access to visitors via their mobile devices.

NOTE: It is important to note that the RJ45 cable used with J1 is split at the intercom end, meaning that it is divided into separate connections for power, communication, and Ethernet. 

You can purchase a pre-assembled cable in either 15 meters or 5 meters. ST2062 (15M) or ST2063 (5M)

2.6 J9 - DCE

The J9 input is where you connect the DCE power and communication from the Master ST2055. It´s the one that supplies power and communication for both the ST2029 and ST2020.

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 preparation

Before installing the ST2029 Door Control unit, it is important to ensure that the following tasks have been completed in StepLock Cloud.

• Create a Cloud Tenant for the end customer. This tenant will serve as the platform for managing and monitoring the device and its associated components.
• Create a property within the end customer’s cloud tenant. This allows the customer to manage and monitor the device and its associated components at a specific location. A system must have at least one property.
• Add the device’s MAC address to the end customer’s Cloud tenant. This ensures that the access control system is properly integrated and can communicate with the specified device.

3.1.2 Cable preparation 

Before installing the ST2029 Door Control uni, it is important to ensure that all necessary cables are correctly installed at the door location.

Please note that each power and communication output on the DCE-Master 2055 is by standard protected by a 1.5 A fuse. This must be considered when sizing connected power-consuming equipment.
The fuse can be replaces with a higher Ampere. For more information see manual for ST2055.

3.1.3 Cable

In addition to the cable from the DCE-Master UPS, standard cables are required to connect the electronic lock, exit button, and other related components to the door controller. It is important to install these cables securely to prevent complications or failures during the installation process.

To select the correct cable between the DCE-Master UPS and the ST2029 DCE, and possibly onward to the next DCE unit, a power calculation must be performed, including all connected equipment: ST2029, intercom, electric locking devices, and any other power-consuming equipment.

NOTE: If you have a series connection with 3 door environments, all equipment for these 3 door environments must be included in the power calculation for the individual cable.

Table 1 provides a general indication of the current capacity for cables with different conductor cross-sections. Please note that this is only a guideline. Proper sizing requires a calculation based on the specific conditions of the actual installation site.

Table 1 – Reference Values for Maximum Current Draw in Copper Cables

3.1.4 Physical Installation 

NOTE: It is important to verify that all cables are correctly and securely installed to prevent any complications or failures during the installation process. It is recommended to visually inspect all cables and use a network tester to confirm that the cables are in good condition before proceeding with the installation. This will help prevent potential issues caused by incorrect or improperly installed cables.

Important: Always disconnect power from the door control unit before connecting new accessories.

3.1.5 Placement / Mounting

A common location for mounting the door controller is above the door, as this is typically where most of the connections for the electronic lock, exit button, and door opener are located.
By installing the Door control unit in this location, it can easily and efficiently control and monitor the operation of these components.

3.2 Connecting electronic lock

3.2.1 Fail Secure

To configure the ST2029 for fail secure mode, connect the positive (“+”) wire to the left pin of the J5 Lock Output and the negative (“-“) wire to the middle pin of the J5 Lock Output, as shown below. 

3.2.2 Fail safe

To configure the ST2029 for fail-safe operation, connect the positive (+) wire to the right pin on J5 Lock Output and the negative (-) wire to the middle pin (-) of J5 Lock Output. This wiring configuration 
ensures that the door will remain unlocked in the event of a power failure, allowing for safe exit from the building. 

NOTE: If electronic locks other than StepLock are used, it is recommended to install a protection diode (e.g. 1N4004) between the electronic lock and the output.

3.3 Connecting opening button

Connecting the exit/open button to the ST2029 is a simple process. Pin A and pin B should be connected to the exit button. 

If the exit/open button requires 12V power, it can be supplied separately using the J10 - Power output. For 
instance, a touch-less exit button that requires 12V has been used in the following example.

Additionally, before connecting the exit/open button, it is recommended to verify the voltage requirements of the button, so you can sett the strapping pins on J6 for correct voltage. 

NOTE: In this example “Left pin” refers to the pin on the left side with the PCB board oriented so that the “Power Out” is upside down. See below illustration.

Begin by setting the strapping pin on J6 to 12V OUT. Next, connect the +12V (RED) wire from the exit button to the left pin on J10. After that, proceed to connect the GND (BLACK) wire to the right pin on J10. Continue by 
connecting the NO (GREEN) wire to the right pin on J8, and finally, connect the COM (YELLOW) wire to the left pin on J8.

NOTE: Take care to measure your total power budget when you are using J10 - Power Output. 

3.4 Connecting swing door operator

If you intend to use the J4 Relay output to trigger a door on a "open door schedule" with swing door operator, you'll need to add an external relay to the system. This is a necessary to prevent constant triggering of the swing door operator and keeping the door open all the time.

Below is one example, there are other ways to ensure correct functionality.
Ensure that both elbow switches receive power. You can use an external power source or J10 Power Output, depending on your total power budget. When using J10, it's important to calculate the total budget carefully. It's also crucial to determine whether the external relay requires 12V or 24V and plan the power budget accordingly.

To connect the system;

• Connect the elbow switch on the outside to the normally open (NO) contact of the J4 relay output. 

• Connect the common (C) contact of J4 relay output to the power input of the external relay. 

• Connect the elbow switch/exit button on the inside to the power input of the external relay. 

• The J8 - Open button should be connected to the output of the external relay. 

• Connect the swing door operator to the secondary output of the external relay.

NOTE: This particular system configuration is designed to enable the door to stay closed yet unlocked during an open door schedule. When the door is in a locked state, it is necessary to use the elbow switch to activate the swing door operator after successfully scanning an access card or tag.

3.5. Connecting the ST2020 Intercom

NOTE: Please note that these instructions are solely intended for connecting the ST2020 intercom to the ST2029 Door Central DCE. For comprehensive instructions on how to install and configure the ST2020 intercom, please 
consult the installation manual for the ST2020.

3.5.1 Cable revisions

In order to establish a connection between the ST2029 Door Control unit and the ST2020 Intercom, you will need a CAT 6 (T568B) cable. However, it's important to note that the CAT6 cable is split on the intercom side. 
Therefore, it's essential to use the correct revision of the cable that comes with the ST2020 intercom to ensure compatibility and a reliable connection.

Please refer to the following revisions of the cable that might come with the ST2020 Intercom.

3.5.1.1. CAT 6 T568B Rev 1

Brown/White: This cable provides 12V of power to the intercom. It's important to note that the voltage level should not exceed 12V to avoid damaging the intercom.

Brown: This cable serves as the power ground (PWR_GND) for the intercom. It helps ensure proper electrical grounding and reduce the risk of electrical shock.

Blue: This cable functions as the RS485A, which is a communication protocol used in serial communication systems. It allows the ST2029 Control unit to communicate with the ST2020 Intercom.

Blue/White: This cable serves as the RS485B, which is the second communication wire in the RS485 protocol. It works in tandem with the RS485A wire to facilitate bidirectional communication between devices.

3.5.1.1. CAT 6 T568B Rev 2

Red: This cable provides 12V of power to the intercom. It's important to note that the voltage level should not exceed 12V to avoid damaging the intercom.

Black: This cable serves as the power ground (PWR_GND) for the intercom. It helps ensure proper electrical grounding and reduce the risk of electrical shock.

Brown: This cable functions as the RS485A, which is a communication protocol used in serial communication systems. It allows the ST2029 Control unit to communicate with the ST2020 Intercom.

Brown/White: This cable serves as the RS485B, which is the second communication wire in the RS485 protocol. It works in tandem with the RS485A wire to facilitate bidirectional communication between devices.
 

3.5.1.1. CAT 6 T568B Rev 3

Red: This cable provides 12V of power to the intercom. It's important to note that the voltage level should not exceed 12V to avoid damaging the intercom.

Black: This cable serves as the power ground (PWR_GND) for the intercom. It helps ensure proper electrical grounding and reduce the risk of electrical shock.

Blue: This cable functions as the RS485A, which is a communication protocol used in serial communication systems. It allows the ST2029 Control unit to communicate with the ST2020 Intercom.

Blue/White: This cable serves as the RS485B, which is the second communication wire in the RS485 protocol. It works in tandem with the RS485A wire to facilitate bidirectional communication between devices.

3.5.2. Connecting the ST2020 Intercom

When connecting the ST2029 Control unit to the ST2020 Intercom, it is important to understand that the CAT-cable needs to be split at the intercom side. This means that the cable's wires are separated into two groups, and each group connects to a different port on the intercom side panel at the back.

It is crucial to connect the split side of the cable correctly because doing so will ensure optimal performance and reliability of the system. The specific steps for connecting the cable will depend on the type of cable you have. 
Therefore, it is recommended that you refer to the cable revisions in the previous chapter to ensure that you connect the cable properly.

If you have terminated your own CAT6 cable, it is essential to use a network tester to check that you have communications on pins 1, 2, 3, and 6. 

Pins 4, 5, 7, and 8 are split on the intercom side and cannot be tested. Pin 7 and Pin 8 are used for 12v power and PWR_GND, respectively, while pins 4 and 5 are utilised for RS485 A and B communication. Incorrectly connecting 
these pins can lead to power issues or communication problems, which can cause the system to fail. 

NOTE: It is essential to identify the correct revision of the CAT6 cable when connecting devices. Here is the wiring configuration for CAT6 cable revision 3. Please note that the illustration below applies to this specific revision only.

3.6 Power On the Device

We have now reached the point where everything required to operate the door control unit is connected, and we can power on the device.

Connect the power and communication cable.
The door controller should power on by first lighting the power LED, and after approximately 30 seconds, the watchdog LED should begin blinking.
The system is now started.